Updated on 2024/10/05

Information

 

写真a

 
SAEKI OSAMU
 
Organization
Institute of Mathematics for Industry Division of Fundamental mathematics Professor
School of Sciences Department of Mathematics(Joint Appointment)
Graduate School of Mathematics Department of Mathematics(Joint Appointment)
Joint Graduate School of Mathematics for Innovation (Joint Appointment)
School of Engineering (Joint Appointment)
School of Engineering (Joint Appointment)
Title
Professor
Profile
My main research interest is the global singularity theory of differentiable mappings. It has been known that differentiable functions on a manifold can be well used to study its global geometric structures. In the 1950's Thom began to try to generalize such a theory to that of differentiable mappings between manifolds. However, because of the difficulty in controling local singularities, the theory has not been well developed until recently. So I am studying differentiable mappings between manifolds with only mild singularities or those between low dimensional manifolds. This kind of global study of singularities is fairly new and my recent results have shown that the singularities of differentiable mappings play an essential role in the study of geometric structures of manifolds. In this way, it has been recognized that such a study is important in Topology. Other than the above mentioned research, I am also interested in the following vast area of Topology and related fields: primary obstruction to topological embeddings, separation properties of codimension 1 maps, topology of complex isolated hypersurface singularities, fibered knots, 4-dimensional manifolds, codimension 1 embeddings, differential geometric invariants of space curves, unknotting numbers of knots, etc. I am also interested in the asymptotic behavior of generalized Fibonacci sequences. Furthermore, I am interested in the application of Topology to other areas in Science and Industry, such as DNA knots, visual data analysis for multivariate functions, analysis of materials from microscopic levels, etc.
Homepage
External link

Research Areas

  • Natural Science / Geometry

Degree

  • Doctor of Science

Research History

  • Kyushu University Institute of Mathematics for Industry Professor

    2011.4 - Present

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    Country:Japan

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  • Kyushu University Faculty of Mathematics Professor

    2002.4 - 2011.3

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    Country:Japan

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  • Yamagata University Faculty of Science Assistant Professor

    1987.10 - 1993.2

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  • 山形大学:1987年10月〜1993年2月 広島大学:1993年3月〜2002年3月

Research Interests・Research Keywords

  • Research theme:Global Theory of Singularities

    Keyword:Global Theory of Singularities

    Research period: 2024

  • Research theme:多様体論

    Keyword:多様体論

    Research period: 2024

  • Research theme:Visualization of Multivariate Data

    Keyword:Visualization of Multivariate Data

    Research period: 2024

  • Research theme:低次元トポロジー

    Keyword:低次元トポロジー

    Research period: 2024

  • Research theme:Mathematics for Industry

    Keyword:Mathematics for Industry

    Research period: 2024

  • Research theme:Theory of Manifolds

    Keyword:Theory of Manifolds

    Research period: 2024

  • Research theme:Low Dimensional Topology

    Keyword:Low Dimensional Topology

    Research period: 2024

  • Research theme:High Dimensional Knot Theory

    Keyword:High Dimensional Knot Theory

    Research period: 2024

  • Research theme:Global Singularity Theory

    Keyword:Global Singularity Theory

    Research period: 2024

  • Research theme:Asymptotic Behavior of Generalized Fibonacci Sequences

    Keyword:Asymptotic Behavior of Generalized Fibonacci Sequences

    Research period: 2024

  • Research theme:Mathematical Descriptions of Figures from the Viewpoints of Topology and Differential Geometry

    Keyword:Topology, Differential Geometry, Material Science

    Research period: 2013.4 - 2014.3

  • Research theme:Low Dimensional Topology, Morse Theory and Computer Graphics

    Keyword:low dimensional topology, computer graphics, Morse theory, singularities of differentiable maps

    Research period: 2011.4

  • Research theme:Application of Pure Mathematics to Materials Science

    Keyword:Microstructure of Materials, Geometric Features, Mathematical Modeling

    Research period: 2011.4

  • Research theme:Topology-based visual data analysis for multivariate functions

    Keyword:multivariate function, data analysis, visualization, differential topology

    Research period: 2010.10

  • Research theme:Research on DNA knots

    Keyword:DNA recombination, knot theory, tangle, site-specific recombination enzyme, topoisomerase, cyclic surgery theorem

    Research period: 2007.6

  • Research theme:Research on regular homotopy classes of immersions and embeddings of 3-manifolds into 5-space

    Keyword:immersion, embedding, regular homotopy, spin structure, 3-manifold

    Research period: 2000.4

  • Research theme:Research on contact between curves and 1-parameter orbits in homogeneous spaces

    Keyword:homogeneous space, 1-parameter subgroup, contact, orbit, Lie algebra

    Research period: 1997.4

  • Research theme:Research on generalized Fibonacci sequences.

    Keyword:Fibonacci sequence, recurrence, asymptotic behavior, Binet formula, holomorphic function

    Research period: 1994.4

  • Research theme:Research on high dimensional knots

    Keyword:knot, codimension 1 embedding, product of spheres, fibered knot, Milnor fibration

    Research period: 1994.4

  • Research theme:Research on separation property of codimension 1 maps, Betti number of generic map images, and primary obstruction to topological embeddings.

    Keyword:codimension 1 map, separation property, generic map, Betti number, primary obstruction to topological embeddings

    Research period: 1991.4 - 2001.3

  • Research theme:Research on the topology of stable maps

    Keyword:stable map, elimination of singularities, manifold, characteristic class, differentiable structure

    Research period: 1991.4

Awards

  • 令和6年度科学技術分野の文部科学大臣表彰「科学技術賞」

    2024.4   文部科学省   研究部門、業績:可微分写像の大域的特異点論の研究

  • FY2024 The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology, Awards for Science and Technology

    2024.4  

    Osamu Saeki

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  • 2015年度幾何学賞受賞

    2015.9   日本数学会   安定写像と多様体のトポロジーの研究

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    授賞題目:安定写像と多様体のトポロジーの研究
    授賞理由:佐伯修氏は長年にわたり幅広い分野で活躍されているが,その活動の中核にある安定写像を用いた3あるいは4次元可微分多様体のトポロジーの研究は,大変ユニークで優れたものである.多様体のトポロジーの情報をMorse関数の特異点の指数から引き出すMorse理論は,前世紀半ばに始まり今日までその有用性に陰りはない.一方佐伯氏は,ターゲットの次元を上げることで設定を多様化し,一貫して,特定の型の特異点のみをもつ安定写像の存在・非存在が定義域の多様体のトポロジーや微分構造をどのように反映するか,というよりワイルドな問いに取り組んでいる.その過程で,独自の道具を開発し,コボルディズム理論,特異点論および低次元トポロジーの技法などを駆使している.佐伯氏の一連の仕事は1980年代中盤以降の微分トポロジーの大きな流れとはやや違え,微分トポロジー揺籃期のThom やMilnor の問題意識に立ち返るものであるが,安定写像が主体の研究の中では,ターゲットの次元がソースの次元よりも低い安定写像の微分トポロジーの研究は真に佐伯氏が世界を牽引している.具体的成果の幾つかを挙げる.4次元多様体から3次元多様体への安定写像については,カスプ特異点の解消の障害類の同定,佐久間氏と共同で4 次元位相多様体上の微分構造の違いが読み取れること,また,山本氏と共同で多様体の符号数は特定な型の特異ファイバーの符号付個数と一致,などを示している.4次元多様体から2次元多様体への安定写像については,たとえば定値折り曲げ(definite fold)はいつでも解消できることを示し,3次元多様体から2次元多様体への安定写像に対しては,たとえば各ファイバーの連結成分を1点に潰した空間からの誘導写像であるStein分解を定義し安定写像の分類を行っている.さらにここ数年,佐伯氏のこれまでの研究は低次元トポロジーの研究に基本的な影響を与え始めていることは特筆に価する.Donaldsonらが導入した4次元多様体の特異レフシェッツ束(broken Lefschetz fibration)やTuraev が導入した3次元多様体の影(shadow)は,安定写像を介して理解することが自然に可能であり,佐伯氏が開発した特異点解消やStein 分解といった技法が,今日のその研究に活用されている.また,Gromovも佐伯氏の仕事を一つの根拠に安定写像の位相的複雑度に関してアイデアを提唱している.

  • Geometry Prize FY2015

    2015.9   Mathematical Society of Japan  

    Osamu Saeki

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  • 1996年度日本数学会賞建部賢弘賞受賞

    1996.11   日本数学会   微分可能写像の大域的特異点理論

  • Takebe Katahiro Prize FY1996

    1996.11   Mathematical Society of Japan  

    Osamu Saeki

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Papers

  • Simplifying indefinite fibrations on 4-manifolds Reviewed International journal

    R.I. Baykur, O. Saeki

    Trans. Amer. Math. Soc.   376   3011 - 3062   2023.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1090/tran/8325

  • Reeb spaces of smooth functions on manifolds Reviewed International journal

    Osamu Saeki

    International Mathematics Research Notices   2022   8740 - 8768   2022.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1093/imrn/rnaa301

  • Simplified broken Lefschetz fibrations and trisections of 4-manifolds Invited Reviewed International journal

    R.I. Baykur, O. Saeki

    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA   115 ( 43 )   10894 - 10900   2018.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1073/pnas.1717175115

  • Special generic maps on open 4-manifolds Reviewed International journal

    Osamu Saeki

    Journal of Singularities   1   2010.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    Special generic maps on open 4-manifolds

  • Singular fibers of stable maps and signatures of 4-manifolds Reviewed International journal

    O. Saeki and T. Yamamoto

    Geometry and Topology   2006.4

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Topology of singular fibers of differentiable maps Reviewed International journal

    Osamu Saeki

    Lecture Notes in Mathematics, Springer   2004.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    Topology of singular fibers of differentiable maps

  • Fold maps on 4-manifolds Reviewed International journal

    Osamu Saeki

    Comment. Math. Helv.   78 ( 3 )   627 - 647   2003.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s00014-003-0758-9

  • Special generic maps of 4-manifolds and compact complex analytic surfaces Reviewed International journal

    O. Saeki and K. Sakuma

    Math. Ann.   1999.1

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  • Reeb spaces of smooth functions on manifolds II Reviewed International journal

    Osamu Saeki

    Res. Math. Sci.   2024.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: https://doi.org/10.1007/s40687-024-00436-z

  • Round fold maps on 3-manifolds Reviewed International journal

    Naoki Kitazawa and Osamu Saeki

    Algebraic & Geometric Topology   2023.12

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Special generic maps and Gromoll filtration Reviewed International journal

    Osamu Saeki

    2023.12

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  • ALGEBRAIC KNOTS ASSOCIATED WITH MILNOR FIBRATIONS Reviewed International journal

    Raimundo Araujo dos Santos, Osamu Saeki and Taciana O. Souza

    Journal of Singularities   to appear   2023.1

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Round fold maps of n-dimensional manifolds into (n-1)-dimensional Euclidean space Reviewed International journal

    Naoki Kitazawa and Osamu Saeki

    J. Singularities   26   1 - 12   2023.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.5427/jsing.2023.26a

  • REEB GRAPHS OF SMOOTH FUNCTIONS ON MANIFOLDS

    Osamu Saeki

    2156   2020.5

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  • Unlinking singular loci from regular fibers and its application to submersions Reviewed International journal

    Osamu Saeki

    Journal of Singularities   22   92 - 103   2020.1

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    Repository Public URL: http://hdl.handle.net/2324/4485669

  • Linking between singular locus and regular fibers Reviewed International journal

    O. Saeki

    Journal of Singularities   21   234 - 248   2020.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.5427/jsing.2020.21n

  • Elimination of definite fold II Reviewed International journal

    O. Saeki

    Kyushu Journal of Mathematics   73   239 - 250   2019.10

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    Repository Public URL: http://hdl.handle.net/2324/4399981

  • A signature invariant for stable maps of 3-manifolds into surfaces Reviewed International journal

    O. Saeki

    ROMANIAN JOURNAL OF PURE AND APPLIED MATHEMATICS   64   541 - 563   2019.10

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  • Simplified broken Lefschetz fibrations and trisections of smooth 4-manifolds International journal

    O. Saeki

    2099   42 - 59   2018.12

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  • An algebraic description of screw dislocations in SC and BCC crystal lattices Reviewed International journal

    H. Hamada, S. Matsutani, J. Nakagawa, O. Saeki, M. Uesaka

    Pacific Journal of Mathematics for Industry   10 ( 3 )   2018.8

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    DOI: https://pacific-mathforindustry.springeropen.com/articles/10.1186/s40736-018-0037-8

  • 定値折り目特異点の消去II International journal

    佐伯修

    可微分写像の特異点の局所的研究と大域的研究, 数理解析研究所講究録   2085   55 - 66   2018.8

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Singular fibers of stable maps of manifold pairs and their applications Invited Reviewed International journal

    O. Saeki and T. Yamamoto

    222   259 - 294   2018.4

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  • A Vassiliev type invariant of order one for stable maps of 3-manifolds into surfaces International journal

    O. Saeki

    2049   155 - 172   2017.10

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  • Theory of singular fibers and Reeb spaces for visualization Invited Reviewed International journal

    Osamu Saeki

    3 - 33   2017.4

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  • Singular fibers of stable maps of 3-manifolds with boundary into surfaces and their applications Reviewed International journal

    Osamu Saeki, T. Yamamoto

    Algebraic & Geometric Topology   16   1379 - 1402   2016.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2140/agt.2016.16.1379

  • New examples of Neuwirth--Stallings pairs and non-trivial real Milnor fibrations Reviewed International journal

    Annales de l'Institut Fourier (Grenoble)   66   83 - 104   2016.4

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  • Cobordism group of Morse functions on surfaces with boundary Invited Reviewed International journal

    O. Saeki and T. Yamamoto

    675   279 - 297   2016.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1090/conm/675/13597

  • Topology of manifolds and global theory of singularities Reviewed International journal

    Osamu Saeki

    B55   185 - 203   2016.4

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  • Multivariate topology simplification Reviewed International journal

    Osamu Saeki, A. Chattopadhyay, H. Carr, Zhao Geng, D. Duke

    Computational Geometry   58   1 - 24   2016.4

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  • Interactive visualization for singular fibers of functions f : R^3 -> R^2 Reviewed International journal

    Osamu Saeki, D. Sakurai, H. Carr, Hsiang-Yun Wu, T. Yamamoto, D. Duke, S. Takahashi

    IEEE Transactions on Visualization & Computer Graphics   22 ( 1 )   945 - 954   2016.1

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  • Co-orientable singular fibers of stable maps of 3-manifolds with boundary into surfaces International journal

    O. Saeki and T. Yamamoto

    1948   137 - 152   2015.4

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  • Visualizing multivariate data using singularity theory Invited Reviewed International journal

    Osamu Saeki, S. Takahashi, D. Sakurai, Hsiang-Yun Wu, K. Kikuchi, H. Carr, D. Duke, T. Yamamoto

    51 - 65   2014.4

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    Language:English   Publishing type:Research paper (international conference proceedings)  

    DOI: 10.1007/978-4-431-54907-9

  • Visual data mining based on differential topology: a survey Reviewed International journal

    Osamu Saeki, S. Takahashi

    Pacific Journal of Mathematics for Industry   2014.4

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  • Connected components of regular fibers of differentiable maps Reviewed International journal

    Osamu Saeki, J. T. Hiratuka

    Topics on Real and Complex Singularities, Proceedings of the 4th Japanese-Australian Workshop (JARCS4), Kobe 2011, World Scientific   61 - 73   2014.1

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  • Desingularizing special generic maps Reviewed International journal

    Osamu Saeki, Masamichi Takase

    7   1 - 24   2013.12

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  • Triangulating Stein factorizations of generic maps and Euler characteristic formulas Reviewed International journal

    Osamu Saeki, J. T. Hiratuka

    38   61 - 89   2013.4

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  • Cobordism of exact links Reviewed International journal

    Algebraic and Geometric Topology   12 ( 3 )   2012.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2140/agt.2012.12.1443

  • Fox property for codimension one embeddings of product of three spheres into spheres Reviewed International journal

    L. A. Lucas and O. Saeki

    Algebraic and Geometric Topology   11 ( 5 )   2011.12

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    Fox property for codimension one embeddings of product of three spheres into spheres

    DOI: 10.2140/agt.2011.11.3043

  • Cobordism of algebraic knots defined by Brieskorn polynomials Reviewed International journal

    Tokyo J. Math.   34   2011.12

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    Cobordism of algebraic knots defined by Brieskorn polynomials

  • Curves in homogeneous spaces and their contact with 1-dimensional orbits Reviewed International journal

    V. M. do Nascimento and O. Saeki

    Geometriae Dedicata   154   2011.1

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    Curves in homogeneous spaces and their contact with 1-dimensional orbits

  • A smooth function on a manifold with given Reeb graph Reviewed International journal

    Yasutaka Masumoto and Osamu Saeki

    Kyushu Journal of Mathematics   65   2011.1

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    A smooth function on a manifold with given Reeb graph

    Repository Public URL: http://hdl.handle.net/2324/26893

  • Height functions on surfaces with three critical values Reviewed International journal

    Fumiya Morishita and Osamu Saeki

    Journal of the Mathematical Society of Japan   63   2011.1

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    Height functions on surfaces with three critical values

  • Singular fibers and 4-dimensional cobordism group Reviewed International journal

    Osamu Saeki

    Pacific Journal of Mathematics   248   2010.4

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    Singular fibers and 4-dimensional cobordism group

  • Obstructions to the existence of fold maps Reviewed

    Rustam Sadykov, Osamu Saeki, Kazuhiro Sakuma

    JOURNAL OF THE LONDON MATHEMATICAL SOCIETY-SECOND SERIES   81   338 - 354   2010.4   ISSN:0024-6107 eISSN:1469-7750

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:OXFORD UNIV PRESS  

    We study smooth maps between smooth manifolds with only fold points as their singularities, and clarify the obstructions to the existence of such a map in a given homotopy class for certain dimensions. The obstructions are described in terms of characteristic classes, which arise as Postnikov invariants, and can be interpreted as primary and secondary obstructions to the elimination of certain singularities. We also discuss the relationship between the existence problem of fold maps and that of vector fields of stabilized tangent bundles.

    DOI: 10.1112/jlms/jdp072

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  • Cobordism of Morse maps and its application to map germs Reviewed International journal

    Kazuichi Ikegami and Osamu Saeki

    Mathematical Proceedings of the Cambridge Philosophical Society   2009.2

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  • Surface links and their generic planar projections Reviewed International journal

    O. Saeki and Y. Takeda

    J. Knot Theory Ramifications   2009.1

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    Surface links and their generic planar projections

  • Number of singularities of stable maps Reviewed International journal

    J. T. Hiratuka and O. Saeki

    Journal of Geometry   2008.9

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    Number of singularities of stable maps

  • On 2-knots with total width eight Reviewed International journal

    O. Saeki and Y. Takeda

    Illinois Journal of Mathematics   52   2008.1

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    On 2-knots with total width eight

  • 可微分写像の特異ファイバーのトポロジー Invited Reviewed

    佐伯修

    数学   2008.1

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Cobordism of fibered knots and related topics Reviewed International journal

    V. Blanloeil and O. Saeki

    Advanced Stud. in Pure Math.   2007.2

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  • Singular fibers and characteristic classes Reviewed International journal

    O. Saeki and T. Yamamoto

    Topology Appl.   2007.1

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  • Concordance des noeuds de dimension 4 Reviewed International journal

    V. Blanloeil and O. Saeki

    Canadian Mathematical Bulletin   2007.1

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    Concordance of four dimensional knots

  • Extending generalized Fibonacci sequences and their Binet type formula Reviewed International journal

    M. Rachidi and O. Saeki

    Advances in Difference Equations   2006.7

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  • Stable mapping class groups of 4-manifolds with boundary Reviewed International journal

    Osamu Saeki

    Trans. Amer. Math. Soc.   2006.5

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  • Elimination of definite fold Reviewed International journal

    Osamu Saeki

    Kyushu J. Math.   2006.5

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    Repository Public URL: http://hdl.handle.net/2324/11755

  • Cobordism of Morse functions on surfaces, universal complex of singular fibers, and their application to map germs Reviewed International journal

    Osamu Saeki

    Algebraic and Geometric Topology   2006.4

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  • Open book structures on (n-1)-connected (2n+1)-manifolds Reviewed International journal

    S. Massago, O. M. Neto and O. Saeki

    J. Math. Sci. Univ. Tokyo   2006.4

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  • Morse functions with sphere fibers Reviewed International journal

    Osamu Saeki

    Hiroshima Math. J.   2006.3

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  • Codimension one embeddings of product of three spheres Reviewed International journal

    L. A. Lucas and O. Saeki

    Topology Appl.   146   409 - 419   2005.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.topol.2003.06.005

  • Cobordisme des surfaces plongees dans S^4 Reviewed International journal

    V. Blanloeil et O. Saeki

    Osaka J. Math.   2005.1

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  • Generic smooth maps with sphere fibers Reviewed International journal

    O. Saeki and K. Suzuoka

    J. Math. Soc. Japan   57 ( 3 )   881 - 902   2005.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2969/jmsj/1158241939

  • On periodic (infinity)-generalized Fibonacci sequences

    B Bernoussi, W Motta, M Rachidi, O Saeki

    FIBONACCI QUARTERLY   42 ( 4 )   361 - 367   2004.11   ISSN:0015-0517

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  • Extending the Bernoulli-Euler method for finding zeros of holomorphic functions

    B Bernoussi, M Rachidi, O Saeki

    FIBONACCI QUARTERLY   42 ( 1 )   55 - 65   2004.2   ISSN:0015-0517

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  • Extending Bernoulli-Euler's method for finding zeros of holomorphic functions Reviewed International journal

    B. Bernoussi, M. Rachidi and O. Saeki

    Fibonacci Quarterly   2004.1

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  • Generalized Fibonacci sequences and Ostrowski's theorem Reviewed International journal

    W. Motta, M. Rachidi, and O. Saeki

    Journal of Interdisciplinary Mathematics   2004.1

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  • Pull back relation for non-spherical knots Reviewed International journal

    V. Blanloeil, Y. Matsumoto and O. Saeki

    J. Knot Theory Ramifications   13 ( 5 )   689 - 701   2004.1

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    DOI: 10.1142/S0218216504003378

  • On periodic infinitely generalized Fibonacci sequences Reviewed International journal

    B. Bernoussi, W. Motta, M. Rachidi and O. Saeki

    Fibonacci Quarterly   42 ( 4 )   361 - 367   2004.1

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  • Canceling branch points and cusps on projections of knotted surfaces in 4-space Reviewed International journal

    O. Saeki and Y. Takeda

    Proc. Amer. Math. Soc.   132 ( 10 )   3097 - 3101   2004.1

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    DOI: 10.1090/S0002-9939-04-07487-8

  • Factorial Binet formula and distributional moment formulation of generalized Fibonacci sequences Reviewed International journal

    B. Bernoussi, M. Rachidi and O. Saeki

    Fibonacci Quarterly   42 ( 4 )   320 - 329   2004.1

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  • Cobordism group of Morse functions on surfaces Reviewed

    K. Ikegami and O. Saeki

    J. Math. Soc. Japan   55 ( 4 )   1081 - 1094   2003.1

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    DOI: 10.2969/jmsj/1191418765

  • Self-intersection class for singularities and its application to fold maps Reviewed International journal

    T. Ohmoto, O Saeki, and K. Sakuma

    Trans. Amer. Math. Soc.   355 ( 9 )   3825 - 3838   2003.1

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    DOI: 10.1090/S0002-9947-03-03345-2

  • Embeddings of S-p x S-q x S-r in Sp+q+r+1

    LA Lucas, O Saeki

    PACIFIC JOURNAL OF MATHEMATICS   207 ( 2 )   447 - 462   2002.12   ISSN:0030-8730

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    Let f : S-p x S-q x S-r --> Sp+q+r+1, 2 less than or equal to p less than or equal to q less than or equal to r, be a smooth embedding. In this paper we show that the closure of one of the two components of Sp+q+r+1 -f (S-p x S-q x S-r), denoted by C-1, is diffeomorphic to S-p x S-q x Dr+1 or S-p x Dq+1 x S-r or Dp+1 x S-q x S-r, provided that p + q not equal r or p + q = r with r even. We also show that when p + q = r with r odd, there exist infinitely many embeddings which do not satisfy the above property. We also de ne standard embeddings of S-p x S-q x S-r into Sp+q+r+1 and, using the above result, we prove that if C-1 has the homology of S-p x S-q, then f is standard, provided that q< r.

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  • A theory of concordance for non-spherical 3-knots

    Blanloeil, V, O Saeki

    TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY   354 ( 10 )   3955 - 3971   2002.10   ISSN:0002-9947

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    Consider a closed connected oriented 3-manifold embedded in the 5-sphere, which is, called a 3-knot in this paper. For two such knots, we say that their Seifert forms are spin concordant, if they are algebraically concordant with respect to a diffeomorphism between the 3-manifolds which preserves their spin structures. Then we show that two simple fibered 3-knots are geometrically concordant if and only if they have spin concordant Seifert forms, provided that they have torsion free first homology groups. Some related results are also obtained.

    DOI: 10.1090/S0002-9947-02-03024-6

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  • Diffeomorphisms of a product of spheres and embedded spheres Reviewed International journal

    L. A. Lucas and O. Saeki

    Topology Appl.   2002.1

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  • Cobordism groups of special generic functions and groups of homotopy spheres Reviewed

    Osamu Saeki

    Japanese J. Math.   2002.1

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  • Theory of concordance for non-spherical 3-knots Reviewed International journal

    V. Blanloeil and O. Saeki

    Trans. Amer. Math. Soc.   2002.1

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  • Spin structures and codimension two embeddings of 3-manifolds up to regular homotopy Reviewed International journal

    O. Saeki and M. Takase

    Trans. Amer. Math. Soc.   354 ( 12 )   5049 - 5061   2002.1

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    DOI: 10.1090/S0002-9947-02-03070-2

  • Open books on 5-dimensional manifolds Reviewed

    Osamu Saeki

    Hiroshima Math. J.   2002.1

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  • Regular homotopy classes of immersions of 3-manifolds into 5-space Reviewed International journal

    O. Saeki, A. Szucs, and M. Takase

    Manuscripta Math.   2002.1

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  • Embeddings of S^p X S^q X S^r into S^{p+q+r} Reviewed International journal

    L. A. Lucas and O. Saeki

    Pacific J. Math.   2002.1

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  • Approximation of infinity-generalized Fibonacci sequences and their asymptotic Binet formula

    B Bernoussi, W Motta

    FIBONACCI QUARTERLY   39 ( 2 )   168 - 180   2001.5   ISSN:0015-0517

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  • Maps of manifolds into the plane which lift to standard embeddings in codimension two Reviewed International journal

    V. L. Carrara, M. A. S. Ruas, and O. Saeki

    Topology Appl.   2001.1

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  • A primary obstruction to topological embeddings and its applications Reviewed International journal

    C. Biasi, J. Daccach and O. Saeki

    Manuscripta Math.   2001.1

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  • Approximation of infinitely generalized Fibonacci sequences and their asymptotic Binet formula Reviewed International journal

    B. Bernoussi, W. Motta, M. Rachidi and O. Saeki

    Fibonacci Quart.   2001.1

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  • A primary obstruction to topological embeddings for maps between generalized manifolds Reviewed International journal

    C. Biasi, J. Daccach and O. Saeki

    Pacific J. Math.   2001.1

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  • Euler characteristic formulas for simplicial maps Reviewed International journal

    J. J. Nuno Ballesteros and O. Saeki

    Math. Proc. Camb. Phil. Soc.   2001.1

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  • Convergent infinity-generalized Fibonacci sequences

    W Motta, M Rachidi, O Saeki

    FIBONACCI QUARTERLY   38 ( 4 )   326 - 333   2000.8   ISSN:0015-0517

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  • Real Seifert form determines the spectrum for semiquasihomogeneous hypersurface singularities in C^3 Reviewed

    Osamu Saeki

    J. Math. Soc. Japan   2000.1

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  • Rubinstein-Scharlemann graphic of 3-manifold as the discriminant set of a stable map Reviewed International journal

    T. Kobayashi and O. Saeki

    Pacific J. Math.   2000.1

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  • On R-bordism of maps and obstruction to topological embeddings Reviewed

    C. Biasi, J. Daccach and O. Saeki

    Osaka J. Math.   2000.1

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  • Convergent infinitely generalized Fibonacci sequences Reviewed International journal

    W. Motta, M. Rachidi, and O. Saeki

    Fibonacci Quarterly   2000.1

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  • A two colour theorem and the fundamental class of a polyhedron Reviewed International journal

    W. Motta and O. Saeki

    "Real and complex singularities", ed. J. W. Bruce and F. Tari, Proceedings of the 5th Workshop on Real and Complex Singularities, Brazil, CHAPMAN & HALL/CRC Research notes in Math.   2000.1

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  • Real Seifert form determines the spectrum for semiquasihomogeneous hypersurface singularities in C3

    Osamu Saeki

    Journal of the Mathematical Society of Japan   52 ( 2 )   409 - 431   2000   ISSN:1881-1167

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    We show that the real Seifert form determines the weights for nondegenerate quasihomogeneous polynomials in C3. Consequently the real Seifert form determines the spectrum for semiquasihomogeneous hypersurface singularities in C3. As a corollary, we obtain the topological invariance of weights for nondegenerate quasihomogeneous polynomials in C3, which has already been proved by the author [Sae1] and independently by Xu and Yau [Ya1], [Ya2], [XY1], [XY2]. The method in this paper is totally different from their approaches and gives some new results, as corollaries, about holomorphic function germs in C3 which are connected by μ-constant deformations to nondegenerate quasihomogeneous polynomials. For example, we show that two semiquasihomogeneous functions of three complex variables have the same topological type if and only if they are connected by a μ-constant deformation. © 2000 Applied Probability Trust.

    DOI: 10.2969/jmsj/05220409

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  • The Rubinstein-Scharlemann graphic of a 3-manifold as the discriminant set of a stable map

    Tsuyoshi Kobayashi, Osamu Saeki

    Pacific Journal of Mathematics   195 ( 1 )   101 - 156   2000   ISSN:0030-8730

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    We show that Rubinstein-Scharlemann graphics for 3-manifolds can be regarded as the images of the singular sets (: discriminant set) of stable maps from the 3-manifolds into the plane. As applications of our understanding of the graphic, we give a method for describing Heegaard surfaces in 3-manifolds by using arcs in the plane, and give an orbifold version of Rubinstein-Scharlemann's setting. Then by using this setting, we show that every genus one 1-bridge position of a nontrivial two bridge knot is obtained from a 2-bridge position in a standard manner.

    DOI: 10.2140/pjm.2000.195.101

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  • On infinity-generalized Fibonacci sequences

    W Motta, M Rachidi, O Saeki

    FIBONACCI QUARTERLY   37 ( 3 )   223 - 232   1999.8   ISSN:0015-0517

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  • Stable maps between 4-manifolds and elimination of their singularities Reviewed International journal

    O. Saeki and K. Sakuma

    J. London Math. Soc.   1999.1

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  • Theory of fibered 3-knots in S^5 and its applications Reviewed

    Osamu Saeki

    J. Math. Sci. Univ. Tokyo   1999.1

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  • Gluck surgery along a 2-sphere in a 4-manifold is realized by surgery along a projective plane Reviewed International journal

    A. Katanaga, O. Saeki, M. Teragaito, and Y. Yamada

    Michigan Math. J.   1999.1

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  • On punctured 3-manifolds in 5-sphere Reviewed

    Osamu Saeki

    Hiroshima Math. J.   1999.1

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  • On algebraic unknotting numbers of knots Reviewed

    Osamu Saeki

    Tokyo J. Math.   1999.1

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  • On infinitely generalized Fibonacci sequences Reviewed International journal

    W. Motta, M. Rachidi, and O. Saeki

    Fibonacci Quarterly   1999.1

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  • Elimination of singularities: Thom polynomial and beyond Reviewed International journal

    O. Saeki and K. Sakuma

    Singularity Theory   1999.1

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  • On the Betti number of the union of two generic map images Reviewed International journal

    C. Biasi, A. K. M. Libardi, and O. Saeki

    Topology Appl.   1999.1

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  • Global theory of singularities of differentiable mappings: present status and prospects

    SAEKI O.

    Sugaku Expositions   12   21 - 37   1999

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  • Embeddings of quaternion space in S-4

    A Katanaga, O Saeki

    JOURNAL OF THE AUSTRALIAN MATHEMATICAL SOCIETY SERIES A-PURE MATHEMATICS AND STATISTICS   65   313 - 325   1998.12   ISSN:0263-6115

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    Consider a (real) projective plane which is topologically locally flatly embedded in S-4. It is known that it always admits a 2-disk bundle neighborhood, whose boundary is homeomorphic to the quaternion space Q, the total space of the nonorientable S-1-bundle over RP2 with Euler number +/-2, with fundamental group isomorphic to the quaternion group of order eight. Conversely let f : Q --> S-4 be an arbitrary locally flat topological embedding. Then we show that the closure of each connected component of S-4 - f(Q) is always homeomorphic to the exterior of a topologically locally flatly embedded projective plane in S4. We also show that, for a large class of embedded projective planes in S-4, a pair of exteriors of such embedded projective planes is always realized as the closures of the connected components of S-4 - f(Q) for some locally flat topological embedding f : Q --> S-4.

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  • On transversality with deficiency and a conjecture of Sard

    C Biasi, O Saeki

    TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY   350 ( 12 )   5111 - 5122   1998.12   ISSN:0002-9947

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    Let f : M --> N be a C-tau map between C-tau manifolds (tau greater than or equal to 1) and K a C-tau manifold. In this paper, by using the Sard theorem, we study the topological properties of the space of C-tau maps g : K --> N which satisfy a certain transversality condition with respect to f in a weak sense. As an application, by considering the case where K is a point, we obtain some new results about the topological properties of f(R-q(f)), where R-q(f) is the set of points of M where the rank of the differential of f is less than or equal to q. In particular, we show a result about the topological dimension of f(R-q(f)), which is closely related to a conjecture of Sard concerning the Hausdorff measure of f(R-q(f)).

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  • On special generic maps into R-3

    O Saeki, K Sakuma

    PACIFIC JOURNAL OF MATHEMATICS   184 ( 1 )   175 - 193   1998.5   ISSN:0030-8730

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    Let f : M --> R-p be a smooth map of a closed n-dimensional manifold M into R-p (n greater than or equal to p) which has only definite fold singularities as its singular points. Such a map is called a special generic snap, which was first defined by Burlet and de Rham for (n,p) = (3,2) and later extended to general (n,p) by Porto, Furuya, Sakuma and Saeki. In this paper, we study the global topology of such maps for p = 3 and give various new results, among which are a splitting theorem for manifolds admitting special generic maps into R-3 and a classification theorem of 4- and B-dimensional manifolds with free fundamental groups admitting special generic maps into R-3. Furthermore, we study the topological structure of the surfaces which arise as the singular set of a special generic map into R-3 On a given manifold.

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  • On topological invariance of weights for quasihomogeneous polynomials Reviewed International journal

    Osamu Saeki

    Pitman Research Notes in Mathematics Series   1998.1

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  • Embeddings of quaternion space in S^4 Reviewed International journal

    A. Katanaga and O. Saeki

    J. Austral. Math. Soc.   1998.1

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  • Transversality with deficiency and a conjecture of Sard Reviewed International journal

    C. Biasi and O. Saeki

    Trans. Amer. Math. Soc.   1998.1

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  • On special generic maps into R^3 Reviewed International journal

    O. Saeki and K. Sakuma

    Pacific J. Math.   1998.1

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  • Maps with only Morin singularities and the Hopf invariant one problem Reviewed International journal

    O. Saeki and K. Sakuma

    Math. Proc. Camb. Phil. Soc.   1998.1

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  • On the number of singularities of a generic surface with boundary in a 3-manifold Reviewed

    J. J. Nuno Ballesteros and O. Saeki

    Hokkaido Math. J. 27   1998.1

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  • On weighted r-generalized Fibonacci sequences

    F Dubeau, W Motta, M Rachidi, O Saeki

    FIBONACCI QUARTERLY   35 ( 2 )   102 - 110   1997.5   ISSN:0015-0517

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  • On the Betti number of the image of a generic map

    C Biasi, O Saeki

    COMMENTARII MATHEMATICI HELVETICI   72 ( 1 )   72 - 83   1997   ISSN:0010-2571

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    Let f : M --> N be a differentiable map of a closed m-dimensional manifold into an (m + k)-dimensional manifold with k > 0. We show, assuming that f is generic in a certain sense, that f is an embedding if and only if the (m - k + 1)-th Betti numbers with respect to the Cech homology of M and f(M) coincide, under a certain condition on the stable normal bundle of f. This generalizes the authors' previous result for immersions with normal crossings [BS1]. As a corollary. we obtain the converse of the Jordan-Brouwer theorem for codimension-l generic maps, which is a generalization of the results of [BR, BMS1, BMS2, Sael] for immersions with normal crossings.

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  • On the self-intersection set and the image of a generic map

    C Biasi, O Saeki

    MATHEMATICA SCANDINAVICA   80 ( 1 )   5 - 24   1997   ISSN:0025-5521

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    Let f: M --> N be a continuous map of a closed m-dimensional manifold into an n-dimensional manifold with k = n - m > 0. We define a primary obstruction to the existence of a homotopy between f and a smooth embedding which is related to the self-intersection set of a generic map homotopic to f. When f is a smooth generic map in the sense of [9], we show that f is a smooth embedding if and only if the primary obstruction vanishes and the (m - k + 1)th Betti numbers of M and the image f(M) coincide, generalizing the authors' previous result [4] for immersions with normal crossings. As a corollary we obtain a converse of the Jordan-Brouwer theorem for codimension-1 generic maps, which is a generalization of the results in [3, 1, 2, 20] for immersions with normal crossings. Using generic maps, we show the vanishing of the primary obstruction for injective maps. Furthermore, for non-generic smooth maps, we find a homology class in the closure of the self-intersection set which corresponds to the primary obstruction.

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  • On bordism invariance of an obstruction to topological embeddings

    C Biasi, O Saeki

    OSAKA JOURNAL OF MATHEMATICS   33 ( 3 )   729 - 735   1996.9   ISSN:0030-6126

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  • Immersed n-manifolds in R(2n) and the double points of their generic projections into R(2n-1)

    O Saeki, K Sakuma

    TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY   348 ( 7 )   2585 - 2606   1996.7   ISSN:0002-9947

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    We give two congruence formulas concerning the number of nontrivial double point circles and arcs of a smooth map with generic singularities - the Whitney umbrellas - of an n-manifold into R(2n-1), which generalize the formulas by Szucs for an immersion with normal crossings. Then they are applied to give a new geometric proof of the congruence formula due to Mahowald and Lames concerning the normal Euler number of an immersed n-manifold in R(2n). We also study generic projections of an embedded n-manifold in R(2n) into R(2n-1) and prove an elimination theorem of Whitney umbrella points of opposite signs, which is a direct generalization of a recent result of Carter and Saito concerning embedded surfaces in R(4). The problem of lifting a map into R(2n-1) to an embedding into R(2n) is also studied.

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  • Simplifying stable mappings into the plane from a global viewpoint

    M Kobayashi, O Saeki

    TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY   348 ( 7 )   2607 - 2636   1996.7   ISSN:0002-9947

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    Let f : M --> R(2) be a C-infinity Stable map of an n-dimensional manifold into the plane. The main purpose of this paper is to define a global surgery operation on f which simplifies the configuration of the critical value set and which does not change the diffeomorphism type of the source manifold M. For this purpose, we also study the quotient space W-f of f, which is the space of the connected components of the fibers of f, and are completely determine its local structure for arbitrary dimension n of the source manifold M. This is a completion of the result of Kushner, Levine and Porto for dimension 3 and that of Furuya for orientable manifolds of dimension 4. We also pay special attention to dimension 4 and obtain a simplification theorem for stable maps whose regular fiber is a torus or a 2-sphere, which is a refinement of a result of Kobayashi.

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  • Simple stable maps of 3-manifolds into surfaces

    O Saeki

    TOPOLOGY   35 ( 3 )   671 - 698   1996.7   ISSN:0040-9383

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    DOI: 10.1016/0040-9383(95)00034-8

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  • 微分可能写像の大域的特異点理論の現状と展望

    佐伯修

    数学   Vol.48   385 - 399   1996

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  • A generalization of Alexander's torus theorem to higher dimensions and an unknotting theorem for S^p \times S^q embedded in S^{p+q+2}

    Laercio Aparecido Lucas, Oziride Manzoli Neto, Osamu Saeki

    Kobe J. Math.   13 ( 2 )   145 - 165   1996   ISSN:0289-9051

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  • A converse of the Jordan-Brouwer theorem for quasi-regular immersions

    Illinois J. Math.   Vol.40, pp.108-114   1996

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  • ON THE BETTI NUMBER OF THE IMAGE OF A CODIMENSION-K IMMERSION WITH NORMAL CROSSINGS

    C BIASI, O SAEKI

    PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY   123 ( 11 )   3549 - 3554   1995.11   ISSN:0002-9939

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    Let f: M --> N be a codimension- k immersion with normal crossings of a closed m-dimensional manifold. We show that f is an embedding if and only if the (m - k + 1)-th Betti numbers of M and f(M) coincide, under a certain condition on the normal bundle of f.

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  • SEPARATION BY A CODIMENSION-1 MAP WITH A NORMAL CROSSING POINT

    O SAEKI

    GEOMETRIAE DEDICATA   57 ( 3 )   235 - 247   1995.10   ISSN:0046-5755

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    Let f: M(n-1) --> N-n be an immersion with normal crossings of a closed orientable (n - 1)-manifold into an orientable n-manifold. We show, under a certain homological condition, that if f has a multiple point of multiplicity m, then the number of connected components of N - f(M) is greater than or equal to m + 1, generalizing results of Biasi and Romero Fuster (Illinois J. Math. 36 (1992), 500-504) and Biasi, Motta and Saeki (Topology Appl. 52 (1993), 81-87). In fact, this result holds more generally for every codimension-l continuous map with a normal crossing point of multiplicity m. We also give various geometrical applications of this theorem, among which is an application to the topology of generic space curves.

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  • STABLE MAPS OF 3-MANIFOLDS INTO THE PLANE AND THEIR QUOTIENT-SPACES

    W MOTTA, P PORTO, O SAEKI

    PROCEEDINGS OF THE LONDON MATHEMATICAL SOCIETY   71   158 - 174   1995.7   ISSN:0024-6115

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:LONDON MATH SOC  

    We study stable maps f: M --> R(2) of closed orientable 3-manifolds M into the plane using their quotient spaces, which are defined to be the spaces of the connected components of f-fibres and which are known to be 2-dimensional polyhedra. We show that every 3-manifold admits a stable map whose quotient space is homeomorphic to that of a stable map of S-3. We also deduce a Morse-type inequality for stable maps, which implies that there is no universal stable map of S-3 in the above sense. Certain moves in the quotient spaces corresponding to generic homotopies of stable maps are also studied.

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  • REMARKS ON THE TOPOLOGY OF FOLDS

    S KIKUCHI, O SAEKI

    PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY   123 ( 3 )   905 - 908   1995.3   ISSN:0002-9939

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    We give some necessary conditions for a closed manifold to admit a smooth map into an Euclidean space with only fold singular points.

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  • A REMARK ON THE SEPARATION BY IMMERSIONS IN CODIMENSION-1

    C BIASI, W MOTTA, O SAEKI

    TOPOLOGY AND ITS APPLICATIONS   61 ( 2 )   179 - 186   1995.2   ISSN:0166-8641

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELSEVIER SCIENCE BV  

    Let f:M(n-1) --> N(n) be an immersion with normal crossings from a compact connected (n - 1)-manifold M into a connected, open or compact n-manifold N, where M and N can have boundaries. In this paper, we give a necessary and sufficient condition for f to be an embedding using the number of connected components of N - f(M). We also obtain an estimate from the above for the number of connected components of N - f(M) for f with only double points as its self-intersection points.

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  • Constructing generic smooth maps of a manifold into a surface with prescribed singular loci

    Ann. Inst. Fourier   45   1135 - 1162   1995

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  • Studying the Topology of Morin Singularities from a Global Viewpoint

    Osamu Saeki

    Mathematical Proceedings of the Cambridge Philosophical Society   117 ( 2 )   223 - 235   1995   ISSN:1469-8064

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    Language:English   Publishing type:Research paper (scientific journal)  

    Let f : M→N be a smooth map of a closed n-manifold into a p-manifold (n ≥p) having only Morin singularities [17]. We study the topology of such a map and obtain a modulo 2 congruence formula involving the Euler characteristics of M, N, the singular sets and the regular fibres of f. We also consider applications of this formula to the existence problem of maps having only fold singular points. Stable maps into 3-manifolds are also studied and we obtain a modulo 2 congruence formula involving the swallow tails and the number of triple points of the discriminant set. © 1995, Cambridge Philosophical Society. All rights reserved.

    DOI: 10.1017/S0305004100073072

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  • Singular surfaces in 3-manifolds, the tangent developable of a space curve and the dual of an immersed surface in 3-space

    Pitman Research Notes in Mathematics Series   333   49 - 64   1995

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  • On Milnor's curvature-torsion invariant for knots and links

    Noriyuki Honma, Osamu Saeki

    Kobe J. Math.   11 ( 2 )   225 - 239   1994   ISSN:0289-9051

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    Language:English   Publisher:Kobe University  

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  • Stable maps and links in 3-manifolds

    Kodai Math. J.   17   518 - 529   1994

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  • A NOTE ON SEPARATION PROPERTIES OF CODIMENSION-1 IMMERSIONS WITH NORMAL CROSSINGS

    C BIASI, W MOTTA, O SAEKI

    TOPOLOGY AND ITS APPLICATIONS   52 ( 1 )   81 - 87   1993.8   ISSN:0166-8641

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELSEVIER SCIENCE BV  

    Let f:M(n-1) --> N(n) be an immersion with normal crossings between closed connected manifolds. The article is concerned with the problem of separation of N by f(M). The main result of this paper is a converse of the Jordan-Brouwer Theorem, under the hypothesis that M is oriented and H1(N; Z2) = 0. More precisely, with the above hypothesis, f is an embedding if and only if N - f(M) has two connected components.

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  • Simple stable maps of $3$-manifolds into surfaces II

    Saeki Osamu

    J. Fac. Sci. Univ. Tokyo   Vol.40 ( 1 )   73 - 124   1993   ISSN:0040-8980

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    Language:English   Publisher:Faculty of Science, The University of Tokyo  

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  • Topology of special generic maps of manifolds into Euclidean spaces

    Topology Appl.   49   265 - 293   1993

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  • Topology of special generic maps into R^3

    SAEKI O.

    Mat. Contem.   Vol.5   161 - 186   1993

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  • Notes on the topology of folds

    Osamu Saeki

    Journal of the Mathematical Society of Japan   44 ( 3 )   551 - 566   1992   ISSN:1881-1167

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2969/jmsj/04430551

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  • On 4-manifolds homotopy equivalent to the 2-sphere

    Adv. Stud. Pure Math.   20   301 - 330   1992

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  • An estimate for the unknotting numbers of torus knots

    Topology Appl.   38   293 - 299   1991

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  • Simply connected 4-manifolds of second betti number 1 bounded by homology lens spaces

    Osamu Saeki

    Journal of the Mathematical Society of Japan   41 ( 4 )   593 - 606   1989   ISSN:1881-1167

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2969/jmsj/04140593

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  • Topological types of complex isolated hypersurface singularities

    Kodai Math. J.   12   23 - 29   1989

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  • Cobordism classification of knotted homology 3-spheres in S^5

    Osaka J. Math.   25   213 - 222   1988

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  • Topological invariance of weights for weighted homogeneous isolated singularities in C^3

    Proc. Amer. Math. Soc.   103   905 - 909   1988

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  • Knotted homology 3-spheres in S^5

    J. Math. Soc. Japan   40   65 - 75   1988

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  • Knotted homology spheres defined by weighted homogeneous polynomials

    J. Fac. Sci. Univ. Tokyo   34   43 - 50   1987

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  • On simple fibered knots in S5 and the existence of decomposable algebraic 3-knots

    Osamu Saeki

    Commentarii Mathematici Helvetici   62 ( 1 )   587 - 601   1987   ISSN:1420-8946

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/BF02564464

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Books

  • Topology of Singular Fibers of Differentiable Maps

    Osamu Saeki( Role: Sole author)

    Springer Verlag  2004.1 

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    Responsible for pages:Lecture Notes in Math., Vol. 1854, Springer-Verlag, 2004.   Language:English   Book type:Scholarly book

  • 複素超曲面の特異点

    佐伯修,佐久間一浩( Role: Joint translator)

    シュプリンガー東京  2003.1 

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    Language:Japanese   Book type:Scholarly book

  • 特性類講義

    佐伯修,佐久間一浩( Role: Joint translator)

    シュプリンガー東京  2001.1 

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    Language:Japanese   Book type:Scholarly book

  • 幾何学と特異点

    泉屋周一,佐野貴志,佐伯修,佐久間一浩( Role: Joint author)

    共立出版  2001.1 

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    Language:Japanese   Book type:Scholarly book

  • 2023度採択分 九州大学マス・フォア・インダストリ研究所 共同利用研究集会「WORKSHOP on Mathematics for Industry 2023--Basis of Mathematics in nanomedicine structures and life sensing」

    ( Role: Edit)

    九州大学マス・フォア・インダストリ研究所  2024.3 

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    Responsible for pages:MIレクチャーノート,Vol.95   Language:English   Book type:Scholarly book

  • 材料科学における幾何と代数 IV

    松谷茂樹, 緒方勇太, 落合啓之, 加葉田雄太朗, 佐伯修, 濱田裕康, 松江要( Role: Edit)

    九州大学マス・フォア・インダストリ研究所  2023.11 

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    Responsible for pages:マス・フォア・インダストリ研究,No.~26   Language:Japanese   Book type:Scholarly book

  • Proceedings of Forum "Math-for-Industry" 2021 -Mathematics for Digital Economy-

    Osamu Saeki, Ho Tu Bao, Shizuo Kaji, Kenji Kajiwara, Nguyen Ha Nam, Ta Hai Tung, Melanie Roberts, Masato Wakayama, Le Minh Ha and Philip Broadbridge( Role: Edit)

    2022.3 

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    Language:English   Book type:Scholarly book

  • Fiber Topology Meets Applications 2

    Daisuke Sakurai, Osamu Saeki, Shigeo Takahashi, Hamish Carr, Takahiro Yamamoto and Naoki Hamada( Role: Edit)

    2022.3 

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    Language:English   Book type:Scholarly book

  • 2020年度採択分 九州大学マス・フォア・インダストリ研究所 共同利用研究集会 進化計算の数理

    濱田直希,穴井宏和,梅田裕平,千葉一永,佐藤寛之,能島裕介,加葉田雄太朗,一木俊助,早野健太,佐伯修( Role: Edit)

    九州大学マス・フォア・インダストリ研究所  2022.2 

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  • 材料科学における 幾何と代数 III

    松谷 茂樹,落合 啓之,井上 和俊,小磯 深幸,佐伯 修,白井 朋之,垂水 竜一,内藤 久資,中川 淳一,濵田 裕康,松江 要,加葉田 雄太朗( Role: Edit)

    九州大学マス・フォア・インダストリ研究所  2022.1 

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    Language:Japanese   Book type:Scholarly book

  • Big Data Analysis, AI, Fintech, Math in Finances and Economics

    Jin Cheng, Xu Dinghua, Osamu Saeki and Tomoyuki Shirai( Role: Edit)

    Springer Nature  2022.1 

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    Language:English   Book type:Scholarly book

  • Proceedings of the Forum "Math-for-Industry" 2019 -Mathematics for the Primary Industries and the Environment-

    Robert McKibbin, Graeme Wake, Osamu Saeki( Role: Edit)

    Springer  2022.1 

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    Language:English   Book type:Scholarly book

  • 距離空間のトポロジー : 幾何学的視点から

    川村 一宏, 石川 剛郎 , 大槻 知忠, 佐伯 修 , 三松 佳彦

    共立出版  2022    ISBN:9784320115019

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    Language:Japanese  

    CiNii Books

  • 材料科学における 幾何と代数 II

    松谷茂樹, 井上和俊, 落合啓之, 佐伯 修, 垂水竜一, 内藤久資, 中川淳一, 濵田裕康, 松江 要( Role: Edit)

    九州大学マス・フォア・インダストリ研究所  2021.11 

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    Language:Japanese   Book type:Scholarly book

  • Fiber Topology Meets Applications

    Daisuke Sakurai, Shigeo Takahashi, Naoki Hamada, Osamu Saeki, Hamish Carr, Takahiro Yamamoto( Role: Edit)

    2021.3 

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    Language:Japanese   Book type:Scholarly book

  • 材料科学における 幾何と代数 I

    松谷茂樹,井上和俊,加葉田雄太朗,佐伯 修,垂水竜一,内藤久資,中川淳一,濵田裕康( Role: Edit)

    九州大学マス・フォア・インダストリ研究所  2020.11 

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    Language:Japanese   Book type:Scholarly book

  • Proceedings of the international conference “Geometric and Algebraic Singularity Theory” In honor of Goo Ishikawa on the occasion of his 60th Birthday

    ( Role: Edit)

    2020.1 

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    Responsible for pages:Journal of Singularities, Vol.21   Language:English   Book type:Scholarly book

  • 結晶の界面,転位,構造の先進数理解析

    松谷 茂樹、佐伯 修、中川 淳一、濵田 裕康、富安 亮子( Role: Edit)

    九州大学マス・フォア・インダストリ研究所  2019.12 

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  • 結晶転位の先進数理解析

    松谷茂樹,佐伯修,中川淳一,濵田裕康,上坂正晃( Role: Edit)

    九州大学マス・フォア・インダストリ研究所  2019.1 

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    Responsible for pages:マス・フォア・インダストリ研究,No.11   Language:Japanese   Book type:Scholarly book

  • 結晶の界面、転位、構造の数理

    松谷茂樹,佐伯修,中川淳一,田上大助,上坂正晃,Pierluigi Cesana,濵田裕康( Role: Edit)

    九州大学マス・フォア・インダストリ研究所  2017.4 

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    Responsible for pages:MIレクチャーノート,Vol.77   Language:Japanese   Book type:Scholarly book

  • The Role and Importance of Mathematics in Innovation

    B. Anderssen, P. Broadbridge, Y. Fukumoto, N. Kamiyama, Y. Mizoguchi, K. Polthier, and O. Saeki( Role: Edit)

    Springer  2017.4 

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    Responsible for pages:Mathematics for Industry, Vol. 25   Language:English   Book type:Scholarly book

  • School on Real and Complex Singularities in Sao Carlos, 2012

    ( Role: Edit)

    2016.8 

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    Language:English   Book type:Scholarly book

  • 結晶のらせん転位の数理

    松谷茂樹,佐伯修,中川淳一,上坂正晃,濱田裕康( Role: Edit)

    九州大学マス・フォア・インダストリ研究所  2016.4 

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    Responsible for pages:マス・フォア・インダストリ研究,No.6   Language:Japanese   Book type:Scholarly book

  • Singularities in Geometry and Topology 2011

    ( Role: Edit)

    2015.5 

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    Language:English   Book type:Scholarly book

  • A Mathematical Approach to Research Problems of Science and Technology

    OSAMU SAEKI, Ryuei Nishii, Miyuki Koiso, OCHIAI HIROYUKI, Kanzo OKADA, Tomoyuki Shirai, Shingo Saito, Shin-ichiro Ei( Role: Joint author)

    Springer  2014.7 

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    Language:English   Book type:Scholarly book

  • 多様体の広がり

    深谷賢治等26名( Role: Joint author)

    サイエンス社  2008.4 

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    Language:Japanese   Book type:General book, introductory book for general audience

  • 技術に生きる現代数学

    若山正人、二宮嘉行、谷口説男、金子昌信、福本康秀、佐伯修( Role: Joint author)

    岩波書店  2008.2 

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    Language:Japanese   Book type:General book, introductory book for general audience

  • Proceedings of the XI Brazilian Topology Meeting

    S. Firmo, D.L. Goncalves and O. Saeki( Role: Edit)

    World Scientific  2000.1 

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    Language:English   Book type:Scholarly book

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Presentations

  • Special generic maps I, II, Singular fibers of generic maps I, II, Simplifying generic maps I, II,(連続6講演) Invited International conference

    2022.10 

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    Event date: 2022.10

    Language:English   Presentation type:Oral presentation (general)  

    Venue:京都大学数理解析研究所   Country:Japan  

  • ジェネリックな可微分写像の大域的特異点論 Invited

    佐伯修

    2022年度秋季総合分科会  2022.9 

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:北海道大学   Country:Japan  

    One of the most popular methods to study the topological structure of a given differentiable manifold is to use Morse functions. Such functions can be regarded as generic differentiable maps into the real line. Then, what happens if we consider generic maps into general dimensional Euclidean spaces or manifolds? This might have been a motivation of Whitney or Thom around the middle of the 20th century for studying singularities of differentiable maps between manifolds. In this talk, following such an idea, the speaker surveyed some studies of structures of manifolds by using generic differentiable maps, and some global studies of generic differentiable
    maps with singularities themselves, including recent developments.

  • Simplified broken Lefschetz fibrations and trisections of 4-manifolds Invited

    2018.5 

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    Event date: 2018.5 - 2018.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 安定写像と多様体のトポロジー Invited

    佐伯 修

    日本数学会2015年度秋季総合分科会  2015.9 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都産業大学   Country:Japan  

  • Topology of singular fibers for visualization Invited International conference

    Topology-Based Methods in Visualization 2015  2015.5 

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    Event date: 2015.5

    Language:English   Presentation type:Oral presentation (general)  

    Country:Germany  

    Topology of singular fibers for visualization

    Other Link: http://imi.kyushu-u.ac.jp/~saeki/pdf/saeki220.pdf

  • Special generic maps on open 4-manifolds

    Osamu Saeki

    2009.12 

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    Event date: 2009.12

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Singular fibers of differentiable maps and 4-dimensional cobordism group

    2009.6 

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    Event date: 2009.6

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Broken Lefschetz fibrations and their moves Invited International conference

    Geometry and topology of smooth 4-manifolds  2013.6 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:Germany  

  • Universal complex of singular fibers and cobordism of singular maps

    2004.10 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Universal complex of singular fibers and cobordism of singular maps

  • Topology of manifolds and singularities of differentiable maps

    2004.11 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Topology of manifolds and singularities of differentiable maps

  • Introduction to singular fibers of differentiable maps: theory and examples Invited

    2005.6 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Introduction to singular fibers of differentiable maps: theory and examples

  • Theory of singular fibers of differentiable maps and characteristic classes of surface bundles I

    2005.9 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Theory of singular fibers of differentiable maps and characteristic classes of surface bundles I

  • Generic smooth maps with sphere fibers

    2005.10 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Generic smooth maps with sphere fibers

  • Elimination of definite fold

    Generic Differential Geometry --Singularities and Differential Geometry--  2005.11 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Elimination of definite fold

  • Singular fibers of differentiable maps and characteristic classes of surface bundles

    2006.2 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Singular fibers of differentiable maps and characteristic classes of surface bundles

  • Morse functions with sphere fibers

    2006.11 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Morse functions with sphere fibers

  • Total width が 8 以下の2次元結び目について

    佐伯修

    4次元トポロジー研究集会  2007.1 

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    Presentation type:Oral presentation (general)  

    Venue:広島大学   Country:Japan  

  • 特異点と特性類 --- 具体例の果たす重要な役割 Invited

    佐伯修

    日本数学会 2007 年度秋季総合分科会  2007.9 

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    Presentation type:Oral presentation (invited, special)  

    Venue:東北大学   Country:Japan  

  • Cobordism of Morse maps and its application to map germs International conference

    The second Japanese-Australian Workshop on Real and Complex Singularities  2007.11 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Cobordism of Morse maps and its application to map germs

  • トポロジーを用いてデータ構造を可視化する Invited

    佐伯修

    数学と脳科学の連携に向けたワークショップ  2023.12 

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    Event date: 2023.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学日本橋サテライト   Country:Japan  

  • 微分トポロジーを用いたデータの可視化 Invited

    佐伯修

    数理工学センター(MCME)セミナー  2023.12 

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    Event date: 2023.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:武蔵野大学有明キャンパス4号館303教室   Country:Japan  

  • Reeb spaces of smooth functions on manifolds International conference

    Osamu Saeki

    7th International Workshop on Singularities in Geometry and applications, Valencia VII  2023.11 

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    Event date: 2023.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Brazil  

  • Special generic maps and Gromoll filtration Invited International conference

    Osamu Saeki

    Workshop on Algebraic Topology and Applications, Homenagem ao Prof. Oziride Manzoli Neto  2023.11 

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    Event date: 2023.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Brazil  

  • Generalization of Reeb spaces and application to data visualization International conference

    Osamu Saeki

    2023.9 

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    Event date: 2023.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Poland  

  • Viewing manifolds through singularities, 数学に導かれて Invited

    佐伯修

    おいでMath談話会 (Online)  2023.7 

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    Event date: 2023.7

    Language:English   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • Round fold maps of n-dimensional manifolds into (n − 1)-dimensional Euclidean space Invited International conference

    2023.3 

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    Event date: 2023.3

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Heidelberg University   Country:Germany  

  • Generalization of Reeb Spaces and Application to Data Visualization International conference

    Osamu Saeki

    2023 SIAM Conference on Computational Science and Engineering  2023.3 

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    Event date: 2023.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:Netherlands  

  • Differentiable maps on links of complex isolated singularities Invited

    2023.2 

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    Event date: 2023.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Institute of Mathematics for Industry: its uniqueness, strength and prospects Invited International conference

    Osamu Saeki

    The 6th RIKEN-IMI-ISM-NUS-ZIB-MODAL-NHR Workshop on Advances in Classical and Quantum Algorithms for Optimization and Machine Learning  2022.9 

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    Event date: 2022.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Topology of Reeb spaces of smooth functions on manifolds Invited International conference

    Osamu Saeki

    17th International Workshop on Real and Complex Singularities  2022.7 

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    Event date: 2022.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Brazil  

  • Simplifying generic mappings into S^2 and R^2

    2022.6 

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    Event date: 2022.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Topology of Reeb spaces of smooth functions on manifolds Invited

    2022.5 

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    Event date: 2022.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Graduate Program of Mathematics for Innovation - Nurturing Mathematical Modeling Talents with Mathematics Five Forces Invited International conference

    O. Saeki

    The 3rd International Symposium on AI Electronics  2022.2 

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    Event date: 2022.2

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Round fold maps of n-dimensional manifolds into (n-1)-dimensional Euclidean space Invited International conference

    O. Saeki

    JSPS-VAST Bilateral Joint Research Project Workshop "Singularities, arrangements, and low-dim. topology"  2021.12 

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    Event date: 2021.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Reeb diagram and visualization of monodromy Invited International conference

    O. Saeki

    Fiber Topology Meets Applications 2  2021.12 

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    Event date: 2021.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 九大IMIにおける産業界・諸科学分野との連携と人材育成の取組 Invited

    佐伯修

    社会課題は数理科学で解決できる!? -試みと課題-  2021.10 

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    Event date: 2021.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • Institute of Mathematics for Industry ― driving force of mathematics for the future Invited International conference

    2021.9 

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    Event date: 2021.9

    Language:English   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • 安定写像の非特異ファイバーのなす絡み目と特異点集合の位置 Invited

    佐伯修

    研究集会「結び目理論」  2021.9 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン   Country:Japan  

  • Collaborative Activities in Research and Education at the Institute of Mathematics for Industry Invited International conference

    O. Saeki

    MYHIMS-C SPECIAL SESSION "Industrial Mathematics in Asia Pacific and European Region", MYHIMS-C 2021, Malaysia  2021.8 

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    Event date: 2021.8

    Language:English   Presentation type:Oral presentation (general)  

    Country:Malaysia  

  • Quick Survey of Reeb Spaces in Topology and Visualization Invited

    O. Saeki

    2021.7 

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    Event date: 2021.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Round fold maps on 3-manifolds

    O. Saeki

    2021.6 

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    Event date: 2021.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Data Visualization using Differential Topology Invited International conference

    Osamu Saeki

    The 25th Annual Meeting in Mathematics: "Mathematics for Innovation Development"  2021.5 

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    Event date: 2021.5

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Thailand  

  • Simplifying Indefinite Fibrations on 4-manifolds International conference

    Osamu Saeki

    Fiber Topology Meets Applications  2021.1 

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    Event date: 2021.1

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Simplifying broken Lefschetz fibrations and trisections of 4-manifolds Invited International conference

    Osamu Saeki

    Topology Seminar (Online Seminar), Kansas State University  2020.10 

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    Event date: 2020.10

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

    Other Link: https://events.k-state.edu/event/topology_seminar_simplifying_broken_lefschetz_fibrations_and_trisections_of_4-manifolds?utm_campaign=widget&utm_medium=widget&utm_source=Events#.YLOBUaFUs2z

  • Reeb graphs of smooth functions on manifolds

    Osamu Saeki

    2019.12 

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    Event date: 2019.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Data visualization using differential topology Invited International conference

    Osamu Saeki

    2019 International Joint Conference on AI & Data Science: Mathematics and Applications  2019.11 

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    Event date: 2019.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Korea, Republic of  

  • Manifolds admitting fold-cusp maps of certain restricted indices

    Osamu Saeki

    2019.7 

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    Event date: 2019.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • PhD Program in Mathematics for Key Technologies - Attempt of Kyushu University International conference

    Osamu Saeki

    Mathematics for Industry in the Asia Pacific Area - Part 2 of 2, ICIAM2019 Minisymposium  2019.7 

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    Event date: 2019.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Spain  

  • Unlinking singular loci from regular fibers and its application to submersions Invited

    Osamu Saeki

    Lefschetz Pencils and Low dimensional Topology  2019.6 

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    Event date: 2019.5 - 2019.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Data visualization using differential topology Invited International conference

    Osamu Saeki

    2019 National Taiwan Normal University (NTNU)-Kyushu University Joint Forum  2019.5 

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    Event date: 2019.5

    Language:English   Presentation type:Oral presentation (general)  

    Country:Taiwan, Province of China  

    Other Link: http://www.math.ntnu.edu.tw/news/news.php?Sn=1298

  • Examples from our Study Group Activities in Industrial Mathematics Invited International conference

    Osamu Saeki

    Colloquium, Ajou University  2019.3 

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    Event date: 2019.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:Korea, Republic of  

  • Unlinking singular locus from regular fibers and its application to submersions Invited

    Osamu Saeki

    The 14th Kagoshima Algebra-Analysis-Geometry Seminar  2019.2 

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    Event date: 2019.2

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Unlinking singular locus from regular fibers and its application to submersions

    2019.1 

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    Event date: 2019.1

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Examples from our Study Group Activities Invited International conference

    Osamu Saeki

    The 2nd NIMS Industrial Math Problem Solving Workshop  2018.12 

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    Event date: 2018.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Korea, Republic of  

    Other Link: https://www.nims.re.kr/eng/announce/post/eng_general/33099

  • Unlinking singular locus from regular fibers and its application to submersions Invited

    Osamu Saeki

    Geometry, Topology and Dynamics Seminar, Okinawa Institute of Science and Technology  2018.10 

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    Event date: 2018.10

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

    Other Link: https://groups.oist.jp/manifolds/event/topology-and-geometry-seminar-unlinking-singular-locus-regular-fibers-and-its

  • Elimination of definite fold for simple stable maps Invited

    Osamu Saeki

    Real Algebraic Geometry and Singularity Theory Symposium (Memorial Conference of Masahiro Shiota)  2018.9 

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    Event date: 2018.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Simplifying broken Lefschetz fibrations and trisections of 4-manifolds

    Osamu Saeki

    Four Dimensional Topology  2018.9 

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    Event date: 2018.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

    Other Link: http://www.sci.osaka-cu.ac.jp/OCAMI/activities/symposium/2018/4top201809/program.html

  • Singular locus and regular fibers, do they link each other ? Invited International conference

    Osamu Saeki

    15th International Workshop on Real and Complex Singularities  2018.7 

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    Event date: 2018.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Brazil  

  • 微分トポロジーを用いたデータの可視化 Invited

    佐伯修

    2018年度精密工学会 春季大会シンポジウム「AIMaP 数学応用シンポジウム:精密工学と幾何学の新たな出会い」  2018.3 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:中央大学 後楽園キャンパス   Country:Japan  

  • Singular set and regular fibers, do they link each other? International conference

    Osamu Saeki

    2018.2 

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    Event date: 2018.2

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Simplifying indefinite fibrations and trisections of 4-manifolds Invited International conference

    Osamu Saeki

    The 13th Kagoshima Algebra-Analysis-Geometry Seminar  2018.2 

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    Event date: 2018.2

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Simplifying indefinite fibrations on 4-manifolds Invited

    2017.12 

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    Event date: 2017.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Topologia das singularidades e teoria de nós Invited International conference

    2017.11 

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    Event date: 2017.11

    Language:Others   Presentation type:Oral presentation (general)  

    Venue:Departamento de Matemática da Universidade Federal da Paraíba, João Pessoa   Country:Brazil  

  • Elimination of definite fold II

    Osamu Saeki

    2017.11 

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    Event date: 2017.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • A Vassiliev type invariant of order one for stable maps of 3-manifolds into surfaces Invited International conference

    Osamu Saeki

    Australian-Japanese Workshop on Real and Complex Singularities  2017.9 

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    Event date: 2017.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Australia  

  • Global aspect of singularity theory

    2017.9 

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    Event date: 2017.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Simplifying indefinite fibrations on 4-manifolds International conference

    Osamu Saeki

    Geometric and Algebraic Singularity Theory  2017.9 

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    Event date: 2017.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Poland  

  • A Vassiliev type invariant of order one for stable maps of 3-manifolds into surfaces Invited International conference

    Osamu Saeki

    PRIMA 3rd Congress, Singularities of Spaces and Mappings  2017.8 

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    Event date: 2017.8

    Language:English   Presentation type:Oral presentation (general)  

    Country:Mexico  

  • Indefinite fibrations on differentiable 4-manifolds Invited International conference

    Osamu Saeki

    Brazil-Mexico 3rd Meeting on Singularities  2017.8 

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    Event date: 2017.8

    Language:English   Presentation type:Oral presentation (general)  

    Country:Mexico  

  • Introduction to singularity theory and fiber topology in multivariate data analysis Invited International conference

    Osamu Saeki

    Topology, Computation and Data Analysis, Dagstuhl Seminar 17292  2017.7 

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    Event date: 2017.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Germany  

  • 安定写像の特異ファイバーとその応用 Invited

    佐伯修

    RIMS-IMI談話会  2017.2 

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    Event date: 2017.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都大学数理解析研究所   Country:Japan  

  • Indefinite fibrations on 4-manifolds Invited International conference

    Osamu Saeki

    Differential Geometry, Lie Theory and Low Dimensional Topology  2016.12 

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    Event date: 2016.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Australia  

  • A Vassiliev type invariant of order one for stable maps of 3-manifolds into surfaces

    Osamu Saeki

    2016.12 

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    Event date: 2016.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Stable maps on 3-manifolds and signatures of 4-manifolds with boundary

    2016.11 

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    Event date: 2016.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 微分トポロジーによるデータ可視化 Invited

    佐伯修

    日本機械学会2016年度年次大会,産業に応える数学 ―幾何・統計・計算数学からものづくりへ―  2016.9 

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    Event date: 2016.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学伊都キャンパス   Country:Japan  

  • らせん転位の数学的表現の現状とその問題点

    佐伯 修

    結晶のらせん転位の数理  2016.9 

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    Event date: 2016.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学マス・フォア・インダストリ研究所   Country:Japan  

  • トポロジーでデータ構造を解析する Invited

    佐伯 修

    第10回設計情報学研究会  2016.8 

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    Event date: 2016.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:KKRホテル熊本   Country:Japan  

  • 可微分多様体上の安定写像のトポロジー(I), (II) Invited

    佐伯 修

    研究集会「特異点の大域的研究」  2016.6 

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    Event date: 2016.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:兵庫教育大学神戸ハーバーランドキャンパス   Country:Japan  

  • Visualizing Singular Fibers - UI & Impacts -

    佐伯 修, Daisuke Sakurai, Hamish Carr, Hsiang-Yun Wu, Takahiro Yamamoto, David Duke, Kenji Ono, Shigeo Takahashi

    2016.2 

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    Event date: 2016.2

    Language:Japanese  

    Venue:IMI百道オフィス、福岡   Country:Japan  

  • 写像の特異点論とデータ可視化 Invited

    佐伯 修

    共共拠点研究会 RIMS1963-IMI2013  2015.12 

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    Event date: 2015.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学   Country:Japan  

  • 組織構造の斬新な数学的解析手法~トポロジーとその考え方 Invited

    佐伯 修

    第67回白石記念講座「新しい世紀の形態計量学-数学と鉄鋼研究のコラボレーション-」  2015.11 

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    Event date: 2015.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:早稲田大学   Country:Japan  

  • Singularity Theory and Data Visualization Invited International conference

    2015.11 

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    Event date: 2015.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

    Singularity Theory and Data Visualization

  • Singularity theory and data visualization International conference

    The 3rd Franco-Japanese-Vietnamese Symposium on Singularities  2015.12 

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    Event date: 2015.11 - 2015.12

    Language:English  

    Country:Viet Nam  

    Singularity theory and data visualization

  • Non-trivial real Milnor fibrations Invited

    2015.10 

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    Event date: 2015.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Singularity theory and data visualization Invited International conference

    Geometric Singularity Theory, Polish-Japanese Singularity Theory Working Days  2015.9 

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    Event date: 2015.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Poland  

    Singularity theory and data visualization

  • 組織構造の斬新な数学的解析手法 ~ トポロジーとその考え方 Invited

    佐伯 修

    鉄鋼インフォマティクス研究会第6回研究会  2015.9 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:九州大学   Country:Japan  

  • Cobordism group of Morse functions on surfaces with boundary Invited International conference

    Brazil-Mexico 2nd Meeting on Singularities - 2015  2015.7 

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    Event date: 2015.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Brazil  

    Cobordism group of Morse functions on surfaces with boundary

    Other Link: http://imi.kyushu-u.ac.jp/~saeki/pdf/Brasil2015-v4p.pdf

  • New examples of non-trivial real Milnor fibrations Invited International conference

    Singularities in Generic Geometry and applications  2015.6 

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    Event date: 2015.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

    New examples of non-trivial real Milnor fibrations

    Other Link: http://imi.kyushu-u.ac.jp/~saeki/pdf/Kobe2015-v3-1.pdf

  • Topology of quasi-homogeneous isolated hypersurface singularities Invited

    OSAMU SAEKI

    2012.12 

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    Event date: 2012.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Novas aplicações das matemáticas na indústria Invited International conference

    2012.11 

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    Event date: 2012.11

    Language:Others   Presentation type:Oral presentation (general)  

    Venue:ICMC-USP   Country:Brazil  

    数学の産業応用について、特にマス・フォア・インダストリ研究所の活動と、可微分写像の特異点論のデータ可視化への応用について紹介した。

  • Desingularizar aplicações genéricas especiais Invited International conference

    2012.11 

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    Event date: 2012.11

    Language:Others   Presentation type:Oral presentation (general)  

    Venue:ICMC-USP   Country:Brazil  

    スペシャル・ジェネリック写像を余次元1はめ込みに持ち上げることについて、種々の結果を得た。

  • Desingularizing special generic maps Invited

    OSAMU SAEKI

    2012.11 

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    Event date: 2012.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Broken Lefschetz fibrations and their moves Invited

    OSAMU SAEKI

    2012.8 

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    Event date: 2012.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Broken Lefschetz fibrations with embedded fold image

    OSAMU SAEKI

    2012.5 

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    Event date: 2012.5 - 2012.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Cobordism of knots associated with complex hypersurface singularities Invited

    Osamu Saeki

    2012.4 

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    Event date: 2012.4

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Topology of definite fold singularities Invited International conference

    Osamu Saeki

    Geometric Topology Seminar  2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Country:Germany  

  • Topology of definite fold singularities Invited International conference

    Osamu Saeki

    2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Country:France  

  • Topology of definite fold singularities Invited International conference

    Osamu Saeki

    Topology Seminar  2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Country:United Kingdom  

  • Desingularizing special generic maps Invited International conference

    Osamu Saeki

    2012.2 

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    Event date: 2012.2

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Topology of definite fold singularities Invited International conference

    Osamu Saeki

    The 4th Japanese-Australian Workshop on Real and Complex Singularities  2011.11 

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    Event date: 2011.11

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Cobordism of knots defined by Brieskorn polynomials Invited International conference

    Osamu Saeki

    The 19th TAPU Seminar on Knots and Related Topics  2011.9 

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    Event date: 2011.9

    Presentation type:Oral presentation (general)  

    Country:Korea, Republic of  

  • Survey on knots associated with complex hypersurface singularities Invited International conference

    Osamu Saeki

    The 19th TAPU Seminar on Knots and Related Topics  2011.9 

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    Event date: 2011.9

    Presentation type:Oral presentation (general)  

    Country:Korea, Republic of  

  • 定値折り目特異点の消去と特異レフシェッツ束 Invited

    近畿大学数学教室談話会  2011.7 

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    Event date: 2011.7

    Presentation type:Oral presentation (general)  

    Venue:近畿大学   Country:Japan  

    定値折り目特異点の消去と特異レフシェッツ束について,最近得られた結果について報告した.

  • 定値折り目特異点の消去と特異レフシェッツ束 Invited

    大阪大学数学教室談話会  2011.6 

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    Event date: 2011.6

    Presentation type:Oral presentation (general)  

    Venue:大阪大学   Country:Japan  

    定値折り目特異点の消去と特異レフシェッツ束について,最近得られた結果について報告した.

  • Lifting special generic maps

    Osamu Saeki

    2011.5 

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    Event date: 2011.5 - 2011.6

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 多値関数データのための位相に基づく視覚的データ解析 Invited

    佐伯修

    「拡がっていく数学」 平成22年度 数学・数理科学と諸科学・産業技術分野の連携ワークショップ《CGによる可視化と数学》  2011.3 

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    Event date: 2011.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:学術総合センター   Country:Japan  

    可微分写像の特異点論を,多値関数データのための視覚的データ解析(データの可視化)に応用することについて,高橋成雄氏と共同研究を行い,可微分写像の特異ファイバーの理論が,そのようなコンピュータサイエンスの理論に応用できることが明らかになった.

  • Topology of definite fold singularities Invited

    Osamu Saeki

    2011.2 

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    Event date: 2011.2

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Connected components of regular fibers of differentiable maps International conference

    Osamu Saeki

    Topology of singularities and related topics, II  2011.1 

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    Event date: 2011.1

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Elimination of definite fold and broken Lefschetz fibrations Invited International conference

    Osamu Saeki

    2010.11 

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    Event date: 2010.11

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Cobordism of algebraic knots defined by Brieskorn polynomials

    Osamu Saeki

    2010.6 

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    Event date: 2010.6

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Special generic maps on open 4-manifolds

    2010.1 

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    Event date: 2010.1

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Singular fibers of differentiable maps and 4-dimensional cobordism group

    2009.1 

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    Event date: 2009.1

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Fibras singulares e cobordismos em dimensão 4 Invited International conference

    Colóquio de Matemática  2008.12 

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    Event date: 2008.12

    Presentation type:Oral presentation (general)  

    Venue:サンパウロ大学   Country:Brazil  

  • 可微分写像の特異ファイバーと同境群 Invited

    佐伯修

    近畿大学数学教室講演会  2008.10 

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    Event date: 2008.10

    Presentation type:Oral presentation (general)  

    Venue:近畿大学   Country:Japan  

  • モース写像の同境と写像芽の位相不変量

    佐伯修

    トポロジー金曜セミナー  2008.10 

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    Event date: 2008.10

    Presentation type:Oral presentation (general)  

    Venue:九州大学   Country:Japan  

  • Cobordism of Morse maps and its application to map germs Invited International conference

    Osamu Saeki

    Informal Seminar  2008.8 

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    Event date: 2008.8

    Presentation type:Oral presentation (general)  

    Country:Hungary  

  • Desingularizing special generic maps Invited International conference

    Visiting Lecture at Institute of Mathematics  2014.3 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:Poland  

  • Singular fibers of differentiable maps and low dimensional topology II Invited International conference

    Visiting Lecture at Center for Advanced Studies  2014.3 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:Poland  

  • Visualizing multivariate data using singularity theory Invited International conference

    Visiting Lecture at Center for Advanced Studies  2014.4 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:Poland  

  • Singular fibers and visualization of multivariate data Invited International conference

    13th International Workshop on Real and Complex Singularities  2014.8 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:Brazil  

  • Connected components of regular fibers of differentiable maps Invited International conference

    19th Brazilian Topology Meeting  2014.8 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:Brazil  

  • New examples of non-trivial real Milnor fibrations Invited International conference

    Workshop on Singularities, Geometry, Topology and Related Topics  2014.9 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:China  

  • Non-trivial real Milnor fibrations

    2014.11 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • やわらかい幾何学、トポロジーでデータ構造を解析する Invited

    佐伯 修

    九州大学テクノロジーフォーラム2014,セッションII  2014.12 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京国際フォーラム   Country:Japan  

  • Singular fibers and data visualization Invited

    2014.12 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Singular fibers of differentiable maps and low dimensional topology I Invited International conference

    Visiting Lecture at Center for Advanced Studies  2014.3 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:Poland  

  • Finiteness results for knots and singularities International conference

    Singularities in Geometry and Topology  1998.7 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Finiteness results for knots and singularities, Osamu Saeki, Singularities in Geometry and Topology, Sapporo, July 1998.

  • 微分可能写像の特異点の消去問題について Invited

    佐伯修

    トポロジー・シンポジウム  1998.7 

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    Presentation type:Oral presentation (general)  

    Venue:山口大学   Country:Japan  

  • Euler characteristic formulas for simplicial maps and their applications International conference

    Topology of singularities  1998.2 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Euler characteristic formulas for simplicial maps and their applications, Osamu Saeki, Topology of singularities, Kochi, February 1998.

  • Euler characteristic formulas for simplicial maps and their applications International conference

    5th Workshop on Real and Complex Singularities  1998.7 

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    Presentation type:Oral presentation (general)  

    Country:Brazil  

    Euler characteristic formulas for simplicial maps and their applications, Osamu Saeki, 5th Workshop on Real and Complex Singularities, Sao Carlos, July 1998.

  • Gluck surgery along a 2-sphere in a 4-manifold is realized by surgery along a projective plane International conference

    XI Brazilian Meeting of Topology  1998.8 

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    Country:Brazil  

    Gluck surgery along a 2-sphere in a 4-manifold is realized by surgery along a projective plane, Osamu Saeki, XI Brazilian Meeting of Topology, Rio Claro, August 1998.

  • Embedding of quaternion space in S^4

    1998.10 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Embedding of quaternion space in S^4, Osamu Saeki, Mathematical Society of Japan, Osaka, October 1998.

  • A primary obstruction to topological embeddings and its applications Invited

    1998.10 

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    Country:Japan  

    A primary obstruction to topological embeddings and its applications, Osamu Saeki, 25th Symposium on Group Actions, Yamagata, October 1998.

  • 微分位相幾何学への応用 Invited

    佐伯修

    Encounter with Mathematics 第10回 応用特異点論 − 数学(厳密科学)としてのカタストロフ理論をめざして  1999.2 

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    Presentation type:Oral presentation (general)  

    Venue:中央大学   Country:Japan  

  • On punctured 3-manifolds in S^5

    1999.3 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    On punctured 3-manifolds in S^5, Osamu Saeki, Mathematical Society of Japan, Tokyo, March 1999.

  • On algebraic unknotting numbers of knots

    1999.3 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    On algebraic unknotting numbers of knots, Osamu Saeki, Mathematical Society of Japan, Tokyo, March 1999.

  • Generic maps into the plane which lift to standard embeddings in codimension two

    1999.9 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Generic maps into the plane which lift to standard embeddings in codimension two, Osamu Saeki, Topology of manifolds and singularities in various categories, Wakayama, September 1999.

  • Topics from global theory of singularities of differentiable mappings I, II Invited

    1999.11 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Topics from global theory of singularities of differentiable mappings I, II, Osamu Saeki, Seminar on Differential Analysis in Kwansai, Kinki University, November 1999.

  • 特異曲面のオイラー標数公式とその応用

    佐伯修

    曲面,線叢,偏微分方程式  2000.1 

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    Presentation type:Oral presentation (general)  

    Venue:KKR鹿児島敬天閣   Country:Japan  

  • Topology of singular fibers of stable maps

    2000.6 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Topology of singular fibers of stable maps, Osamu Saeki, Singularities and Dynamical Systems, Kyoto, June 2000.

  • Stable maps and their singular fibers International conference

    The 6th Workshop on Real and Complex Singularities  2000.7 

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    Presentation type:Oral presentation (general)  

    Country:Brazil  

    Stable maps and their singular fibers, Osamu Saeki, The 6th Workshop on Real and Complex, Sao Carlos, July 2000.

  • Open books and isotopy of 4-manifolds International conference

    XII Encontro Brasileiro de Topologia  2000.8 

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    Presentation type:Oral presentation (general)  

    Country:Brazil  

    Open books and isotopy of 4-manifolds, Osamu Saeki, XII Encontro Brasileiro de Topologia, Niteroi, August 2000.

  • 安定写像と4次元トポロジー Invited

    佐伯修

    日本数学会年会  2001.3 

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    Presentation type:Oral presentation (general)  

    Venue:慶應義塾大学   Country:Japan  

  • 4次元多様体上の折り目写像について

    佐伯修

    4次元トポロジー研究集会  2002.1 

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    Presentation type:Oral presentation (general)  

    Venue:広島大学   Country:Japan  

  • Fold maps on 4-manifolds Invited International conference

    International Conference on Topology in Matsue 2002 joined with The Second Japan-Mexico Topology Symposium  2002.6 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Fold maps on 4-manifolds, Osamu Saeki, International Conference on Topology in Matsue 2002 joined with The Second Japan-Mexico Topology Symposium, Shimane University, June 2002.

  • Open book structures on highly connected manifolds

    2002.9 

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    Country:Japan  

    Open book structures on highly connected manifolds, Osamu Saeki, Mathematical Society of Japan, Shimane University, September 2002.

  • Fold maps on 4-manifolds

    2002.12 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Fold maps on 4-manifolds, Osamu Saeki, Topology of Real and Complex Singularities II, Kagoshima, December 2002.

  • 安定写像の特異ファイバーと4次元多様体の符号数

    佐伯修

    4次元のトポロジー  2003.1 

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    Venue:広島大学   Country:Japan  

  • Submersions avec plis sur les varietes de dimension quatre International conference

    Seminaire GT3, IRMA  2003.5 

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    Presentation type:Oral presentation (general)  

    Country:France  

    Fold maps on 4-dimensional manifolds

  • Pull back relation for non-spherical knots

    2003.10 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Pull back relation for non-spherical knots

  • 曲面結び目のコボルディズム

    佐伯修

    4次元トポロジー研究集会  2004.1 

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    Presentation type:Oral presentation (general)  

    Venue:広島大学   Country:Japan  

  • Cobordism of surfaces embedded in S^4 Invited

    2004.1 

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    Country:Japan  

    Cobordism of surfaces embedded in S^4

  • Generic smooth maps with sphere fibers

    2004.4 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Generic smooth maps with sphere fibers

  • Universal complex of singular fibers and cobordism of singular maps

    2005.3 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Universal complex of singular fibers and cobordism of singular maps

  • Concordance of 4-dimensional knots

    2005.3 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Concordance of 4-dimensional knots

  • Generic smooth maps with sphere fibers Invited

    2006.3 

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    Country:Japan  

    Generic smooth maps with sphere fibers

  • 可微分写像の特異ファイバーとその応用 Invited

    佐伯修

    筑波大学数学系月例談話会  2006.6 

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    Venue:筑波大学   Country:Japan  

  • 折り目写像が存在するための障害について Invited

    佐伯修

    広島大学トポロジー・幾何セミナー  2006.10 

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    Venue:広島大学   Country:Japan  

  • Elimination of definite fold

    2006.11 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Elimination of definite fold

  • 可微分写像の特異ファイバーとその応用 Invited

    佐伯修

    大岡山談話会  2006.12 

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    Presentation type:Oral presentation (general)  

    Venue:東京工業大学   Country:Japan  

  • Morse functions with sphere fibers Invited

    2007.1 

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    Country:Japan  

    Morse functions with sphere fibers

  • Seeking for invariants of manifolds

    2007.10 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

    Seeking for invariants of manifolds

  • Desingularizing special generic maps Invited International conference

    Topology Seminar  2013.6 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:China  

  • Broken Lefschetz fibrations and their moves Invited International conference

    2013.6 

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    Language:English  

    Country:China  

  • モース関数とそのレーブグラフ入門 Invited

    佐伯 修

    2013.7 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:神戸大学発達科学部   Country:Japan  

  • マス・フォア・インダストリ活動について Invited

    佐伯 修

    2013.7 

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    Venue:神戸大学発達科学部   Country:Japan  

  • Topology of quasi-homogeneous isolated hypersurface singularities Invited International conference

    Seminarios de Singularidades  2013.8 

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    Country:Brazil  

  • On study group activities Invited International conference

    Seminarios do LMACC  2013.8 

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    Country:Brazil  

  • Desingularizing special generic maps Invited International conference

    The 1st Franco-Japanese-Vietnamese Symposium on Singularities (and The 7th Franco-Japanese Symposium on Singularities)  2013.9 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:France  

  • Visualizing multivariate data using singularity theory Invited International conference

    2013.11 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Topology of manifolds and global theory of singularities Invited International conference

    2013.11 

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    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 現代のトップテクノロジー,トポロジーを使ったデータ構造の解析 ~トポロジー技術を用いた分子構造解析とデータ可視化~ Invited

    佐伯 修

    数学メガネからみたイノベーション  2013.12 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:稲盛財団記念館(九州大学伊都キャンパス)   Country:Japan  

    現代数学のトップテクノロジーであるトポロジーの歴史、アイデアについて簡単に紹介したあと、その現実的な問題への応用、特に分子構造解析と、データ構造解析への応用について、数学を必ずしも専門とはしない聴衆を相手にわかりやすく講演する。

  • Topology of manifolds and global theory of singularities Invited International conference

    One day workshop on hypersurface singularity and its link manifolds  2014.1 

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    Country:Japan  

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MISC

Professional Memberships

  • The Mathematical Society of Japan

  • The Japan Society for Industrial and Applied Mathematics

  • Australian Mathematical Society

  • Asia Pacific Consortium of Mathematics for Industry

  • Society for Industrial and Applied Mathematics

  • 日本数学会

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  • THE JAPAN SOCIETY FOR INDUSTRIAL AND APPLIED MATHEMATICS

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  • Australian Mathematical Society

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  • Society for Industrial and Applied Mathematics

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  • Asia Pacific Consortium of Mathematics for Industry

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Committee Memberships

  • 九州大学   未来人材育成機構委員  

    2023.4 - Present   

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    Committee type:Other

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  • 九州大学   大学院マス・フォア・イノベーション連係学府副学府長  

    2022.4 - Present   

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    Committee type:Other

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  • 九州大学   マス・フォア・イノベーション卓越大学院プログラムコーディネーター  

    2020.10 - 2027.3   

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    Committee type:Other

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  • 九州大学   マス・フォア・インダストリ研究所所長  

    2018.10 - 2022.9   

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  • Councilor   Domestic

    2018.3 - 2020.3   

  • 九州大学   マス・フォア・インダストリ研究所副所長  

    2014.10 - 2018.9   

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  • 九州大学   九州大学リーディングプログラム コーディネーター  

    2013.12 - 2020.3   

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    Committee type:Other

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  • 日本数学会   学術委員会運営委員   Domestic

    2012.7 - 2018.6   

  • 日本数学会   学術委員会運営委員  

    2012.7 - 2018.6   

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  • 九州大学   大学院数理学府副教務委員長  

    2010.7 - 2016.3   

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    Committee type:Other

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  • 九州大学   理学部数学科長  

    2009.4 - 2010.3   

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    Committee type:Other

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  • 九州大学   大学院数理学府専攻長  

    2009.4 - 2010.3   

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    Committee type:Other

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  • 九州大学   産業技術数理研究センター副センター長  

    2008.4 - 2010.3   

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    Committee type:Other

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  • Councilor   Domestic

    2007.4 - 2008.3   

  • 九州大学   大学院数理学研究院先端数学・先端数理講座運営委員会委員  

    2007.4 - 2008.3   

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    Committee type:Other

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  • 九州大学   大学院数理学研究院運営委員会委員  

    2007.4 - 2008.3   

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    Committee type:Other

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  • 九州大学   大学院数理学研究院運営協議会委員  

    2007.4 - 2008.3   

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    Committee type:Other

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  • 九州大学   大学院数理学研究院数学部門長  

    2007.4 - 2008.3   

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    Committee type:Other

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  • 九州大学   大学院数理学研究院将来計画委員会委員  

    2007.4 - 2008.3   

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    Committee type:Other

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  • 九州大学   数理図書移設ワーキンググループ委員長  

    2007.2 - 2009.3   

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    Committee type:Other

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  • 九州大学   数理学研究院経理委員会委員  

    2004.4 - 2010.3   

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    Committee type:Other

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  • 九州大学   附属図書館商議委員会委員  

    2004.4 - 2010.3   

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    Committee type:Other

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  • 九州大学   数理学研究院図書委員会委員長  

    2004.4 - 2009.3   

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  • 九州大学   理学部図書委員会委員  

    2004.4 - 2009.3   

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  • 九州大学   電子ジャーナルの導入に関する検討専門部会委員  

    2002.4 - 2003.3   

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Academic Activities

  • organizer International contribution

    WORKSHOP on Mathematics for Industry 2023--Basis of Mathematics in nanomedicine structures and life sensing  ( Faculty of Mathematics and Information Science of Warsaw University of Technology Poland ) 2023.9

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  • 組織委員

    高専との連携によるモノづくりと数学の融合  ( 九州大学マス・フォア・インダストリ研究所 ) 2023.9

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  • 高専との連携によるモノづくりと数学の融合

    ( 九州大学マス・フォア・インダストリ研究所 Japan ) 2023.9

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  • 組織委員

    材料科学における幾何と代数IV  ( 九州大学マス・フォア・インダストリ研究所 ) 2023.9

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    Type:Competition, symposium, etc. 

  • member of the Organising Committee International contribution

    Forum ``Math-for-Industry'' 2023--MfI2.0--  ( Kyushu University Nishijin Plaza Japan ) 2023.8 - 2023.9

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  • Forum "Math-for-Industry'' 2023--MfI2.0-- International contribution

    ( Kyushu University Nishijin Plaza Japan ) 2023.8 - 2023.9

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  • member of the Organizing Committee International contribution

    ICIAM2023, TOKYO  ( Waseda University Japan ) 2023.8

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  • ICIAM2023, TOKYO International contribution

    ( Waseda University Japan ) 2023.8

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  • 組織委員 International contribution

    ( 早稲田大学 ) 2023.8

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  • ICIAM2023 International contribution

    ( 早稲田大学 Japan ) 2023.8

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  • 基礎研究振興部会委員

    文部科学省  2023.2 - 2025.2

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  • Organising and Program Committeeのメンバー International contribution

    Forum “Math-for-Industry” 2022,-Mathematics of Public Health and Sustainability-  2022.11

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  • Forum “Math-for-Industry” 2022,-Mathematics of Public Health and Sustainability- International contribution

    ( La Trobe University City Campus Australia ) 2022.11

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  • 組織委員メンバー International contribution

    2022.11

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  • MSJ-SI 2022, "Deepening and Evolution of Applied Singularity Theory" International contribution

    ( WORKPIA YOKOHAMA Japan ) 2022.11

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  • 組織委員メンバー

    材料科学における幾何と代数III  ( 九州大学マス・フォア・インダストリ研究所 ) 2022.9

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  • 主催組織代表

    ( 九州大学マス・フォア・インダストリ研究所 ) 2022.7 - 2022.8

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  • Study Group Workshop 2022

    ( 九州大学マス・フォア・インダストリ研究所 Japan ) 2022.7 - 2022.8

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  • 主催組織代表

    九州大学大学院マス・フォア・イノベーション連係学府 設置記念式典・シンポジウム  ( 九州大学マス・フォア・インダストリ研究所 ) 2022.6

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  • 九州大学大学院マス・フォア・イノベーション連係学府 設置記念式典・シンポジウム

    ( 九州大学マス・フォア・インダストリ研究所 Japan ) 2022.6

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  • 運営委員

    京都大学数理解析研究所  2022.5 - 2023.8

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  • 主催組織の代表

    AIMaP 公開シンポジウム「数学イノベーションは社会を変革できるか? ~AIMaP 成果と今後の戦略 的展開~」  2022.3

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  • AIMaP 公開シンポジウム「数学イノベーションは社会を変革できるか? ~AIMaP 成果と今後の戦略 的展開~」

    ( Kyushu University, Online Japan ) 2022.3

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  • 組織委員の一人として

    2022.3

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  • Branched Coverings, Degenerations, and Related Topics 2022

    ( Kyushu University, Online Japan ) 2022.3

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  • 主催組織の代表 International contribution

    WIRELESS POWER TRANSFER: TECHNOLOGIES FOR SMART SOCIETIES, I2CNER–IMI Joint International Workshop  2022.1

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  • WIRELESS POWER TRANSFER: TECHNOLOGIES FOR SMART SOCIETIES, I2CNER–IMI Joint International Workshop International contribution

    ( Kyushu University, Online Japan ) 2022.1

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  • 主催組織の代表 International contribution

    Forum “Math-for-Industry” 2021,Mathematics for Digital Economy  2021.12

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  • Forum “Math-for-Industry” 2021,Mathematics for Digital Economy International contribution

    ( Vietnam Institute for Advanced Study, Online Vietnam ) 2021.12

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  • 組織委員の一人として

    ( 九州大学(オンライン) ) 2021.12

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  • Proceedings of the Forum "Math-for-Industry" 2021 International contribution

    2021.12 - 2022.3

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  • Proceedings of the Forum "Math-for-Industry" 2021 International contribution

    Role(s): Review, evaluation

    2021.12 - 2022.3

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    Type:Peer review 

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  • 主催組織の代表

    アジア・太平洋における数理融合イノベーションの場の形成  ( 九州大学(オンライン) ) 2021.11

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  • アジア・太平洋における数理融合イノベーションの場の形成

    ( 九州大学(オンライン) Japan ) 2021.11

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  • 主催組織の代表

    数学・数理科学5 研究拠点合同市民講演会「故きを温ねて新しきを知る」  ( 九州大学(オンライン) ) 2021.11

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  • 数学・数理科学5 研究拠点合同市民講演会「故きを温ねて新しきを知る」

    ( 九州大学(オンライン) Japan ) 2021.11

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  • 組織委員の一人として

    社会課題は数理科学で解決できる!? –試みと課題–  ( 九州大学(オンライン) ) 2021.10

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  • 社会課題は数理科学で解決できる!? –試みと課題–

    ( 九州大学(オンライン) Japan ) 2021.10

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  • 外部評価委員

    大阪市立大学数学研究所  2021.10 - 2021.12

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  • 主催組織の代表

    第66 回国立大学附置研究所・センター会議第1部会シンポジウム「数学のチカラ」  ( 九州大学(オンライン) ) 2021.9

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  • 第66 回国立大学附置研究所・センター会議第1部会シンポジウム「数学のチカラ」

    ( 九州大学(オンライン) Japan ) 2021.9

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  • 組織委員の一人として

    進化計算の数理  ( 九州大学(オンライン) ) 2021.9

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  • 進化計算の数理

    ( 九州大学(オンライン) Japan ) 2021.9

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  • 専門委員

    京都大学数理解析研究所  2021.9 - 2023.8

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  • 組織委員の一人として

    材料科学における幾何と代数II  ( 九州大学(オンライン) ) 2021.8

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  • 主催組織代表

    ( 九州大学(オンライン) ) 2021.7 - 2021.8

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    Type:Competition, symposium, etc. 

  • Study Group Workshop 2021

    ( 九州大学(オンライン) Japan ) 2021.7 - 2021.8

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  • 主催組織代表 International contribution

    九州大学マス・フォア・インダストリ研究所 設立10周年記念式典  ( 九州大学(オンライン) ) 2021.5

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  • 九州大学マス・フォア・インダストリ研究所 設立10周年記念式典 International contribution

    ( 九州大学(オンライン) Japan ) 2021.5

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  • 組織委員 International contribution

    The 2nd Ajou-Kyushu joint workshop on industrial Mathematics: "Biomedical Mathematics” (The 2nd Edition of Asia Pacific Online Seminars on Mathematics for Industry)  ( 九州大学(オンライン) ) 2021.5

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  • The 2nd Ajou-Kyushu joint workshop on industrial Mathematics: "Biomedical Mathematics” (The 2nd Edition of Asia Pacific Online Seminars on Mathematics for Industry) International contribution

    ( 九州大学(オンライン) Japan ) 2021.5

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  • 主催組織代表 International contribution

    九州大学マス・フォア・イノベーション卓越大学院キックオフシンポジウム  ( 九州大学(オンライン) ) 2021.3

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  • 九州大学マス・フォア・イノベーション卓越大学院キックオフシンポジウム International contribution

    ( 九州大学(オンライン) Japan ) 2021.3

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  • 主催組織代表

    RIMS-IMI合同談話会  ( 京都大学数理解析研究所(オンライン) ) 2021.3

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  • RIMS-IMI合同談話会

    ( 京都大学数理解析研究所(オンライン) Japan ) 2021.3

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  • 主催組織代表 International contribution

    Mathematics Without Borders – Applied and Applicable, Kyushu–Illinois Strategic Partnership Col-loquia Series #2  ( 九州大学(オンライン) ) 2021.3

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  • Mathematics Without Borders – Applied and Applicable, Kyushu–Illinois Strategic Partnership Col-loquia Series #2 International contribution

    ( 九州大学(オンライン) Japan ) 2021.3

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  • 明治大学「私立大学研究ブランディング事業」外部評価委員

    明治大学先端数理科学インスティテュート  2021.2 - 2021.3

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  • 組織委員 International contribution

    Artificial Intelligence for Operation and Management of Energy Grids, I2CNER–IMI INTERNA-TIONAL WORKSHOP  ( 九州大学(オンライン) ) 2021.1

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  • Artificial Intelligence for Operation and Management of Energy Grids, I2CNER–IMI INTERNA-TIONAL WORKSHOP International contribution

    ( 九州大学(オンライン) Japan ) 2021.1

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  • 組織委員 International contribution

    ( 九州大学(オンライン) ) 2021.1

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  • Scientific Committee Member International contribution

    ( Brazil ) 2020.11

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  • 16th International Workshop on Real and Complex Singularities – celebrating 30 years International contribution

    ( サンパウロ大学サンカルロス校(オンライン) Brazil ) 2020.11

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  • 主催組織代表

    ( 九州大学 ) 2020.11

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  • Study Group Workshop 2020

    ( 九州大学 Japan ) 2020.11

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  • 主催組織代表

    数学・数理科学5研究拠点合同市民講演会「みえるものとみえないもの」  ( 九州大学(オンライン) ) 2020.11

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  • 数学・数理科学5研究拠点合同市民講演会「みえるものとみえないもの」

    ( 九州大学(オンライン) Japan ) 2020.11

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  • 組織委員

    材料科学における幾何と代数I  ( 九州大学(オンライン) ) 2020.9

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    Number of participants:50

  • 主催組織代表

    CREST・さきがけ・AIMaP合同シンポジウム「数学パワーが世界を変える2020」  ( 秋葉原コンベンションホール ) 2020.2

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  • CREST・さきがけ・AIMaP合同シンポジウム「数学パワーが世界を変える2020」

    ( 秋葉原コンベンションホール Japan ) 2020.2

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  • Screening of academic papers

    Role(s): Peer review

    2020

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:1

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • 世話人 International contribution

    2019.11

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  • Forum "Math-for-Industry" 2019 International contribution

    ( Massey University, Auckland, New Zealand NewZealand ) 2019.11

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  • Proceedings of the Forum "Math-for-Industry" 2019 International contribution

    2019.11 - 2022.3

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  • 世話人

    結晶の界面,転位,構造の先進数理解析  ( 九州大学伊都キャンパス ) 2019.9

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  • 世話人

    実践と数理に根ざした多目的最適化ベンチマークの開発  ( 九州大学伊都キャンパス ) 2019.9

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  • 実践と数理に根ざした多目的最適化ベンチマークの開発

    ( 九州大学伊都キャンパス Japan ) 2019.9

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  • 世話人

    第66回 トポロジーシンポジウム  ( 秋田市 ) 2019.8

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  • 第66回 トポロジーシンポジウム

    ( 秋田市 Japan ) 2019.8

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  • 世話人

    研究集会「特異点論とトポロジー」  ( 九州大学伊都キャンパス ) 2019.7 - 2019.8

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  • 研究集会「特異点論とトポロジー」

    ( 九州大学伊都キャンパス Japan ) 2019.7 - 2019.8

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  • 主催組織の代表

    ( 九州大学、東京大学 ) 2019.7

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  • 主催組織代表

    マス・フォア・イノベーション シンポジウム  ( 九州大学伊都キャンパス ) 2019.6

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  • マス・フォア・イノベーション シンポジウム

    ( 九州大学伊都キャンパス Japan ) 2019.6

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  • CREST 研究領域「数学・数理科学と情報科学の連携・融合による情報活用基盤の創出と社会課題解決に向けた展開」領域アドバイザー

    Role(s): Review, evaluation

    国立研究開発法人科学技術振興機構  2019.6 - 2024.3

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    Type:Scientific advice/Review 

  • CREST 研究領域「数学・数理科学と情報科学の連携・融合による情報活用基盤の創出と社会課題解決に向けた展開」領域アドバイザー

    国立研究開発法人科学技術振興機構  2019.6 - 2022.3

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  • 世話人

    ( 広島大学 ) 2019.3

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    Type:Competition, symposium, etc. 

    Number of participants:60

  • Branched Coverings, Degenerations, and Related Topics

    ( 広島大学 Japan ) 2019.3

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  • 世話人

    ( 鹿児島大学 ) 2019.2

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    Number of participants:50

  • The 14th Kagoshima Algebra-Analysis-Geometry Seminar

    ( 鹿児島大学 Japan ) 2019.2

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  • 主催機関代表 International contribution

    2018.11

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    Number of participants:100

  • Forum "Math-for-Industry" 2018 International contribution

    ( Fudan University, Shanghai China ) 2018.11

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  • Proceedings of the Forum "Math-for-Industry" 2018 International contribution

    2018.11 - 2021.11

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  • Proceedings of the Forum "Math-for-Industry" 2018 International contribution

    Role(s): Review, evaluation

    2018.11 - 2021.11

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    Type:Peer review 

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  • 主催機関代表 International contribution

    ( 九州大学マス・フォア・インダストリ研究所 ) 2018.10

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    Number of participants:30

  • Joint Mini-workshop between KU and NTNU International contribution

    ( 九州大学マス・フォア・インダストリ研究所 Japan ) 2018.10

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  • 学術委員 International contribution

    2018.9

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    Type:Competition, symposium, etc. 

    Number of participants:60

  • The 6th Franco-Japanese-Vietnamese Symposium on Singularites International contribution

    ( Khanh Hoa University, Nha Trang Vietnam ) 2018.9

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  • 組織委員

    結晶転位の先進数理解析  ( 九州大学マス・フォア・インダストリ研究所 ) 2018.9

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    Type:Competition, symposium, etc. 

    Number of participants:25

  • 世話人

    第65回 トポロジーシンポジウム  ( 信州大学 ) 2018.8

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    Type:Competition, symposium, etc. 

    Number of participants:150

  • 第65回 トポロジーシンポジウム

    ( 信州大学 Japan ) 2018.8

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  • 組織委員

    多目的最適化と特異点論:パレート点の特異型の分類  ( 九州大学マス・フォア・インダストリ研究所 ) 2018.8

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    Type:Competition, symposium, etc. 

    Number of participants:15

  • 多目的最適化と特異点論:パレート点の特異型の分類

    ( 九州大学マス・フォア・インダストリ研究所 Japan ) 2018.8

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  • 共立出版「ひろがるトポロジー」シリーズ

    2018.3 - 2023.3

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  • 共立出版「ひろがるトポロジー」シリーズ

    Role(s): Review, evaluation

    2018.3 - 2023.3

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  • 学術委員 International contribution

    ( 鹿児島大学 ) 2017.10 - 2017.11

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  • The 5th Franco-Japanese-Vietnamese Symposium on Singularities International contribution

    ( 鹿児島大学 Japan ) 2017.10 - 2017.11

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  • 組織委員 International contribution

    2017.10

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  • Forum "Math-for-Industry" 2017 International contribution

    ( University of Hawaii at Manoa, Hawaii UnitedStatesofAmerica ) 2017.10

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  • 近代科学社「IMI シリーズ:進化する産業数学」

    2017.10 - 2022.9

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  • 近代科学社「IMI シリーズ:進化する産業数学」

    Role(s): Review, evaluation

    2017.10 - 2022.9

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    Type:Peer review 

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  • 学術委員 International contribution

    ( Będlewo ) 2017.9

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  • Geometric and Algebraic Singularity Theory International contribution

    ( Będlewo Poland ) 2017.9

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  • 組織委員

    ベクトル値滑層分割Morse理論の構築による多数目的最適化問題の解集合の可視化  ( 九州大学伊都キャンパス ) 2017.9

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  • ベクトル値滑層分割Morse理論の構築による多数目的最適化問題の解集合の可視化

    ( 九州大学伊都キャンパス Japan ) 2017.9

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  • 組織委員

    結晶の界面,転位,構造の数理  ( 九州大学西新プラザ ) 2017.8

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  • Journal of the Mathematical Society of Japan International contribution

    2017.7 - 2023.6

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    Type:Academic society, research group, etc. 

  • Journal of the Mathematical Society of Japan International contribution

    Role(s): Review, evaluation

    2017.7 - 2023.6

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  • 企画運営責任者

    数学アドバンストイノベーションプラットフォーム  2017.6 - 2022.3

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  • Screening of academic papers

    Role(s): Peer review

    2017

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:3

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:1

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • 座長(Chairmanship)

    日本数学会 2016年度秋季総合分科会  ( 関西大学 ) 2016.9

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  • 日本数学会 2016年度秋季総合分科会

    ( 関西大学 Japan ) 2016.9

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  • 座長(Chairmanship)

    産業に応える数学 -幾何・統計・計算数学からものづくりへ-  ( 九州大学 伊都キャンパス ) 2016.9

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  • 産業に応える数学 -幾何・統計・計算数学からものづくりへ-

    ( 九州大学 伊都キャンパス Japan ) 2016.9

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  • 主催者代表

    結晶のらせん転位の数理  ( 九州大学 ) 2016.9

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    Type:Competition, symposium, etc. 

    Number of participants:20

  • 座長(Chairmanship)

    結晶のらせん転位の数理  ( 九州大学 伊都キャンパス ) 2016.9

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  • モデレータ International contribution

    スタディグループ・ワークショップ2016  ( 九州大学、東京大学 ) 2016.7 - 2016.8

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  • スタディグループ・ワークショップ2016 International contribution

    ( 九州大学、東京大学 Japan ) 2016.7 - 2016.8

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  • Screening of academic papers

    Role(s): Peer review

    2016

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:1

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

  • 学術委員 International contribution

    2015.11 - 2015.12

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    Type:Competition, symposium, etc. 

    Number of participants:60

  • The 3rd Franco - Japanese - Vietnamese Symposium on Singularities International contribution

    ( Hanoi Vietnam ) 2015.11 - 2015.12

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  • 組織委員 International contribution

    ( 九州大学 ) 2015.10

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    Type:Competition, symposium, etc. 

    Number of participants:100

  • Forum "Math-for-Industry" 2015 -The Role and Importance of Mathematics in Innovation- International contribution

    ( 九州大学 Japan ) 2015.10

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  • 学術委員 International contribution

    2015.9

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    Type:Competition, symposium, etc. 

    Number of participants:60

  • Geometric Singularity Theory International contribution

    ( Warsaw Poland ) 2015.9

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  • モデレータ International contribution

    スタディグループ・ワークショップ2015  ( 九州大学、東京大学 ) 2015.7 - 2015.8

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  • スタディグループ・ワークショップ2015 International contribution

    ( 九州大学、東京大学 Japan ) 2015.7 - 2015.8

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  • 学術委員 International contribution

    ( 神戸大学、京都大学 ) 2015.6

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    Number of participants:60

  • Singularities in Generic Geometry and its Applications -- Kobe-Kyoto 2015 (Valencia IV) -- International contribution

    ( 神戸大学、京都大学 Japan ) 2015.6

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  • 座長(Chairmanship)

    日本数学会年会  ( 明治大学 ) 2015.3

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    Type:Competition, symposium, etc. 

  • Mathematics for Industry International contribution

    2014.12 - 2016.3

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    Type:Peer review 

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  • 学術委員 International contribution

    ( 北海道大学 ) 2014.8

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    Type:Competition, symposium, etc. 

    Number of participants:60

  • The 2nd Franco-Japanese-Vietnamese Symposium on Singularities Sapporo International contribution

    ( 北海道大学 Japan ) 2014.8

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    Type:Competition, symposium, etc. 

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  • 座長(Chairmanship) International contribution

    2014.7

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    Type:Competition, symposium, etc. 

  • 13th International Workshop on Real and Complex Singularities International contribution

    ( University of Sao Paulo, Sao Carlos, Brazil Brazil ) 2014.7

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  • 組織委員 International contribution

    2013.9

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    Type:Competition, symposium, etc. 

    Number of participants:60

  • The 7-th Franco-Japanese Symposium on Singualrities (The 1st Franco-Japanese-Vietnamese Symposium on Singularities) International contribution

    ( Nice France ) 2013.9

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  • 主催者代表 International contribution

    スタディグループ・ワークショップ2013  ( 九州大学、東京大学 ) 2013.7 - 2013.8

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    Type:Competition, symposium, etc. 

    Number of participants:100

  • スタディグループ・ワークショップ2013 International contribution

    ( 九州大学、東京大学 Japan ) 2013.7 - 2013.8

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  • Proceedings of the 12th International Workshop on Real and Complex Singularities International contribution

    Role(s): Review, evaluation

    2012.11 - 2014.10

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    Type:Peer review 

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  • 組織委員 International contribution

    Forum “Math-for-industry” 2012 “Information Recovery and Discovery”  ( 福岡国際会議場 ) 2012.10

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    Type:Competition, symposium, etc. 

    Number of participants:80

  • Forum “Math-for-industry” 2012 “Information Recovery and Discovery” International contribution

    ( 福岡国際会議場 Japan ) 2012.10

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  • 現地世話人 International contribution

    ( 九州大学医学部百年講堂 ) 2012.9

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    Type:Competition, symposium, etc. 

    Number of participants:200

  • MSJ-KMS Joint Meeting 2012 International contribution

    ( 九州大学医学部百年講堂 Japan ) 2012.9

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  • 世話人

    第59回トポロジーシンポジウム  ( 佐賀大学 ) 2012.8

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    Type:Competition, symposium, etc. 

    Number of participants:100

  • 第59回トポロジーシンポジウム

    ( 佐賀大学 Japan ) 2012.8

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  • 主催者代表 International contribution

    スタディ・グループ ワークショップ 2012  ( 九州大学伊都キャンパス、東京大学駒場キャンパス ) 2012.7

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    Type:Competition, symposium, etc. 

    Number of participants:100

  • スタディ・グループ ワークショップ 2012 International contribution

    ( 九州大学伊都キャンパス、東京大学駒場キャンパス Japan ) 2012.7

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  • Scientific Committee Member International contribution

    12th International Workshop on Real and Complex Singularities  ( Brazil ) 2012.7

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    Type:Competition, symposium, etc. 

    Number of participants:150

  • 12th International Workshop on Real and Complex Singularities International contribution

    ( ICMC-USP, São Carlos Brazil ) 2012.7

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    Type:Competition, symposium, etc. 

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  • 現地世話人

    第6回 福岡・札幌 幾何学セミナー  ( 九州大学西新プラザ ) 2012.2

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    Type:Competition, symposium, etc. 

    Number of participants:70

  • 第6回 福岡・札幌 幾何学セミナー

    ( 九州大学西新プラザ Japan ) 2012.2

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  • 世話人

    ( 神戸大学発達科学部 ) 2012.1

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    Type:Competition, symposium, etc. 

    Number of participants:40

  • Workshop of computer graphics and mathematics

    ( 神戸大学発達科学部 Japan ) 2012.1

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  • 組織委員 International contribution

    Forum "Math-for-Industry" 2011, "TSUNAMI - Mathematical Modelling" — Using Mathematics for Natural Disaster Prediction, Recovery and Provision for the Future —  2011.10

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    Type:Competition, symposium, etc. 

    Number of participants:60

  • Forum "Math-for-Industry" 2011, "TSUNAMI - Mathematical Modelling" — Using Mathematics for Natural Disaster Prediction, Recovery and Provision for the Future — International contribution

    ( East-West Center, University of Hawaii UnitedStatesofAmerica ) 2011.10

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  • 主催者 International contribution

    ( 九州大学西新プラザ ) 2011.9

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    Type:Competition, symposium, etc. 

    Number of participants:90

  • The 6th Franco-Japanese Symposium on Singularities International contribution

    ( 九州大学西新プラザ Japan ) 2011.9

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  • Proceedings of the 6th Franco-Japanese Symposium on Singularities International contribution

    Role(s): Review, evaluation

    2011.9 - 2013.9

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    Type:Peer review 

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  • モデレータ

    スタディグループ・ワークショップ2011  ( 九州大学、東京大学 ) 2011.8

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  • スタディグループ・ワークショップ2011

    ( 九州大学、東京大学 Japan ) 2011.8

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  • 組織委員 International contribution

    Forum “Math-for-Industry” 2010, Information security, visualization, and inverse problems, on the basis of optimization techniques  ( ヒルトン福岡 シーホーク, Fukuoka SRP Center ) 2010.10

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    Type:Competition, symposium, etc. 

    Number of participants:80

  • Forum “Math-for-Industry” 2010, Information security, visualization, and inverse problems, on the basis of optimization techniques International contribution

    ( ヒルトン福岡 シーホーク, Fukuoka SRP Center Japan ) 2010.10

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  • Journal of Math-for-Industry, Pacific Journal of Mathematics for Industry, International Journal of Mathematics for Industry International contribution

    2009.4 - 2020.3

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    Type:Academic society, research group, etc. 

  • Journal of Math-for-Industry, Pacific Journal of Mathematics for Industry, International Journal of Mathematics for Industry International contribution

    Role(s): Review, evaluation

    2009.4 - 2020.3

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    Type:Peer review 

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  • 組織委員 International contribution

    幾何学的視点からの特異点論  ( 九州大学 ) 2008.6

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    Type:Competition, symposium, etc. 

    Number of participants:50

  • 幾何学的視点からの特異点論 International contribution

    ( 九州大学 Japan ) 2008.6

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  • 世話人

    第2回 福岡・札幌 幾何学セミナー  ( 九州大学 ) 2008.2

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    Type:Competition, symposium, etc. 

    Number of participants:70

  • 第2回 福岡・札幌 幾何学セミナー

    ( 九州大学 Japan ) 2008.2

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  • 世話人

    第118回 日本数学会 九州支部 例会  ( 琉球大学 ) 2008.2

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    Type:Competition, symposium, etc. 

    Number of participants:30

  • 第118回 日本数学会 九州支部 例会

    ( 琉球大学 Japan ) 2008.2

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  • 世話人

    第117回 日本数学会 九州支部 例会  ( 宮崎大学 ) 2007.10

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    Type:Competition, symposium, etc. 

    Number of participants:20

  • 第117回 日本数学会 九州支部 例会

    ( 宮崎大学 Japan ) 2007.10

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  • 世話人

    大域的特異点論の問題  ( 近畿大学 ) 2007.10

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    Type:Competition, symposium, etc. 

    Number of participants:15

  • 大域的特異点論の問題

    ( 近畿大学 Japan ) 2007.10

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  • 座長(Chairmanship)

    日本数学会 2007 年度秋季総合分科会  ( 東北大学 ) 2007.9

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    Type:Competition, symposium, etc. 

  • 日本数学会 2007 年度秋季総合分科会

    ( 東北大学 Japan ) 2007.9

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  • 2007年度科学技術振興機構戦略的創造研究推進事業(さきがけ)外部評価者

    Role(s): Review, evaluation

    科学技術振興機構  2007.6 - 2007.8

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    Type:Scientific advice/Review 

  • 2007年度科学技術振興機構戦略的創造研究推進事業(さきがけ)外部評価者

    科学技術振興機構  2007.6 - 2007.8

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  • 専門委員会委員

    京都大学数理解析研究所  2007.4 - 2009.3

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  • 数学通信

    Role(s): Review, evaluation

    2007.4 - 2009.3

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    Type:Peer review 

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  • 座長(Chairmanship)

    日本数学会年会  ( 埼玉大学 ) 2007.3

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    Type:Competition, symposium, etc. 

  • member of the scientific committee International contribution

    9th International Workshop on Real and Complex Singularities  ( Sao Carlos Brazil ) 2006.7

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    Type:Competition, symposium, etc. 

    Number of participants:100

  • 9th International Workshop on Real and Complex Singularities International contribution

    ( Sao Carlos Brazil ) 2006.7

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  • 主催者

    特異点論―局所対大域  ( 山口大学 ) 2006.6

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    Type:Competition, symposium, etc. 

    Number of participants:30

  • 特異点論―局所対大域

    ( 山口大学 Japan ) 2006.6

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  • 主催者 International contribution

    トポロジーの展望  ( 九州大学西新プラザ ) 2006.3

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    Type:Competition, symposium, etc. 

    Number of participants:80

  • トポロジーの展望 International contribution

    ( 九州大学西新プラザ Japan ) 2006.3

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  • 座長(Chairmanship)

    日本数学会年会  ( 日本大学理工学部 ) 2005.3

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    Type:Competition, symposium, etc. 

  • 世話人

    多様体のトポロジーの未来へ  ( 東京大学 ) 2004.11

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    Type:Competition, symposium, etc. 

    Number of participants:80

  • 多様体のトポロジーの未来へ

    ( 東京大学 Japan ) 2004.11

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  • 座長(Chairmanship)

    特異点論における新しい方法と対象  ( 京都大学数理解析研究所 ) 2003.11

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  • 特異点論における新しい方法と対象

    ( 京都大学数理解析研究所 Japan ) 2003.11

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  • 構成員

    トポロジー連絡会議  2002.9

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  • A member of the scientific committee International contribution

    The 7th Workshop On Real And Complex Singularities  ( Sao Carlos Brazil ) 2002.7 - 2002.8

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    Type:Competition, symposium, etc. 

    Number of participants:100

  • The 7th Workshop On Real And Complex Singularities International contribution

    ( Sao Carlos Brazil ) 2002.7 - 2002.8

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▼display all

Research Projects

  • 特異点論と幾何的トポロジーが織りなす数学イノベーション

    Grant number:23H05437  2023 - 2027

    日本学術振興会  科学研究費助成事業  基盤研究(S)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • データのねじれをモノドロミーで可視化する

    Grant number:22K18267  2022 - 2027

    日本学術振興会  科学研究費助成事業  挑戦的研究(開拓)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 3次元双曲多様体上の量子トポロジー

    Grant number:21H04428  2021 - 2025

    日本学術振興会  科学研究費助成事業  基盤研究(A)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 「数学アドバンストイノベーションプラットフォーム(AIMaP)」

    2019 - 2021

    文部科学省科学技術試験研究委託事業

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    Authorship:Principal investigator  Grant type:Contract research

  • 幾何的トポロジーと写像の特異点論の革新的研究

    Grant number:17H06128  2017 - 2021

    日本学術振興会  科学研究費助成事業  基盤研究(S)

    佐伯 修, 大本 亨, 鎌田 聖一, 石川 昌治, 遠藤 久顕, 岩瀬 則夫, 小林 真人

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    Authorship:Principal investigator  Grant type:Scientific research funding

    可微分写像の大域的で具体的な簡略化手法を、幾何的トポロジーを用いて確立し、4次元多様体が常に良い構造を持つことを発見した。また、境界付き多様体上の写像の同境を初めて定式化するなど、新研究領域を創出した意義は大きい。さらに、非特異ファイバーと特異点集合が絡まないことがあることを突き止め、それを沈めこみ理論に応用した結果は、特異点論の汎用性を顕著に表している。また情報幾何学で重要な双対平坦構造について、特異モデルにも適用可能となるように理論を刷新するなど、諸科学分野への応用を目的とする次世代カタストロフィー理論の構築を進めた。

    CiNii Research

  • 写像の特異点論の革新とトポロジーの新展開

    Grant number:17H01090  2017

    日本学術振興会  科学研究費助成事業  基盤研究(A)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • L類,コボルディズム理論と双変理論およびその周辺に関する位相幾何学的総合研究

    Grant number:16H03936  2016 - 2018

    日本学術振興会  科学研究費助成事業  基盤研究(B)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • ゲージ理論に関連する結び目と3次元多様体の不変量と量子トポロジー

    Grant number:16K13754  2016 - 2018

    科学研究費助成事業  挑戦的萌芽研究

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • ビッグデータ可視化手法による安定写像構成イノベーションへの挑戦

    Grant number:15K13438  2015 - 2017

    科学研究費助成事業  挑戦的萌芽研究

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 九州大学持続的共進化地域創成拠点(九州大学COI拠点)

    2013.12 - 2022.3

    九州大学 

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    Authorship:Coinvestigator(s) 

    「持続的共進化地域創成拠点」は、クリーンエネルギーを最大限に活用することで地球環境への負荷を極限まで低減(SDGs7&13)しながら、同時に地域(都市と都市を取り巻く郊外)経済活性化と雇用創出、移動制約者への移動手段の提供により、あんしん・あんぜんで活力ある持続的地域創成(SDG11)を行うことを目指しています。 また、それらを通して、地域住民の健康面への配慮(SDG3)や社会的弱者に対する安価でアクセスしやすい地域サービスの提供(SDG10)も可能になると考えています。

    このような地域創成を実現するために、当拠点では地域と技術/制度の共進化という考え方を最大限に活用します。 地域課題が技術/制度の進化を促し、進化した技術/制度により地域課題が解決されることで地域が進化する、また、ある技術/制度の進化により他技術/制度の進化が後押しされ、それらによりさらに地域課題の解決が進む、そのような考え方です。 当拠点では、九州大学/東京大学/横浜国立大学を中心に、参画企業/地方自治体を含めた形で共進化委員会を形成し、PL/RLのマネジメントの下でエネルギー/モビリティ/情報科学/産業数学といった異分野技術の共進化を積極的に仕掛けていくことで、 地域課題を解決する社会実装を次々に生み出し続けるイノベーションプラットフォームを構築します(SDG9) 。

  • 特異ファイバーの分類に基づく多値関数データの特徴解析と可視化

    Grant number:25540041  2013 - 2014

    科学研究費助成事業  挑戦的萌芽研究

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 幾何学とトポロジーにおける特異点―未来の発展へ向けて

    2013

    日本学術振興会  二国間交流

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    Authorship:Principal investigator  Grant type:Joint research

  • 写像の特異点論の新展開

    Grant number:23244008  2011 - 2015

    日本学術振興会  科学研究費助成事業  基盤研究(A)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 可微分写像の構造安定性と形態形成

    Grant number:23654028  2011 - 2013

    科学研究費助成事業  挑戦的萌芽研究

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 幾何学とトポロジーにおける特異点

    2011

    日本学術振興会  二国間交流

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    Authorship:Principal investigator  Grant type:Joint research

  • 井上科学振興財団 国際研究集会の開催経費援助

    2011

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    Grant type:Donation

  • 多値関数データの可視化

    2010.10

    会津大学 コンピュータ理工学部 コンピュータ理工学科情報システム学部門 コンピュータグラフィックス講座(日本) 

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    Authorship:Coinvestigator(s) 

    データの可視化において,n次元空間からm次元空間への写像のサンプル点を解析する問題は,長い間重要視され広く研究が行われてきた.その中で,1990年代から発表され始めた微分トポロジーを用いて関数の特異性を抽出する手法は,可視化分野における技術革新のトップ10に含まれるものとして,現在多くの研究者の注目を集めるとともに,その表現能力も格段の発展が見られるようになった.これまでに行われてきた可視化研究は,主にスカラ場(n=2,3, m=1)の微分トポロジー解析であり,最近ではその定義域を多次元の場合へと拡張する研究が行われている.本共同研究では,今後の重要な技術的課題である,多値関数(m > 1)の微分トポロジー解析を行うことが主な目的である.そうした多値関数の視覚的解析には,微分可能写像の特異点のトポロジーを調べることが必要となり,それを用いて複数個の関数データを同時に解析するための手法について共同研究を進めている.

  • マス・フォア・インダストリ教育研究拠点

    2008 - 2012

    研究拠点形成費補助金(グローバルCOE) (文部科学省)

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    Authorship:Coinvestigator(s)  Grant type:Contract research

  • 非球面的結び目の同境とその応用

    2008

    日本学術振興会  二国間交流

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    Authorship:Principal investigator  Grant type:Joint research

  • 可微分写像の大域的特異点論とその応用

    Grant number:19340018  2007 - 2010

    日本学術振興会  科学研究費助成事業  基盤研究(B)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 多様体対への可微分写像に対する有限型不変量の定式化とその応用

    Grant number:18654014  2006 - 2008

    科学研究費助成事業  萌芽研究

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 与えられた特異点型のみを持つ可微分写像の同境群

    Grant number:17・05295  2005 - 2007

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • ホモトピー論的観点から見た大域的特異点論

    Grant number:16340018  2004 - 2006

    日本学術振興会  科学研究費助成事業  基盤研究(B)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 微分位相幾何学と特異点

    Grant number:13640076  2001 - 2002

    日本学術振興会  科学研究費助成事業  基盤研究(C)

      More details

    Authorship:Principal investigator  Grant type:Scientific research funding

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Educational Activities

  • The numbers of recent master course students that I supervised were 1 (2023), 4 (2022), 2 (2021), 1 (2019), 1 (2018), 2 (2015), 1 (2014), 4 (2013), 2 (2012), 1 (2011), 2 (2010), 1 (2009), 4 (2008), 2 (2007), 4 (2006), 2 (2005), 1 (2004), 4 (2001), 2 (2000), 2 (1998), 1 (1996) and 1 (1993).

    For undergraduate students, I have been teaching general topology and algebraic topology. The numbers of students that I supervised were 1 (2023), 2 (2022), 1(2021), 1 (2020), 5 (2019), 1 (2017), 1 (2016), 1 (2014), 1 (2012), 4 (2011), 4 (2010), 3 (2009), 2 (2008), 4 (2007), 3 (2006), 4 (2005), 3 (2004), 2 (2003), 2 (2001), 3 (2000), 6 (1999), 3 (1998), 3 (1996), 1 (1995), 3 (1993), 3 (1992), 2 (1991) and 4 (1988).

    Other than the above mentioned activities, I have given 14 mini-courses in other universities. Furthermore, I have supervised 3 Brazilian students for their PhD.

Class subject

  • 数学創発モデリング

    2023.4 - 2024.3   Full year

  • 位相幾何学基礎・演習

    2023.4 - 2023.9   First semester

  • フーリエ・ラプラス変換と偏微分方程式

    2022.10 - 2023.3   Second semester

  • フーリエ解析と偏微分方程式

    2022.10 - 2023.3   Second semester

  • 数学特論3(位相幾何学)

    2022.10 - 2023.3   Second semester

  • 位相幾何学大意

    2022.10 - 2023.3   Second semester

  • 卓越基礎講究

    2022.4 - 2023.3   Full year

  • 数学創発モデリング

    2022.4 - 2023.3   Full year

  • 数理科学特論13

    2021.4 - 2021.9   First semester

  • 数理科学特別講義XⅢ

    2021.4 - 2021.9   First semester

  • 位相幾何学大意

    2020.4 - 2020.9   First semester

  • 数学特論3(位相幾何学)

    2020.4 - 2020.9   First semester

  • MMA数学入門

    2019.4 - 2019.9   First semester

  • 数学基礎I演習

    2018.4 - 2018.9   First semester

  • フーリエ解析と偏微分方程式

    2018.4 - 2018.9   First semester

  • 数学ⅡA

    2018.4 - 2018.9   First semester

  • MMA数学入門

    2018.4 - 2018.9   First semester

  • フーリエ解析と偏微分方程式

    2017.10 - 2018.3   Second semester

  • 数学ⅡA

    2017.10 - 2018.3   Second semester

  • 位相幾何学基礎・演習

    2017.10 - 2018.3   Second semester

  • 数学基礎Ⅰ

    2017.4 - 2017.9   First semester

  • 機能数理学概論Ⅰ

    2017.4 - 2017.9   First semester

  • フーリエ解析と偏微分方程式

    2016.10 - 2017.3   Second semester

  • 数学基礎I

    2016.4 - 2016.9   First semester

  • 機能数理学概論I

    2016.4 - 2016.9   First semester

  • MMA講究A

    2016.4 - 2016.9   First semester

  • 数学基礎II

    2015.10 - 2016.3   Second semester

  • 位相幾何学大意

    2015.4 - 2015.9   First semester

  • 数学特論3(位相幾何学)

    2015.4 - 2015.9   First semester

  • 数学基礎II

    2014.10 - 2015.3   Second semester

  • 位相幾何学基礎・演習

    2014.4 - 2014.9   First semester

  • 数学基礎セミナー

    2013.4 - 2013.9   First semester

  • 数学基礎

    2013.4 - 2013.9   First semester

  • 数学基礎セミナー

    2012.4 - 2012.9   First semester

  • 数学基礎

    2012.4 - 2012.9   First semester

  • 幾何学II・演習

    2011.10 - 2012.3   Second semester

  • 位相幾何学基礎・演習

    2011.4 - 2011.9   First semester

  • 編入学者のための特別授業「位相の初歩」

    2011.4 - 2011.9   First semester

  • 幾何学A・演習

    2010.10 - 2011.3   Second semester

  • 数学展望

    2010.4 - 2010.9   First semester

  • 幾何学A・演習

    2009.10 - 2010.3   Second semester

  • 位相幾何学大意

    2008.10 - 2009.3   Second semester

  • 数学特論3

    2008.10 - 2009.3   Second semester

  • 数学概論2・演習

    2008.4 - 2008.9   First semester

  • 編入学者のための特別授業「基礎数学3(位相の初歩)」

    2008.4 - 2008.9   First semester

  • 位相幾何学基礎・演習

    2007.4 - 2007.9   First semester

  • 数学概論2・演習

    2007.4 - 2007.9   First semester

  • 位相幾何学大意

    2006.10 - 2007.3   Second semester

  • 数学特論3

    2006.10 - 2007.3   Second semester

  • 微分積分続論

    2006.4 - 2006.9   First semester

  • 幾何学A・演習

    2005.10 - 2006.3   Second semester

  • 位相幾何学基礎・演習

    2004.10 - 2005.3   Second semester

  • 数学IIA

    2004.10 - 2005.3   Second semester

  • 幾何学A・演習

    2004.10 - 2005.3   Second semester

  • 位相幾何学基礎・演習

    2003.10 - 2004.3   Second semester

  • 数学IIA

    2003.10 - 2004.3   Second semester

  • 幾何学A・演習

    2003.10 - 2004.3   Second semester

  • 幾何学A・演習

    2002.10 - 2003.3   Second semester

  • 数学IIA

    2002.10 - 2003.3   Second semester

  • 位相幾何学I

    2002.4 - 2002.9   First semester

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FD Participation

  • 2022.4   Role:Planning   Title:数理学府FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2021.7   Role:Planning   Title:数理学府FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2021.3   Role:Participation   Title:数理学府FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2018.4   Role:Participation   Title:数理学府教員会議ファカルティデベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2016.6   Role:Participation   Title:数理学府教員会議ファカルティデベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2011.3   Role:Participation   Title:九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2010.3   Role:Participation   Title:九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2010.1   Role:Participation   Title:九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2009.11   Role:Participation   Title:九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2009.7   Role:Participation   Title:九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2009.5   Role:Participation   Title:九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2009.3   Role:Participation   Title:九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2009.1   Role:Participation   Title:九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2008.11   Role:Participation   Title:九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2008.7   Role:Participation   Title:九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2008.5   Role:Participation   Title:九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2008.3   Role:Participation   Title:九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2007.2   Role:Participation   Title:平成18年度九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2006.2   Role:Participation   Title:平成17年度九州大学大学院数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2004.9   Role:Participation   Title:平成16年度第回全学FD

    Organizer:University-wide

  • 2003.1   Role:Participation   Title:平成14年度数理学研究院ファカルティ・デベロップメント

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2002.7   Role:Participation   Title:平成14年度第一回全学FD

    Organizer:University-wide

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Visiting, concurrent, or part-time lecturers at other universities, institutions, etc.

  • 2012  東京工業大学  Classification:Intensive course  Domestic/International Classification:Japan 

    Semester, Day Time or Duration:後期

  • 2011  大阪大学  Classification:Intensive course  Domestic/International Classification:Japan 

    Semester, Day Time or Duration:前期

  • 2010  釜山大学校  Classification:Intensive course  Domestic/International Classification:Overseas 

    Semester, Day Time or Duration:2010年8月30日~9月2日

  • 2006  東京工業大学  Classification:Intensive course  Domestic/International Classification:Japan 

    Semester, Day Time or Duration:後期

  • 2006  埼玉大学  Classification:Intensive course  Domestic/International Classification:Japan 

    Semester, Day Time or Duration:後期

  • 2003  東京大学大学院数理科学研究科  Classification:Intensive course  Domestic/International Classification:Japan 

    Semester, Day Time or Duration:後期、1月5日〜9日

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Other educational activity and Special note

  • 2023  Special Affairs 

  • 2022  Special Affairs 

  • 2021  Special Affairs 

     詳細を見る

    Kyushu University Leading PhD Program in Mathematics for Key Technologies, Program Coordinator

  • 2021  Special Affairs 

     詳細を見る

    The MEXT WISE program, Graduate Program of Mathematics for Innovation, has been approved and I am running the program as coordinator.

  • 2020  Special Affairs 

     詳細を見る

    Kyushu University Leading PhD Program in Mathematics for Key Technologies, Program Coordinator

  • 2020  Special Affairs 

     詳細を見る

    The MEXT WISE program, Graduate Program of Mathematics for Innovation, has been approved and I am running the program as coordinator.

  • 2010  Special Affairs 

     詳細を見る

    Joint Lecture with Pusan National University for Graduate Students

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Outline of Social Contribution and International Cooperation activities

  • I have written the following educational essays (in Japanese).

    1. Let us enjoy books on Mathematics
    2. Let us look at 4-dimensional spaces by using maps
    3. Differential topology and singularities
    4. Various ways to topology
    5. When I encountered with Mathematics --- fascinated by the mystery
    6. Mathematics is interesting
    7. Book Review "Introduction to Topology (in Japanese)" by T. Tanaka and H. Murakami.
    8. Differential topology and singularities
    9. Mathematics, Industry, and Mathematics
    10. Mathematics helps in an unexpected way -- Singularity Theory and Data Visualization
    11. Foreword, Sugaku Tsushin, Vol.27, No.4, February 2023.

Social Activities

  • デジタル・ニッポンの実現に向けた データ格付け数理基盤に関するシンポジウム クロージング「数学への期待とそれに応える人材育成への取組 」

    九州大学 マス・フォア・インダストリ研究所  九州大学(オンライン)  2020.12

     More details

    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • デジタル・ニッポンの実現に向けた データ格付け数理基盤に関するシンポジウム クロージング「数学への期待とそれに応える人材育成への取組 」

    九州大学 マス・フォア・インダストリ研究所  九州大学(オンライン)  2020.12

     More details

    Type:Seminar, workshop

    researchmap

  • 山門高校「レベルアップ講座」山門高校2年生対象

    福岡県立山門高校  九州大学  2015.8

     More details

    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • 山門高校「レベルアップ講座」山門高校2年生対象

    福岡県立山門高校  九州大学  2015.8

     More details

    Type:Seminar, workshop

    researchmap

  • 平成22年度山口県高等学校数学教育研究(長南)大会 「数学の汎用性 ― トポロジーの話題から ―」

    山口県高等学校数学教育研究部会  山口県立宇部中央高等学校  2010.10

     More details

    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

    トポロジーという数学の題材を例にとり,数学と実社会とのつながりについて,山口県の高校教員(数学)に対して説明した.特に,高校で数学を実際に教えている現場の教員に対して,数学がどのように社会に役立てられているか,大学の数学科を卒業した学生がどのように社会に求められているのか,詳しく説明した.現場の教育に役立てていただくことが目的であった.

  • 平成22年度山口県高等学校数学教育研究(長南)大会 「数学の汎用性 ― トポロジーの話題から ―」

    山口県高等学校数学教育研究部会  山口県立宇部中央高等学校  2010.10

     More details

    Type:Seminar, workshop

    トポロジーという数学の題材を例にとり,数学と実社会とのつながりについて,山口県の高校教員(数学)に対して説明した.特に,高校で数学を実際に教えている現場の教員に対して,数学がどのように社会に役立てられているか,大学の数学科を卒業した学生がどのように社会に求められているのか,詳しく説明した.現場の教育に役立てていただくことが目的であった.

    researchmap

  • 平成16年度九州大学公開講座「現代数学入門」 等高線のトポロジー

    九州大学大学院数理学研究院、福岡県教育委員会  九州大学国際ホール  2004.8

     More details

    Audience: General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 平成16年度九州大学公開講座「現代数学入門」 等高線のトポロジー

    九州大学大学院数理学研究院、福岡県教育委員会  九州大学国際ホール  2004.8

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    Type:Visiting lecture

    researchmap

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Media Coverage

  • 「教育は いま」テーマ「社会問題の解決に新視点」デジタル化進む現代の基礎 増す重要性 数学が変える世の中、開く人生 九州大に今春、新学府 Newspaper, magazine

    西日本新聞  2022.5

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    「教育は いま」テーマ「社会問題の解決に新視点」デジタル化進む現代の基礎 増す重要性 数学が変える世の中、開く人生 九州大に今春、新学府

  • 「教育は いま」テーマ「社会問題の解決に新視点」デジタル化進む現代の基礎 増す重要性 数学が変える世の中、開く人生 九州大に今春、新学府 Newspaper, magazine

    西日本新聞  2022.5

     More details

  • NHK特報フロンティア TV or radio program

    NHK  2012.2

     More details

    NHK特報フロンティア

  • NHK特報フロンティア TV or radio program

    NHK  2012.2

     More details

Activities contributing to policy formation, academic promotion, etc.

  • 2023.2 - 2025.2   文部科学省

    基礎研究振興部会委員

  • 2023.2 - 2025.2   文部科学省

    科学技術・学術審議会委員

  • 2022.5 - 2023.8   京都大学数理解析研究所

    運営委員

  • 2021.10 - 2021.12   大阪市立大学数学研究所

    外部評価委員

  • 2021.9 - 2023.8   京都大学数理解析研究所

    専門委員

  • 2021.2 - 2021.3   明治大学先端数理科学インスティテュート

    明治大学「私立大学研究ブランディング事業」外部評価委員

  • 2019.9 - 2021.8   京都大学数理解析研究所

    運営委員会委員

  • 2019.6 - 2023.3   JST

    CREST 研究領域「数学・数理科学と情報科学の連携・融合による情報活用基盤の創出と社会課題解決に向けた展開」領域アドバイザー

  • 2017.6 - 2022.3   数学アドバンストイノベーションプラットフォーム

    企画運営責任者

  • 2015.5 - 2024.3   明治大学先端数理科学インスティテュート

    運営委員会委員

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Acceptance of Foreign Researchers, etc.

  • University of Sao Paulo, Brazil

    Acceptance period: 2024.1   (Period):Less than 2 weeks

    Nationality:Brazil

    Business entity:Japan Society for the Promotion of Science

  • CNRS and Aix-Marseille University

    Acceptance period: 2023.10   (Period):Less than 2 weeks

    Nationality:France

    Business entity:Japan Society for the Promotion of Science

  • Alfred Renyi Institute of Mathematics

    Acceptance period: 2023.5 - 2023.6   (Period):Less than 2 weeks

    Nationality:Hungary

    Business entity:Japan Society for the Promotion of Science

  • Alfred Renyi Institute of Mathematics

    Acceptance period: 2023.2   (Period):Less than 2 weeks

    Nationality:Hungary

    Business entity:Ministry of education

  • 九州大学マス・フォア・インダストリ研究所

    Acceptance period: 2021.4 - 2022.3   (Period):1 month or more

    Nationality:France

    Business entity:Japan Society for the Promotion of Science

  • サンパウロ大学

    Acceptance period: 2019.10 - 2020.9   (Period):1 month or more

    Nationality:Colombia

    Business entity:Foreign governments, foreign research institutes, international organizations

  • 九州大学マス・フォア・インダストリ研究所

    Acceptance period: 2019.4   (Period):Less than 2 weeks

    Nationality:Russian Federation

    Business entity:Japan Society for the Promotion of Science

  • 九州大学マス・フォア・インダストリ研究所

    Acceptance period: 2017.11 - 2021.3   (Period):1 month or more

    Nationality:Germany

    Business entity:Japan Society for the Promotion of Science

  • School of Computing, Faculty of Engineering, University of Leeds, U.K.

    Acceptance period: 2014.8   (Period):Less than 2 weeks

    Nationality:United Kingdom

    Business entity:Japan Society for the Promotion of Science

  • Universidade Federal de Uberlandia

    Acceptance period: 2014.3   (Period):Less than 2 weeks

    Nationality:Brazil

    Business entity:Ministry of education

  • ICMC-USP

    Acceptance period: 2014.3   (Period):Less than 2 weeks

    Nationality:Brazil

    Business entity:Ministry of education

  • ICMC-USP

    Acceptance period: 2014.3   (Period):Less than 2 weeks

    Nationality:Brazil

    Business entity:Ministry of education

  • サンパウロ大学

    Acceptance period: 2013.12 - 2014.2   (Period):1 month or more

    Nationality:Brazil

    Business entity:Japan Society for the Promotion of Science

  • サンカルロス連邦大学

    Acceptance period: 2013.11 - 2014.3   (Period):1 month or more

    Nationality:Brazil

    Business entity:Foreign governments, foreign research institutes, international organizations

  • School of Computing, Faculty of Engineering, University of Leeds, U.K.

    Acceptance period: 2013.2   (Period):Less than 2 weeks

    Nationality:United Kingdom

    Business entity:Ministry of education

  • University of South Alabama

    Acceptance period: 2012.5   (Period):Less than 2 weeks

    Nationality:United States

    Business entity:Japan Society for the Promotion of Science

  • シドニー大学

    Acceptance period: 2011.11   (Period):2weeks to less than 1 month

    Nationality:Austria

    Business entity:Japan Society for the Promotion of Science

  • Institute of Mathematics, Vietnam Academy of Science and Technology

    Acceptance period: 2011.9   (Period):Less than 2 weeks

    Nationality:Viet Nam

    Business entity:Japan Society for the Promotion of Science

  • Univ. Leuven

    Acceptance period: 2011.9   (Period):Less than 2 weeks

    Nationality:Belgium

    Business entity:Japan Society for the Promotion of Science

  • Univ. Basel

    Acceptance period: 2011.9   (Period):Less than 2 weeks

    Nationality:Switzerland

    Business entity:Japan Society for the Promotion of Science

  • Univ. Marseille

    Acceptance period: 2011.9   (Period):Less than 2 weeks

    Nationality:France

    Business entity:Japan Society for the Promotion of Science

  • Univ. Strasbourg

    Acceptance period: 2011.9   (Period):Less than 2 weeks

    Nationality:France

    Business entity:Private/Foundation

  • Institute of Mathematics, Vietnam Academy of Science and Technology

    Acceptance period: 2011.9   (Period):Less than 2 weeks

    Nationality:Viet Nam

    Business entity:Private/Foundation

  • ICMAT

    Acceptance period: 2011.9   (Period):Less than 2 weeks

    Nationality:Spain

    Business entity:Private/Foundation

  • サンパウロ大学

    Acceptance period: 2010.10 - 2010.11   (Period):2weeks to less than 1 month

    Nationality:Brazil

    Business entity:Japan Society for the Promotion of Science

  • ケンブリッジ大学

    Acceptance period: 2010.6   (Period):Less than 2 weeks

    Nationality:Hungary

    Business entity:Japan Society for the Promotion of Science

  • Central European University

    Acceptance period: 2009.12   (Period):Less than 2 weeks

    Nationality:Hungary

    Business entity:Japan Society for the Promotion of Science

  • Strasbourg University

    Acceptance period: 2009.11   (Period):Less than 2 weeks

    Nationality:France

    Business entity:Japan Society for the Promotion of Science

  • Bates College

    Acceptance period: 2009.7   (Period):Less than 2 weeks

    Nationality:United States

    Business entity:Japan Society for the Promotion of Science

  • Institut de Mathematiques de Luminy - CNRS

    Acceptance period: 2008.11   (Period):Less than 2 weeks

    Nationality:France

    Business entity:Japan Society for the Promotion of Science

  • Max Planck Institut for Mathematics

    Acceptance period: 2008.6   (Period):Less than 2 weeks

    Nationality:Turkey

    Business entity:Japan Society for the Promotion of Science

  • Max Planck Institute for Mathematics

    Acceptance period: 2008.6   (Period):Less than 2 weeks

    Nationality:Russian Federation

    Business entity:Japan Society for the Promotion of Science

  • Eötvös Loránd University

    Acceptance period: 2008.6   (Period):Less than 2 weeks

    Nationality:Hungary

    Business entity:Japan Society for the Promotion of Science

  • ステクロフ数学研究所

    Acceptance period: 2006.12   (Period):Less than 2 weeks

    Nationality:Russian Federation

  • モスクワ州立大学経済学部

    Acceptance period: 2006.8   (Period):2weeks to less than 1 month

    Nationality:Russian Federation

  • Alfred Renyi Institute of Mathematics

    Acceptance period: 2006.2 - 2006.3   (Period):1 month or more

    Nationality:Hungary

    Business entity:Private/Foundation

  • なし

    Acceptance period: 2005.10 - 2007.10   (Period):1 month or more

    Nationality:Russian Federation

    Business entity:Japan Society for the Promotion of Science

  • Luis Pasteur University, Strasbourg I

    Acceptance period: 2004.9   (Period):Less than 2 weeks

    Nationality:France

  • エトボス・ロラン大学

    Acceptance period: 2003.9   (Period):2weeks to less than 1 month

    Nationality:Hungary

    Business entity:Ministry of education

  • University of Florida

    Acceptance period: 2003.9   (Period):2weeks to less than 1 month

    Nationality:Russian Federation

    Business entity:Ministry of education

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Travel Abroad

  • 2024.3

    Staying countory name 1:France   Staying institution name 1:University of Strasbourg

  • 2023.11

    Staying countory name 1:Brazil   Staying institution name 1:Universidade Federal do Ceara, Departamento de Matematica

  • 2023.9

    Staying countory name 1:Poland   Staying institution name 1:Faculty of Mathematics and Information Science of Warsaw University of Technology

  • 2023.9

    Staying countory name 1:Viet Nam   Staying institution name 1:FPT University

  • 2023.3

    Staying countory name 1:Viet Nam   Staying institution name 1:Vietnam Institute for Advanced Study in Mathematics

  • 2023.3

    Staying countory name 1:Germany   Staying institution name 1:Heidelberg University

  • 2023.2 - 2023.3

    Staying countory name 1:Netherlands   Staying institution name 1:RAI Congress Centre, Amsterdam, The Netherlands

  • 2022.11

    Staying countory name 1:Australia   Staying institution name 1:La Trobe University

  • 2022.7 - 2022.8

    Staying countory name 1:Brazil   Staying institution name 1:University of Sao Paulo at Sao Carlos

  • 2020.2

    Staying countory name 1:United States   Staying institution name 1:University of Illinois at Urbana-Champaign

  • 2019.11

    Staying countory name 1:New Zealand   Staying institution name 1:Massey University, Auckland

  • 2019.11

    Staying countory name 1:Korea, Republic of   Staying institution name 1:Ajou University

  • 2019.7

    Staying countory name 1:Spain   Staying institution name 1:Valencia

  • 2019.6

    Staying countory name 1:Australia   Staying institution name 1:La Trobe University

  • 2019.5

    Staying countory name 1:Taiwan, Province of China   Staying institution name 1:National Taiwan Normal University

  • 2019.3

    Staying countory name 1:Korea, Republic of   Staying institution name 1:Ajou University

  • 2018.12

    Staying countory name 1:Korea, Republic of   Staying institution name 1:National Institute for Mathematical Sciences

  • 2018.11

    Staying countory name 1:China   Staying institution name 1:Fudan University

  • 2018.7

    Staying countory name 1:Brazil   Staying institution name 1:ICMC, Univ. of São Paulo

  • 2017.11

    Staying countory name 1:Brazil   Staying institution name 1:Departamento de Matemática da Universidade Federal da Paraíba, João Pessoa

  • 2017.10

    Staying countory name 1:United States   Staying institution name 1:University of Hawaii at Manoa, Hawaii

  • 2017.9

    Staying countory name 1:Australia   Staying institution name 1:The University of Sydney

  • 2017.9

    Staying countory name 1:Poland   Staying institution name 1:IMPAN, Bedlewo

  • 2017.8

    Staying countory name 1:Mexico   Staying institution name 1:Instituto Tecnológico de Oaxaca

  • 2017.8

    Staying countory name 1:Mexico   Staying institution name 1:UNAM, Unidad Cuernavaca, Cuernavaca

  • 2017.7

    Staying countory name 1:Germany   Staying institution name 1:Schloss Dagstuhl – Leibniz Center for Informatics

  • 2017.2

    Staying countory name 1:Viet Nam   Staying institution name 1:VIASM, Hanoi

  • 2016.12

    Staying countory name 1:Australia   Staying institution name 1:La Trobe University, Melbourne

  • 2016.11

    Staying countory name 1:Australia   Staying institution name 1:Queensland University of Technology, Brisbane

  • 2016.7

    Staying countory name 1:New Zealand   Staying institution name 1:Victoria University of Wellington

  • 2015.9

    Staying countory name 1:Poland   Staying institution name 1:Banach Center, Warsaw

  • 2015.7

    Staying countory name 1:Brazil   Staying institution name 1:Federal University of Bahia

  • 2015.5

    Staying countory name 1:Germany   Staying institution name 1:Kurhaus Trifels

  • 2015.3

    Staying countory name 1:Australia   Staying institution name 1:La Trobe University

  • 2014.9

    Staying countory name 1:China   Staying institution name 1:東北師範大学

  • 2014.7 - 2014.8

    Staying countory name 1:Brazil   Staying institution name 1:ICMC-USP

  • 2014.3 - 2014.4

    Staying countory name 1:Poland   Staying institution name 1:Center for Advanced Studies, Warsaw University of Technology

  • 2013.9

    Staying countory name 1:France   Staying institution name 1:Laboratoire J. A. Dieudonné, Université de Nice Sophia Antipolis

  • 2013.8

    Staying countory name 1:Brazil   Staying institution name 1:ICMC-USP

  • 2013.6

    Staying countory name 1:Germany   Staying institution name 1:Max Planck Institute for Mathematics

  • 2013.6

    Staying countory name 1:China   Staying institution name 1:Shanghai Jiao Tong University

  • 2013.1 - 2013.2

    Staying countory name 1:Australia   Staying institution name 1:La Trobe University

    Staying institution name 2:RMIT University

  • 2012.11

    Staying countory name 1:Brazil   Staying institution name 1:サンパウロ大学

  • 2012.9

    Staying countory name 1:Singapore   Staying institution name 1:National University of Singapore

  • 2012.3 - 2012.4

    Staying countory name 1:United Kingdom   Staying institution name 1:University of Cambridge

    Staying countory name 2:France   Staying institution name 2:Université de Strasbourg

    Staying countory name 3:Germany   Staying institution name 3:Max Planck Institute for Mathematics

  • 2011.10

    Staying countory name 1:United States   Staying institution name 1:University of Hawaii

  • 2011.9 - 2012.9

    Staying countory name 1:Korea, Republic of   Staying institution name 1:釜山大学

  • 2010.8 - 2010.9

    Staying countory name 1:Korea, Republic of   Staying institution name 1:釜山大学

  • 2008.12 - 2009.1

    Staying countory name 1:Brazil   Staying institution name 1:サンパウロ大学

  • 2008.7 - 2008.9

    Staying countory name 1:France   Staying institution name 1:ルイ・パスツール大学

  • 2003.2 - 2003.8

    Staying countory name 1:France   Staying institution name 1:ルイ・パスツール大学

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