Existence of a minimal non-scattering solution to the mass sub-critical generalized Korteweg-de Vries equation Reviewed International journal

Satoshi Masaki, Jun-ichi Segata

Annales de l'Institut Henri Poincar'e/Analyse non lin'eaire   35 ( 2 )   283 - 326   2018.4

Modified scattering for the quadratic nonlinear Klein-Gordon equation in two dimensions Reviewed International journal

Satoshi Masaki, Jun-ichi Segata

Transactions of the American Mathematical Society   370 ( 11 )   8155 - 8170   2018.4

The fourth order nonlinear Schr"odinger limit for quantum Zakharov system Reviewed International journal

Yung-Fu Fang, Chi-Kun Lin, Jun-ichi Segata

Zeitschrift f"ur angewandte Mathematik und Physik, ZAMP - Journal of Applied Mathematics and Physics   67 ( 6 )   2016.4

On well-posedness of generalized Korteweg-de Vries equation in scale critical hat L^r space Reviewed International journal

Satoshi Masaki, Jun-ichi Segata

Analysis & PDE   9 ( 3 )   699 - 725   2016.4

Final state problem for the cubic nonlinear Schr"odinger equation with repulsive delta potential Reviewed International journal

Jun-ichi Segata

Communications in Partial Differential Equations   40 ( 2 )   309 - 328   2015.4

Refined energy inequality with application to well-posedness for the fourth order nonlinear Schr"odinger type equation on torus Reviewed International journal

Jun-ichi Segata

Journal of Differential Equations   252 ( 11 )   5994 - 6011   2012.4

Existence and Stability of standing waves of fourth order nonlinear Schr"odinger type equation related to vortex filament Reviewed International journal

Masaya Maeda, Jun-ichi Segata

Funkcialaj Ekvacioj   54 ( 1 )   1 - 14   2011.4

On asymptotic behavior of solutions to Korteweg-de type equations related to vortex filament with axial flow Reviewed International journal

Jun-ichi Segata

Journal of Differential Equations   245 ( 2 )   281 - 306   2008.4

Modified wave operators for the fourth-order non-linear Schr"odinger-type equation with cubic non-linearity Reviewed International journal

Jun-ichi Segata

Mathematical Methods in the Applied Sciences   29 ( 15 )   1785 - 1800   2006.4

Time local well-posedness for the Benjamin-Ono equation with large initial data Reviewed International journal

Naoyasu Kita, Jun-ichi Segata

Publications of the Research Institute for Mathematical Sciences, Kyoto University   42 ( 1 )   143 - 171   2006.1

Remark on well-posedness for the fourth order nonlinear Schr"odinger type equation Reviewed International journal

Jun-ichi Segata

Proceedings of the American Mathematical Society   132 ( 12 )   3559 - 3568   2004.12

Scattering for quantum Zakharov system in two space dimensions Reviewed

152 ( 8 )   3367 - 3379   2024.8   （ ISSN:0002-9939 eISSN:1088-6826 ）

Global Dynamics Below Excited Solitons for the Non-Radial NLS with Potential Reviewed International coauthorship

Satoshi Masaki, Jason Murphy, and Jun-ichi Segata

73 ( 3 )   1097 - 1205   2024   （ ISSN:0022-2518 eISSN:1943-5258 ）

Asymptotic Behavior in Time of Solution to System of Cubic Nonlinear Schrödinger Equations in One Space Dimension

Masaki S., Segata J.I., Uriya K.

Springer Proceedings in Mathematics and Statistics   451   119 - 180   2024   （ ISSN:21941009 ISBN:9789819703630 ）

Linear decay property for the hyperbolic-parabolic coupled systems of thermoviscoelasticity Reviewed International journal

Priyanjana M.N. Dharmawardane, Shuichi Kawashima, Takayoshi Ogawa, and Jun-ichi Segata

Journal of Hyperbolic Differential Equations   20   967 - 986   2023.12

Asymptotic stability of solitary waves for the 1d NLS with an attractive delta potential Reviewed International journal

Satoshi Masaki, Jason Murphy, and Jun-ichi Segata

Discrete and Continuous Dynamical Systems   43   2137 - 2185   2023.6

Polynomial deceleration for a system of cubic nonlinear Schrodinger equations in one space dimension Reviewed International journal

Naoyasu Kita, Satoshi Masaki, Jun-ichi Segata, and Kota Uriya

Nonlinear Analysis   230   2023.2

Asymptotic behavior in time of solutions to complex valued nonlinear Klein-Gordon equation in one space dimension Reviewed International journal

Jun-ichi Segata

Hokkaido Mathematical Journal   50   187 - 205   2021.8

Stability of small solitary waves for the 1d NLS with an attractive delta potential Reviewed International journal

Satoshi Masaki, Jason Murphy, Jun-ichi Segata

Analysis & PDE   13 ( 4 )   1099 - 1128   2020.4

Asymptotic behavior in time of solution to the nonlinear Schr"odinger equation with higher order anisotropic dispersion Reviewed International journal

Jean-Claude Saut, Jun-ichi Segata

Discrete and Continuous Dynamical Systems. Series A   39 ( 1 )   219 - 239   2019.4

Modified scattering for the Klein-Gordon equation with the critical nonlinearity Invited Reviewed International journal

Satoshi Masaki, Jun-ichi Segata

Communications on Pure and Applied Analysis   17 ( 4 )   1595 - 1611   2018.4

On the standing waves of quantum Zakharov system Reviewed International journal

Yung-Fu Fang, Jun-ichi Segata, Tsung-Fang Wu

Journal of Mathematical Analysis and Applications   458 ( 2 )   1427 - 1448   2018.4

Propagation of regularity and persistence of decay for fifth order dispersive models Reviewed International journal

Jun-ichi Segata, Derek L. Smith

Journal of Dynamics and Differential Equations   29 ( 2 )   701 - 736   2017.4

The generalized Korteweg-de Vries equation with time oscillating nonlinearity in scale critical Sobolev space Reviewed International journal

Jun-ichi Segata, Keishu Watanabe

Nonlinear Differential Equations and Applications, NoDEA   23 ( 5 )   2016.4

Initial value problem for the fourth order nonlinear Schr"odinger type equation on torus and orbital stability of standing waves Reviewed International journal

Jun-ichi Segata

Communications on Pure and Applied Analysis   14 ( 3 )   843 - 859   2015.4

Long time behavior of solutions to non-linear Schr"odinger equations with higher order dispersion Invited Reviewed International journal

Jun-ichi Segata

Advanced Studies in Pure Mathematics   64   151 - 162   2015.4

WKB analysis of the Schr"odinger-KdV system Reviewed International journal

Chi-Kun Lin, Jun-ichi Segata

Journal of Differential Equations   256 ( 11 )   3817 - 3834   2014.4

Orbital stability of two parameter family of solitary waves for fourth order nonlinear Schr"odinger type equation Reviewed International journal

Jun-ichi Segata

Journal of Mathematical Physics   54 ( 6 )   2013.4

The initial value problem for some hyperbolic-dispersive system Reviewed International journal

Shuichi Kawashima, Chi-Kun Lin, Jun-ichi Segata

Mathematical Methods in Applied Sciences   35 ( 2 )   125 - 133   2011.4

Well-posedness and standing waves for the fourth-order non-linear Schr"odinger-type equation Invited Reviewed International journal

Jun-ichi Segata

RIMS Kokyuroku Bessatsu   B26   81 - 92   2011.4

A remark on asymptotics of solutions to Schr"odinger equation with fourth order dispersion Reviewed International journal

Jun-ichi Segata

Asymptotic Analysis   75 ( 1-2 )   25 - 36   2011.4

Well-posedness and existence of standing waves for the fourth order nonlinear Schr"odinger type equation Reviewed International journal

Jun-ichi Segata

Discrete and Continuous Dynamical Systems   27 ( 3 )   1093 - 1105   2010.4

Final state problem for some KdV type equation Invited Reviewed International journal

Jun-ichi Segata

RIMS Kokyuroku Bessatsu   B22   13 - 20   2010.4

Global existence and asymptotic behavior of solutions to the fourth order nonlinear Schr"odinger type equation Reviewed International journal

Jun-ichi Segata, Akihiro Shimomura

Communications in Applied Analysis   11 ( 2 )   169 - 188   2007.4

On asymptotic behavior of solutions to the fourth order cubic nonlinear Schr"odinger type equation Reviewed International journal

Jun-ichi Segata

Advanced Studies in Pure Mathematics   47   329 - 339   2007.4

Asymptotics of solutions to the fourth order Schr"odinger type equation with a dissipative nonlinearity Reviewed International journal

Jun-ichi Segata, Akihiro Shimomura

Journal of Mathematics of Kyoto University   46 ( 2 )   439 - 456   2006.4

The contraction mapping approach for the Benjamin-Ono equation with large initial data Reviewed International journal

Naoyasu Kita, Jun-ichi Segata

``Nonlinear Dispersive Equations" Edited by T. Ozawa and Y. Tsutsumi, GAKUTO International Series, Mathematical Sciences and Applications   26   129 - 140   2006.4

Well-posedness for the Boussinesq-type system related to the water wave Reviewed International journal

Naoyasu Kita, Jun-ichi Segata

Funkcialaj Ekvacioj   47 ( 2 )   329 - 350   2004.8

Well-posedness for the fourth-order nonlinear Schr"odinger-type equation related to the vortex filament Reviewed International journal

Jun-ichi Segata

Differential and Integral Equations   16 ( 7 )   841 - 864   2003.7

Scattering problem for the generalized Korteweg-de Vries equation Invited International conference

Jun-ichi Segata

PDE/Applied seminar at UCSB  2017.3 

Existence of a minimal non-scattering solutions to the mass-subcritical generalized Korteweg-de Vries equation Invited International conference

Jun-ichi Segata

2017.6 

Modified scattering for the 1d cubic NLS with a repulsive delta potential Invited International conference

Jun-ichi Segata

The 12th bi-annual Conference on Dynamical Systems, Differential Equations and Applications  2018.7 

Refinement of Strichartz estimates for Airy equation in non-diagonal case and application Invited International conference

Jun-ichi Segata

RIMS workshop Harmonic Analysis and Nonlinear Partial Differential Equations  2018.6 

Modified scattering for the 1d cubic NLS with a repulsive delta potential Invited International conference

Jun-ichi Segata

Taiwan-Japan Workshop on Dispersion and Nonlinear Waves  2018.6 

Modified scattering for the Klein-Gordon equation with critical nonlinearity in two and three dimensions Invited International conference

Jun-ichi Segata

Nonlinear PDE for Future Applications - Hyperbolic and Dispersive PDE -  2017.7 

Scattering problem for the generalized Korteweg-de Vries equation Invited International conference

Jun-ichi Segata

Colloquium at Fudan University  2016.12 

Well-posedness for the fourth order nonlinear Schr"odinger type equation and orbital stability of standing waves Invited International conference

Jun-ichi Segata

Math Colloquium at National Cheng Kung University  2015.6 

The higher order nonlinear dispersive equation related to the motion of vortex filament Invited International conference

Jun-ichi Segata

PDE/Applied seminar at UCSB  2014.4 

非線形シュレディンガー方程式系の解の長時間挙動について Invited

瀬片 純市

神楽坂解析セミナー  2023.8 

非線形分散型方程式系の長距離散乱について Invited

瀬片 純市

大阪大学数学教室談話会  2023.6 

非線形シュレディンガー方程式系の解の長時間挙動について Invited

瀬片 純市

大阪大学微分方程式セミナー  2023.6 

Asymptotic behavior in time of solution to system of cubic nonlinear Schrodinger equations in one space dimension Invited International conference

Jun-ichi Segata

2023.2 

非線形シュレディンガー方程式のシステムの解の長時間挙動について Invited

瀬片 純市

第11回室蘭非線形解析研究会  2022.1 

デルタポテンシャルをもつ非線形シュレディンガー方程式の解の長時間挙動 Invited

瀬片 純市

京都大学大学院理学研究科数学教室談話会  2021.6 

On 1d nonlinear Schrodinger equation with an attractive delta potential Invited

Jun-ichi Segata

2020.2 

Asymptotic behavior in time of solution to the nonlinear Schrodinger equation with higher order anisotropic dispersion Invited

Jun-ichi Segata

Critical exponent and nonlinear evolution equations 2020  2020.2 

On 1d nonlinear Schrodinger equation with an attractive delta potential

Jun-ichi Segata

2020.2 

Modified scattering for the complex valued nonlinear Klein-Gordon equation Invited

Jun-ichi Segata

Workshop on nonlinear wave equations and related topics in Kobe  2019.11 

Modified scattering for the complex valued nonlinear Klein-Gordon equation Invited International conference

Jun-ichi Segata

Fundamental Problems in Mathematical and Theoretical Physics  2019.7 

Asymptotic behavior in time of solutions to complex valued nonlinear Klein-Gordon equation Invited

Jun-ichi Segata

2019.6 

Asymptotic behavior in time of solutions to complex valued nonlinear Klein-Gordon equation Invited

Jun-ichi Segata

2019.5 

Asymptotic behavior in time of solutions to complex valued nonlinear Klein-Gordon equation Invited

Jun-ichi Segata

2019.4 

Asymptotic behavior in time of solutions to complex valued nonlinear Klein-Gordon equation Invited International conference

Jun-ichi Segata

2019.3 

On nonlinear Schr"odinger equation with attractive delta potential in one space dimension Invited

Jun-ichi Segata

Nonlinear Dispersive Equations in Kumamoto  2019.1 

On 1d nonlinear Schr"odinger equation with delta potential Invited International conference

Jun-ichi Segata

2019.1 

On 1d nonlinear Schr"odinger equation with an attractive delta potential Invited

Jun-ichi Segata

2018.10 

Modified scattering for the cubic nonlinear Schr"odinger equation with a repulsive delta potential in one space dimension Invited

Jun-ichi Segata

2018.10 

Modified scattering for the cubic nonlinear Schr"odinger equation with a repulsive delta potential in one space dimension Invited

Jun-ichi Segata

2018.6 

Refinement of Strichartz estimates for Airy equation in non-diagonal case and application Invited

Jun-ichi Segata

2018.5 

Refinement of Strichartz estimate for Airy equation in non-diagonal case and its application Invited International conference

Jun-ichi Segata

Critical Exponents and Nonlinear Evolution Equation 2017  2017.2 

Scattering problem for the generalized Korteweg-de Vries equation Invited International conference

Jun-ichi Segata

2017.1 

一般化Korteweg-de Vries方程式の散乱問題 Invited

東北大学数学教室談話会  2017.1 

Final state problem for the Klein-Gordon equation with quadratic gauge invariant nonlinearity in two dimensions Invited

Jun-ichi Segata

2016.12 

Modified scattering for the Klein-Gordon equation with quadratic gauge invariant nonlinearity in two dimensions Invited

Jun-ichi Segata

2016.12 

Refinement of Strichartz estimates for Airy equation and application Invited International conference

Jun-ichi Segata

Nonlinear Wave and Dispersive Equations, Kyoto 2016  2016.9 

Refinement of Strichartz estimates for Airy equation and application Invited International conference

Jun-ichi Segata

Fundamental Problems in Mathematical and Theoretical Physics  2016.7 

Screening of academic papers

Role(s)： Peer review

2020

Kyushu Journal of Mathematics International contribution

2019.4 - Present

Screening of academic papers

Role(s)： Peer review

2019

Screening of academic papers

Role(s)： Peer review

2018

Screening of academic papers

Role(s)： Peer review

2017

Screening of academic papers

Role(s)： Peer review

2016

非線形分散型方程式に対する分散波, 孤立波およびそれらの相互作用の解析

Grant number：25707004  2013 - 2016

科学研究費助成事業  若手研究(A)

非線形分散型方程式の分散波と孤立波の相互作用の解析

2012 - 2013

住友財団基礎科学研究助成

非線形分散型方程式の解の長時間挙動と特異極限について

Grant number：21740122  2009 - 2012

科学研究費助成事業  若手研究(B)

非線形分散型方程式の解の長時間挙動について

Grant number：19840036  2007 - 2008

科学研究費助成事業  若手研究(スタートアップ)

流体と水面波を記述する非線形偏微分方程式の適切性と解の挙動について

Grant number：16・06513  2004 - 2005

日本学術振興会  科学研究費助成事業  特別研究員奨励費

数学演習ＡⅠ

2023.4 - 2023.9   First semester

微分積分学Ⅰ

2023.4 - 2023.9   First semester

数学演習ＡⅡ

2022.10 - 2023.3   Second semester

微分積分学Ⅱ

2022.10 - 2023.3   Second semester

非線形解析大意

2022.4 - 2022.9   First semester

数学特論１１（非線形解析）

2022.4 - 2022.9   First semester

数学演習ＡⅠ

2022.4 - 2022.9   First semester

微分積分学Ⅰ

2022.4 - 2022.9   First semester

コアセミナーⅡ

2021.10 - 2022.3   Second semester

微分積分続論Ⅱ

2021.10 - 2022.3   Second semester

非線形解析大意

2021.4 - 2021.9   First semester

数学特論１１（非線形解析）

2021.4 - 2021.9   First semester

微分積分学・同演習Ⅲ

2021.4 - 2021.9   First semester

微分積分続論Ⅱ

2020.10 - 2021.3   Second semester

微分積分学・同演習Ｂ

2020.10 - 2021.3   Second semester

非線形解析大意

2020.4 - 2020.9   First semester

数学特論１１（非線形解析）

2020.4 - 2020.9   First semester

微分積分学・同演習Ａ

2020.4 - 2020.9   First semester

複素関数論

2019.10 - 2020.3   Second semester

微分積分学・同演習B

2019.10 - 2020.3   Second semester

微分積分学

2019.10 - 2020.3   Second semester

微分積分学・同演習A

2019.4 - 2019.9   First semester

線形代数

2019.4 - 2019.9   First semester