Updated on 2025/07/11

Information

 

写真a

 
ADE IRMA SURIAJAYA
 
Organization
Faculty of Mathematics Division of Algebra and Geometry Associate Professor
School of Sciences Department of Mathematics（Concurrent）
Graduate School of Mathematics Department of Mathematics（Concurrent）
Title
Associate Professor
Contact information
メールアドレス
Profile
Keywords: zeta functions, L-functions, derivatives, zeros, value distribution, prime numbers, Goldbach problems Kakenhi project number: 18K13400, 22K13895 Member of Mathematical Society of Japan (From May 2019 on:) Visiting scientist of RIKEN iTHEMS
Homepage
External link

Research Areas

  • Natural Science / Algebra

Degree

  • Master of Mathematical Science

  • Doctor of Philosophy (Mathematical Science)

Research History

  • (１) 理化学研究所　数理創造プログラム　基礎科学特別研究員 (2017年4月〜2019年3月) (２) 名古屋大学大学院多元数理科学研究科　学術振興会特別研究員-PD (2016年8月〜2017年3月)   

Education

  • Nagoya University   Graduate School of Mathematics  

    2014.4 - 2016.7

    　 More details

    Notes：Ph.D.

  • Nagoya University   Graduate School of Mathematics  

    2012.4 - 2014.3

    　 More details

    Country：Japan

    Notes：Master of Mathematical Science

  • Nagoya University   School of Science   Department of Mathematics

    2011.10 - 2012.3

    　 More details

    Country：Japan

    Notes：研究生

  • Nanjing University of Aeronautics and Astronautics   College of Science   Information and Computation Science

    2010.8 - 2011.7

    　 More details

    Country：China

    Notes：Bachelor of Science

  • Nagoya University   School of Engineering  

    2009.9 - 2010.8

    　 More details

    Country：Japan

    Notes：NUPACE Student Exchange Program

  • Nanjing University of Aeronautics and Astronautics   College of International Education   Aeronautical Engineering

    2007.9

    　 More details

    Country：China

    Notes：学部

▼display all

Research Interests・Research Keywords

  • Research theme： Distribution of zeros and values of zeta functions and L-functions and their derivatives, connection to the distribution of prime numbers

    Keyword： zeta functions, L-functions, derivatives, zeros, value distribution, distribution of prime numbers

    Research period： 2013.6

Awards

  • 名古屋大学学術奨励賞

    2015.6   名古屋大学   Nagoya University Outstanding Graduate Student Award

Papers

  • Conditional lower bounds on the distribution of central values: the case of modular forms International coauthorship

    @Didier Lesesvre, Ade Irma Suriajaya

    2026

    　More details

    Radziwill and Soundararajan unveiled a connection between low-lying zeros and central values of L-functions, which they instantiated in the case of quadratic twists of an elliptic curve. This paper addresses the case of the family of modular forms in the level aspect, and proves that the logarithms of central values of associated L-functions approximately distribute along a normal law with mean -1/2 loglog c(f) and variance loglog c(f), where c(f) is the analytic conductor of f, as predicted by the Keating-Snaith conjecture.

  • Pair Correlation Conjecture for the Zeros of the Riemann Zeta-function I: Simple and Critical Zeros International coauthorship

    @Daniel Alan Goldston, @Junghun Lee, @Jordan Schettler, Ade Irma Suriajaya

    2026

    　More details

    Montgomery in 1973 introduced the Pair Correlation Conjecture (PCC) for zeros of the Riemann zeta-function. He also showed that a stronger conjecture would imply that asymptotically 100% of the zeros are simple. His reasoning to support these two conjectures made free use of the Riemann Hypothesis (RH). Building on Montgomery's approach, Gallagher and Mueller proved in 1978 that PCC under RH implies that 100% of the zeros are simple, but we show here that their method does not actually require RH. Thus Montgomery's second conjecture follows from his PCC conjecture. Recent work has shown that one can use pair correlation methods to obtain information not only on the vertical distribution of zeros, but also on the horizontal distribution. Applying this idea to Gallagher and Mueller's method, we show that PCC implies that asymptotically 100% of the zeros are both simple and on the critical line.

  • Pair Correlation of Zeros of the Riemann Zeta Function I: Proportions of Simple Zeros and Critical Zeros International coauthorship

    @Siegfred Alan C. Baluyot, @Daniel Alan Goldston, Ade Irma Suriajaya, @Caroline L. Turnage-Butterbaugh

    2026

    　More details

    Assuming the Riemann Hypothesis (RH), Montgomery proved a theorem in 1973 concerning the pair correlation of zeros of the Riemann zeta-function and applied this to prove that at least 2/3 of the zeros are simple. In this paper, we investigate the versatility of the pair correlation method and show, for the first time, that it can be used to prove results on the horizontal distribution of zeros of the Riemann zeta-function.

    In earlier work we showed how to remove RH from Montgomery's theorem and, in turn, obtain results on simple zeros assuming conditions on the zeros that are weaker than RH. Here we assume a more general condition, namely that all the zeros ρ = β+iγ with T<γ≤ 2T are in a narrow vertical box centered on the critical line with width b/(log T), where b→0 as T→ ∞. We first prove the generalization of Montgomery's result that at least 2/3 of zeros are simple, and we then prove the new result that the pair correlation method yields at least 2/3 of the zeros on the critical line. We also use the pair correlation method to prove that at least 1/3 of the zeros are both simple and on the critical line, a result already known unconditionally using different methods.

  • The Average Number of Goldbach Representations and Zero-Free Regions of the Riemann Zeta-Function Reviewed International coauthorship International journal

    @Keith Billington, @Maddie Cheng, @Jordan Schettler, Ade Irma Suriajaya

    Int. J. Number Theory   2025.3

    　More details

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

    In this paper, we prove an unconditional form of Fujii's formula for the average number of Goldbach representations and show that the error in this formula is determined by a general zero-free region of the Riemann zeta-function, and vice versa. In particular, we describe the error in the unconditional formula in terms of the remainder in the Prime Number Theorem which connects the error to zero-free regions of the Riemann zeta-function.

    DOI： 10.1142/S1793042125500150

  • An Unconditional Montgomery Theorem for Pair Correlation of Zeros of the Riemann Zeta Function Invited Reviewed International coauthorship International journal

    @Siegfred Alan C. Baluyot, @Daniel Alan Goldston, Ade Irma Suriajaya, @Caroline L. Turnage-Butterbaugh

    Acta Arith.   214   357 - 376   2024.4

    　More details

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

    Assuming the Riemann Hypothesis (RH), Montgomery proved a theorem concerning pair correlation of zeros of the Riemann zeta-function. One consequence of this theorem is that, assuming RH, at least 67.9% of the nontrivial zeros are simple. Here we obtain an unconditional form of Montgomery's theorem and show how to apply it to prove the following result on simple zeros: Assuming all the zeros ρ=β+iγ of the Riemann zeta-function such that T^{3/8}<γ\le T satisfy |β-1/2|<1/(2log T), then, as T tends to infinity, at least 61.7% of these zeros are simple. The method of proof neither requires nor provides any information on whether any of these zeros are on or not on the critical line where β=1/2. We also obtain the same result under the weaker assumption of a strong zero-density hypothesis.

    DOI： 10.4064/aa230612-20-3

  • On an Average Goldbach Representation Formula of Fujii Reviewed International coauthorship International journal

    @Daniel A. Goldston, Ade Irma Suriajaya

    Nagoya Math. J.   250   511 - 532   2023.1

    　More details

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

    DOI： 10.1017/nmj.2022.44

  • Exceptional zeros and the Goldbach problem Reviewed International coauthorship International journal

    @John B. Friedlander, @Daniel A. Goldston, @Henryk Iwaniec, Ade Irma Suriajaya

    J. Number Theory   233   78 - 86   2022.4

    　More details

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

    We show that the assumption of a weak form of the Hardy-Littlewood conjecture on the Goldbach problem suffices to disprove the possible existence of exceptional zeros of Dirichlet L-functions.

    DOI： 10.1016/j.jnt.2021.06.004

  • The error term in the Cesàro mean of the prime pair singular series Reviewed International coauthorship International journal

    @Daniel A. Goldston, Ade Irma Suriajaya

    J. Number Theory   227   144 - 157   2021.10

    　More details

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

    We show that the error term in the asymptotic formula for the Cesàro mean of the singular series in the Goldbach and the Hardy-Littlewood prime-pair conjectures cannot be too small and oscillates.

    DOI： 10.1016/j.jnt.2021.03.004

  • A singular series average and the zeros of the Riemann zeta-function Reviewed International coauthorship International journal

    @Daniel A. Goldston, Ade Irma Suriajaya

    Acta Arith.   200   71 - 90   2021.6

    　More details

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

    We show that the Riesz mean of the singular series in the Goldbach and the Hardy-Littlewood Prime Pair Conjectures has an asymptotic formula with an error term that can be expressed as an explicit formula that depends on the zeros of the Riemann zeta-function. Unconditionally this error term can be shown to oscillate, while conditionally it can be shown to oscillate between sharp bounds.

    DOI： 10.4064/aa200821-24-2

  • The Values of the Riemann Zeta-Function on Discrete Sets Invited Reviewed International coauthorship International journal

    @Junghun Lee, @Athanasios Sourmelidis, @Jörn Steuding, Ade Irma Suriajaya

    Advanced Studies in Pure Mathematics, Proceedings of Various Aspects of Multiple Zeta Functions — in honor of Professor Kohji Matsumoto’s 60th birthday   84   315 - 334   2020.4

    　More details

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

    DOI： 10.2969/aspm/08410315

  • Note on the number of zeros of $\zeta^{(k)}(s)$ Reviewed International coauthorship International journal

    @Fan Ge, Ade Irma Suriajaya

    Ramanujan J.   55   661 - 672   2020.3

    　More details

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

    Assuming the Riemann hypothesis, we prove that

    N_k(T) = T/(2π) log(T/(4πe)) + O_k(log(T)/loglog(T)}),

    where N_k(T) is the number of zeros of ζ^{(k)}(s) in the region
    0 < Im s ≤ T. We further apply our method and obtain a zero counting formula for the derivative of Selberg zeta functions, improving earlier work of Luo.

    DOI： 10.1007/s11139-019-00219-z

  • Zeros of the first derivative of Dirichlet L-functions Reviewed International journal

    @Hirotaka Akatsuka, Ade Irma Suriajaya

    J. Number Theory   184   300 - 329   2018.3

    　More details

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

    DOI： 10.1016/j.jnt.2017.08.023

  • Two estimates on the distribution of zeros of the first derivative of Dirichlet L-functions under the generalized Riemann hypothesis Reviewed International journal

    Ade Irma Suriajaya

    J. Théor. Nombres Bordeaux   29 ( 2 )   471 - 502   2017.5

    　More details

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

    DOI： 10.5802/jtnb.988

  • An ergodic value distribution of certain meromorphic functions Reviewed International journal

    @Junghun Lee, Ade Irma Suriajaya

    J. Math. Anal. Appl.   445 ( 1 )   125 - 138   2017.1

    　More details

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

    DOI： 10.1016/j.jmaa.2016.07.064

  • On the zeros of the k-th derivative of the Riemann zeta function under the Riemann hypothesis Reviewed International journal

    Ade Irma Suriajaya

    Funct. Approx. Comment. Math   53 ( 1 )   69 - 95   2015.10

    　More details

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

    DOI： 10.7169/facm/2015.53.1.5

  • The average number of Goldbach representations over multiples of q Reviewed International journal

    Karin Ikeda, Ade Irma Suriajaya

    Functiones et Approximatio, Commentarii Mathematici   2025

    　More details

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

    DOI： 10.7169/facm/240922-30-1

  • Mean-Values Associated with Generalized Schemmel's Function Invited Reviewed International coauthorship International journal

    @Jörn Steuding, Ade Irma Suriajaya

    Ann. Univ. Sci. Budapest. Sect. Comput.   ( 54 )   307 - 319   2023.9

    　More details

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

  • The a-points of the Riemann zeta-function and the functional equation Invited Reviewed International coauthorship International journal

    @Athanasios Sourmelidis, @Jörn Steuding, Ade Irma Suriajaya

    In: Number Theory in Memory of Eduard Wirsing (2023), H. Maier et al. (eds.), Springer Nature Switzerland AG   ( 21 )   307 - 321   2023.8

    　More details

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

    DOI： 10.1007/978-3-031-31617-3_21

  • On a smoothed average of the number of Goldbach representations Invited Reviewed International coauthorship International journal

    @Daniel A. Goldston, Ade Irma Suriajaya

    In: Number Theory in Memory of Eduard Wirsing (2023), H. Maier et al. (eds.), Springer Nature Switzerland AG   ( 10 )   145 - 156   2023.4

    　More details

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

    DOI： 10.1007/978-3-031-31617-3_10

  • Zeros of derivatives of L-functions in the Selberg class on Re(s)<1/2 Reviewed International coauthorship International journal

    @Sneha Chaubey, @Suraj Singh Khurana, Ade Irma Suriajaya

    Proc. Amer. Math. Soc.   151   1855 - 1866   2023.2

    　More details

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

    DOI： 10.1090/proc/16251

    Repository Public URL： https://hdl.handle.net/2324/6790334

  • Riemann-Type Functional Equations -- Julia Line and Counting Formulae -- Reviewed International coauthorship International journal

    @Athanasios Sourmelidis, @Jörn Steuding, Ade Irma Suriajaya

    Indag. Math.   33 ( 6 )   1236 - 1262   2022.11

    　More details

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

    DOI： 10.1016/j.indag.2022.08.002

  • The Prime Number Theorem and Pair Correlation of Zeros of the Riemann Zeta-Function Reviewed International coauthorship International journal

    @Daniel A. Goldston, Ade Irma Suriajaya

    Res. Number Theory   8 ( 71 )   2022.9

    　More details

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

    DOI： 10.1007/s40993-022-00371-4

  • Weighted one-level density of low-lying zeros of Dirichlet L-functions Reviewed International journal

    @Shingo Sugiyama, Ade Irma Suriajaya

    Res. Number Theory   8 ( 55 )   2022.8

    　More details

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

    DOI： 10.1007/s40993-022-00359-0

  • Riemann-Type Functional Equations -- Dirichlet Polynomial Approximations and a Weak Gram Law -- Reviewed International coauthorship International journal

    @Athanasios Sourmelidis, @Jörn Steuding, Ade Irma Suriajaya

    Acta Arith.   204   97 - 113   2022.6

    　More details

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

    DOI： 10.4064/aa210111-13-4

  • Dirichlet Series with Periodic Coefficients and their Value-Distribution Near the Critical Line Reviewed International coauthorship International journal

    @Athanasios Sourmelidis, @Jörn Steuding, Ade Irma Suriajaya

    Proceedings of the Steklov Institute of Mathematics, Analytic and Combinatorial Number Theory: Special issue in commemoration of the 130th birth anniversary of Academician Ivan Matveevich Vinogradov   314 ( 1 )   238 - 263   2021.10

    　More details

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

    DOI： 10.1134/S0081543821040118

  • A Sum of Negative Degrees of the Gaps Values in Two-Generated Numerical Semigroups and Identities for the Hurwitz Zeta Function Invited Reviewed International coauthorship International journal

    @Leonid G. Fel, @Takao Komatsu, Ade Irma Suriajaya

    In: Nathanson M.B. (eds) Combinatorial and Additive Number Theory IV. CANT 2020. Springer Proceedings in Mathematics & Statistics, Springer, Cham.   347   151 - 160   2021.8

    　More details

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

    DOI： 10.1007/978-3-030-67996-5_8

  • Stieltjes constants of $L$-functions in the extended Selberg class Reviewed International coauthorship International journal

    @Shōta Inoue, @Sumaia Saad Eddin, Ade Irma Suriajaya

    Ramanujan J.   55   609 - 621   2021.3

    　More details

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

    DOI： 10.1007/s11139-021-00391-1

  • A sum of negative degrees of the gaps values in 2 and 3-generated numerical semigroups Reviewed International coauthorship International journal

    @Leonid G. Fel, @Takao Komatsu, Ade Irma Suriajaya

    Annales Mathematicae et Informaticae   52   85 - 95   2020.9

    　More details

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

    DOI： 10.33039/ami.2020.08.001

  • Value-Distribution of the Riemann Zeta-Function along its Julia Lines Invited Reviewed International coauthorship International journal

    @Jörn Steuding, Ade Irma Suriajaya

    Comput. Methods Funct. Theory   20 ( 3-4 )   389 - 401   2020.4

    　More details

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

    DOI： 10.1007/s40315-020-00316-x

  • Some probabilistic value distributions of the Riemann zeta function and its derivatives Reviewed International journal

    @Junghun Lee, @Tomokazu Onozuka, Ade Irma Suriajaya

    Proc. Japan Acad. Ser. A Math. Sci.   92 ( 7 )   82 - 83   2016.7

    　More details

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

    DOI： 10.3792/pjaa.92.82

▼display all

Presentations

  • Pair correlation of zeros of the Riemann zeta-function, and 100% simple zeros and zeros on the critical line Invited International conference

    Ade Irma Suriajaya

    CIRM Workshop: Prime numbers and arithmetic randomness  2025.6 

    　More details

    Event date： 2025.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：CIRM   Country：France  

    Assuming the Riemann Hypothesis (RH), Montgomery (1973) proved a theorem concerning the pair correlation of nontrivial zeros of the Riemann zeta-function, and introduced the Pair Correlation Conjecture (PCC) for these zeros. One consequence of the theorem was that, under RH, at least 2/3 of the zeros are simple, while PCC together with RH improved this proportion to 100%. In earlier papers, we have shown an unconditional version of this theorem of Montgomery and how to obtain the same proportion of simple zeros under a much weaker hypothesis than RH. We have furthermore found a connection to finding proportion of zeros on the critical line. This is joint work with Siegfred Alan C. Baluyot, Daniel Alan Goldston, and Caroline L. Turnage-Butterbaugh. Recently, with Daniel Goldston, Junghun Lee and Jordan Schettler, we showed that Montgomery's PCC can also be formulated without RH and still implies that asymptotically 100% of the zeros are simple. In addition, we also showed that such vertical distribution of zeros forces the zeros to be on the critical line, that is, RH is asymptotically true. In this talk, I introduce these results and briefly explain our key ideas.

  • Removing the Riemann Hypothesis from the pair correlation method for zeros of the Riemann zeta-function Invited International conference

    Ade Irma Suriajaya

    Asymptotic Counting and L-Functions (Pieter Moree's 60th Birthday Conference)  2025.5 

    　More details

    Event date： 2025.5

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

    Venue：Max Planck Institute for Mathematics   Country：Germany  

    Assuming the Riemann Hypothesis (RH), Montgomery (1973) proved a theorem concerning the pair correlation of nontrivial zeros of the Riemann zeta-function. One consequence of this theorem was that, under RH, at least 2/3 of the zeros are simple. In earlier papers, we have shown an unconditional version of this theorem of Montgomery and how to obtain the same proportion of simple zeros under a much weaker hypothesis than RH. We have furthermore found a connection to finding proportion of zeros on the critical line. This is joint work with Siegfred Alan C. Baluyot, Daniel Alan Goldston, and Caroline L. Turnage-Butterbaugh. As a follow-up to this work, with Daniel Goldston, Junghun Lee and Jordan Schettler, we noticed that Montgomery's Pair Correlation Conjecture can also be formulated without RH. Its implication is that almost all zeros of the Riemann zeta-function are simple and on the critical line.

  • Pair correlation of zeros of the Riemann zeta-function, and the proportion of simple zeros and zeros on the critical line Invited International conference

    Ade Irma Suriajaya

    SJSU Math/Stats Colloquium  2025.3 

    　More details

    Event date： 2025.3

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

    Venue：San José State University   Country：United States  

    Assuming the Riemann Hypothesis (RH), Montgomery (1973) proved a theorem concerning the pair correlation of nontrivial zeros of the Riemann zeta-function. One consequence was that, under RH, at least 2/3 of the zeros are simple. We showed in a 2024 paper that a generalization of this theorem of Montgomery holds unconditionally and that at least 2/3 of the zeros are simple zeros under weaker conditions than RH. There are two types of hypotheses we can use: a constraint on the location of zeros and zero density assumptions. In a 2025 preprint, we discovered that our method actually proves the proportion of zeros on the critical line is the same as the proportion of simple zeros. This is joint work with Siegfred Alan C. Baluyot, Daniel Alan Goldston, and Caroline L. Turnage-Butterbaugh. As a follow-up, with Daniel Goldston, Junghun Lee and Jordan Schettler, we prove that the Pair Correlation Conjecture for zeros of the Riemann zeta-function, which does not depend on RH, implies that asymptotically 100% of the zeros are simple and on the critical line.

  • Goldbach counting and Zeta Zeros Invited International conference

    Ade Irma Suriajaya

    2024.12 

    　More details

    Event date： 2024.12

    Language：Korean   Presentation type：Oral presentation (general)  

    Venue：KIAS   Country：Korea, Republic of  

    The Goldbach conjecture asks if we can always write an even number greater than or equal to 4, as a sum of two prime numbers. This will imply that all integers at least 6 can be written as a sum of three primes. The latter for odd integers ≥ 7 is a weaker conjecture and has recently been proven by Harald Helfgott. The even number case remains unsolved.
    We introduce the conjecture in a quantitative form due to G.H. Hardy and J.E. Littlewood in 1919 (with details published in 1923). A weaker version of this conjecture implies the non-existence of ``exceptional zeros” of certain L-functions. This is joint work with John B. Friedlander, Daniel A. Goldston and Henryk Iwaniec.
    We also introduce the notion of non-vanishing regions of the Riemann zeta function and its connection to the prime number theorem. The analogue for Dirichlet L-functions also holds except for a possible real zero which we call an ``exceptional zero”.

    Counting the number of Goldbach representations itself is difficult, and taking its average tells us a bit more information. In fact, the asymptotic formula for the average number of Goldbach representations is very closely related to the quantitative form of the Prime Number Theorem (PNT) and the error is determined by a non-vanishing region of the Riemann zeta-function. This is obtained in the student project with Keith Billington and Maddie Cheng from San Jose State University, together with Jordan Schettler.

  • An Unconditional Montgomery Theorem and Simple Zeros of the Riemann Zeta-Function Invited International conference

    Ade Irma Suriajaya

    Rencontres de théorie analytique et élémentaire des nombres  2023.9 

    　More details

    Event date： 2023.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Institut Henri Poincaré   Country：France  

    Assuming the Riemann Hypothesis (RH), Montgomery (1973) proved a theorem concerning the pair correlation of nontrivial zeros of the Riemann zeta-function. One consequence of this theorem was that, under RH, at least 2/3 of the zeros are simple. We show that this theorem of Montgomery holds unconditionally. As an application, under a much weaker hypothesis than RH, we show that at least 61.7% of zeros of the Riemann zeta-function are simple. This weaker hypothesis does not require that any of the zeros are on the half-line. We can further weaken the hypothesis using a density hypothesis. Montgomery's theorem is a statement about the behavior of a certain function within the interval [-1,1] and it is conjectured to hold beyond that interval as well. This conjecture, assuming RH, implies that almost all zeros of the Riemann zeta-function are simple. As opposed to Montgomery's conjecture, the "Alternative Hypothesis" conjectures a completely different behavior of the function. If time allows, I would like to also briefly introduce related results under this Alternative Hypothesis.

  • The Pair Correlation Conjecture, the Alternative Hypothesis, and an Unconditional Montgomery Theorem Invited International conference

    Ade Irma Suriajaya

    CIRM Workshop: Universality, Zeta-Functions, and Chaotic Operators  2023.8 

    　More details

    Event date： 2023.8

    Language：English   Presentation type：Oral presentation (general)  

    Venue：CIRM   Country：France  

    Assuming the Riemann Hypothesis (RH), Montgomery (1973) proved a theorem concerning the pair correlation of nontrivial zeros of the Riemann zeta-function. One consequence of this theorem was that, under RH, at least 2/3 of the zeros are simple. We show that this theorem of Montgomery holds unconditionally. Furthermore, under a much weaker hypothesis than RH, we show that at least 61.7% of zeros of the Riemann zeta-function are simple. This weaker hypothesis does not require that any of the zeros are on the half-line. In this talk, we will also discuss how to improve this result. Montgomery's theorem states an asymptotic behavior of a function F(α) which captures the pair correlation of nontrivial zeros of the Riemann zeta-function in the interval [-1,1] and he gave the now famous "pair correlation conjecture" predicting the behavior of F(α) beyond this integral. This conjecture, also assuming RH, implies that almost all zeros of the Riemann zeta-function are simple. An alternative to Montgomery's conjecture, known as the Alternative Hypothesis (AH) is an antithetical statement that consecutive zeros of the Riemann zeta-function are spaced at multiples of half of their average spacing. This hypothesis arose in the mid 1990s and has been studied by several authors, including Conrey and Iwaniec (2002), Farmer, Gonek and Lee (2014), Baluyot (2016), Lagarias and Rodgers (2020). We examine further consequences of AH and show that, under RH, AH seems to allow for a certain percentage of multiple zeros. We also prove that a slightly stronger version of AH implies that almost all zeros of the Riemann zeta-function are simple. This is joint work with Siegfred Alan C. Baluyot, Daniel Alan Goldston, and Caroline L. Turnage-Butterbaugh.

  • The Pair Correlation Conjecture, the Alternative Hypothesis, and an Unconditional Montgomery Theorem Invited International conference

    Ade Irma Suriajaya

    RIMS Workshop for Women in Zeta Functions and Their Representations  2023.3 

    　More details

    Event date： 2023.3

    Language：English   Presentation type：Oral presentation (general)  

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

    Other Link： https://sites.google.com/view/rims2022zetafunctions-en/top

  • ゴールドバッハ表現の平均個数評価とリーマンゼータ関数の零点との関係 Invited

    Ade Irma Suriajaya

    筑波セミナー  2022.11 

    　More details

    Event date： 2022.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

    280年前にゴールドバッハは6以上の偶数が必ず二つの奇素数の和として書き表せると予想した。ゴールドバッハ問題を調べるために、偶数を二つの奇素数の和として書き表し、その表し方の個数を数えればよい。それが常に正であることとゴールドバッハ予想が成り立つことと同値である。実際の解析では、正の整数を二つの素数として表現する方法をそのまま数えるより、特殊な関数の重みで数えたほうが数学的に扱いやすい場合がある。そのような重み付き表現は「ゴールドバッハ表現」と通称され、ゴールドバッハ表現の個数の平均評価はリーマンゼータ関数の零点によって与えられる。そのゴールドバッハ表現の個数の平均評価は1991年にFujiiにより初めて与えられたが、リーマン予想が成り立つことを条件としたものである。その評価における誤差項は2010年にBhowmikとSchlage-Puchta、また更に2012年にLanguascoとZaccagniniにより改良された。一般的に、リーマン予想の仮定を外しても、その誤差評価は素数定理の場合とほぼ同様であり、素数を数える場合と同じく、リーマンゼータ関数の非零領域によって記述できる。この講演では、これらの評価を紹介し、また、リーマンゼータ関数の零点に関するいくつかの評価による更なる改良も説明する。この講演で紹介する研究は主にサンノゼ州立大学のDaniel Goldston氏との共同研究である。

  • Goldbach's Conjecture, the Riemann Hypothesis and problems on twin primes in Number Theory, and recent results relating Goldbach and prime pair problems to zeros of L-functions Invited International conference

    Ade Irma Suriajaya

    Women in Mathematics  2022.9 

    　More details

    Event date： 2022.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

    Number Theory has a very long history that dates back thousands of years. The main goal of this study is to understand properties of numbers which essentially can be reduced to understanding prime numbers. Although we have the outstanding Prime Number Theorem, more precise information about the distribution of prime numbers is mostly unknown. For example, it is also not known if there are infinitely many pairs of prime numbers having difference 2, the so-called twin prime pairs. Recent breakthroughs in Analytic Number Theory have succeeded in showing the infinitude of prime pairs with small gaps, which is the contribution of Yitang Zhang, one of this year's Fields medalists, James Maynard, and also Terrence Tao. The 280-year-old Goldbach's conjecture and the Riemann hypothesis which is now over 160 years old are also among the most famous yet important unsolved problems in Analytic Number Theory. The Riemann Hypothesis is a conjecture about the location of zeros of the Riemann zeta function. The importance of this problem not only in Number Theory but also many other areas of Mathematics and even Physics is reflected in many known equivalent statements. In Analytic Number Theory alone, we know the equivalence between the Riemann Hypothesis and many prime distribution related problems. Its equivalence to Goldbach related problems is also known. It is important to note that Goldbach's conjecture itself is an independent problem to the Riemann Hypothesis and neither is stronger than the other. In this talk, I would like to introduce a few interesting recent results in this direction.

  • Pair Correlation of Zeta-Zeros and Two Problems on Primes Invited International conference

    Daniel A. Goldston

    Number Theory Conference in honour of Kálmán Győry – János Pintz – András Sárközy  2022.7 

    　More details

    Event date： 2022.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Debrecen   Country：Hungary  

  • Distribution of zeros of the derivatives of the Riemann zeta function and its relations to zeros of the zeta function itself Invited International conference

    Ade Irma Suriajaya

    Boston University/Keio University Workshop 2019  2019.6 

    　More details

    Event date： 2019.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Boston University   Country：United States  

    Speiser in 1935 showed that the Riemann hypothesis, which claims that all nontrivial zeros of the Riemann zeta function lie on the straight line Re(s)=1/2, is equivalent to the first derivative of the Riemann zeta function having no zeros in the left-half of the critical strip. This result shows that the distribution of zeros of the Riemann zeta function is related to that of its derivatives. The number of zeros and the distribution of the real part of non-real zeros of the derivatives of the Riemann zeta function have been investigated by Berndt, Levinson, Montgomery, Akatsuka, Ge and myself. Berndt, Levinson, and Montgomery investigated the general case, meanwhile Akatsuka gave sharper estimates, which was further improved by Ge, for the first derivative case, under the truth of the Riemann hypothesis. I extended Akatsuka's result to higher order derivatives before the existence of Ge's result. Ge and I were later able to extend his idea to the case of higher order derivatives.

    I would like to introduce some important results in this direction, especially on how they are related to the distribution of zeros of the Riemann zeta function itself. Finally, I hope to be able to introduce necessary details for the improvement Ge and I obtained.

  • Generalized Schemmel's function and its associated mean-values Invited International conference

    Ade Irma Suriajaya

    The fifth mini symposium of the Roman Number Theory Association  2019.4 

    　More details

    Event date： 2019.4

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Università Roma Tre   Country：Italy  

  • Zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions Invited International conference

    Ade Irma Suriajaya

    The fourth mini symposium of the Roman Number Theory Association  2018.4 

    　More details

    Event date： 2018.4

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Università Roma Tre   Country：Italy  

    Speiser in 1935 showed that the Riemann hypothesis is equivalent to the first derivative of the Riemann zeta function having no zeros on the left-half of the critical strip. This result shows that the distribution of zeros of the Riemann zeta function is related to that of its derivatives. The number of zeros and the distribution of the real part of non-real zeros of the derivatives of the Riemann zeta function have been investigated by Berndt, Levinson, Montgomery, and Akatsuka. Berndt, Levinson, and Montgomery investigated the general case, meanwhile Akatsuka gave sharper estimates under the truth of the Riemann hypothesis. This result is further improved by Ge. In the first half of this talk, we introduce these results and generalize the result of Akatsuka to higher-order derivatives of the Riemann zeta function.Analogous to the case of the Riemann zeta function, the number of zeros and many other properties of zeros of the derivatives of Dirichlet L-functions associated with primitive Dirichlet characters were studied by Yildirim. In the second-half of this talk, we improve some results shown by Yildirim for the first derivative and show some new results. We also introduce two improved estimates on the distribution of zeros obtained under the truth of the generalized Riemann hypothesis. We also extend the result of Ge to these Dirichlet L-functions when the associated modulo is not small. Finally, we introduce an equivalence condition analogous to that of Speiser’s for the generalized Riemann hypothesis, stated in terms of the distribution of zeros of the first derivative of Dirichlet L-functions associated with primitive Dirichlet characters.

  • Simple Zeros and Critical Zeros of the Riemann Zeta-function Invited International conference

    Caroline Turnage-Butterbaugh

    Integers Conference 2025  2025.5 

    　More details

    Event date： 2025.5

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

    Venue：University of Georgia   Country：United States  

  • Pair correlation of zeros of the Riemann zeta-function, and the proportion of simple zeros and zeros on the critical line Invited International conference

    Junghun Lee

    KMS  2025.4 

    　More details

    Event date： 2025.4

    Language：Korean   Presentation type：Oral presentation (general)  

    Venue：KAIST   Country：Korea, Republic of  

  • リーマンゼータ関数の零点の対相関、単純零点と臨界零点の割合 Invited

    Ade Irma Suriajaya

    九州大学数理談話会  2025.4 

    　More details

    Event date： 2025.4

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

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

  • Removing the RH assumption in the pair correlation method of zeros of the Riemann zeta-function, and its applications Invited International conference

    Ade Irma Suriajaya

    UC Davis Algebraic Geometry and Number Theory Seminar  2025.4 

    　More details

    Event date： 2025.4

    Language：English   Presentation type：Oral presentation (general)  

    Venue：UC Davis   Country：United States  

  • Pair correlation of zeros of the Riemann zeta-function, zero density and simple zeros Invited International conference

    Ade Irma Suriajaya

    G-BRL LFANT 정수론 세미나  2025.2 

    　More details

    Event date： 2025.2

    Language：Korean   Presentation type：Oral presentation (general)  

    Venue：Chonnam National University Gwangju Campus   Country：Korea, Republic of  

  • リーマンゼータ関数の零点の対相関、単純零点の割合と零点密度 Invited

    Ade Irma Suriajaya

    第3回大分数論研究集会  2025.1 

    　More details

    Event date： 2025.1

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：J:COM ホルトホール大分サテライトキャンパスおおいた講義室.201会議室   Country：Japan  

  • Pair correlation of zeros of the Riemann zeta-function, zero density and simple zeros Invited International conference

    Ade Irma Suriajaya

    Bilecik Algebra & Number Theory  2024.12 

    　More details

    Event date： 2024.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Turkey  

  • Relation between low-lying zeros and central values Invited International conference

    Didier Lesesvre

    UBC Number Theory Seminar  2024.11 

    　More details

    Event date： 2024.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：PIMS, University of British Columbia   Country：Canada  

  • Relation between low-lying zeros and central values Invited International conference

    Didier Lesesvre

    Circle Method and Related Topics  2024.11 

    　More details

    Event date： 2024.10 - 2024.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Madhava & Ramanujan Lecture Hall, ICTS Bengaluru   Country：India  

  • The Error in Average Goldbach and Zeta Zeros Invited International conference

    Ade Irma Suriajaya

    2024.9 

    　More details

    Event date： 2024.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Université de Lille   Country：France  

  • The Goldbach Problem and Zeros of the Riemann Zeta Function Invited International conference

    Ade Irma Suriajaya

    Séminaire ADA  2024.9 

    　More details

    Event date： 2024.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Université du Littoral Côte d'Opale   Country：France  

  • Simple Zeros of the Riemann Zeta-function Invited International conference

    Caroline Turnage-Butterbaugh

    Analytic Number Theory and Arithmetic Statistics  2024.8 

    　More details

    Event date： 2024.8

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Université de Montréal   Country：Canada  

  • The average number of Goldbach representations over multiples of q

    Karin Ikeda

    第17回 数論女性の集まり(WINJ2024)  2024.6 

    　More details

    Event date： 2024.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京工業大学 大岡山キャンパス   Country：Japan  

  • A new phenomenon in the weighted one-level density for Dirichlet L-functions Invited International conference

    Ade Irma Suriajaya

    2024.3 

    　More details

    Event date： 2024.3

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Université de Lille   Country：France  

  • A weighted one-level density for Dirichlet L-functions with a new type of density Invited International conference

    Ade Irma Suriajaya

    MPIM Number Theory Seminar  2024.3 

    　More details

    Event date： 2024.3

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Max Planck Institute for Mathematics   Country：Germany  

  • On relations between L-functions and random matrix theory Invited

    Shingo Sugiyama

    量子場の数理とその周辺  2023.12 

    　More details

    Event date： 2023.12

    Language：Japanese   Presentation type：Oral presentation (general)  

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

  • Weighted density conjecture for families of L-functions Invited International conference

    Shingo Sugiyama

    Zeta Functions in OKINAWA 2023  2023.10 

    　More details

    Event date： 2023.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  • The average number of Goldbach representations and zero-free regions of the Riemann zeta-function International conference

    Ade Irma Suriajaya

    RIMS Workshop 2023: Analytic Number Theory and Related Topics  2023.10 

    　More details

    Event date： 2023.10

    Language：English   Presentation type：Oral presentation (general)  

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

    Other Link： http://trout.math.cst.nihon-u.ac.jp/~yasufuku/an_num2023e.html

  • The Average Number of Goldbach Representations and Zero-Free Regions of the Riemann Zeta Function International conference

    Ade Irma Suriajaya

    International Conference on Probability Theory and Number Theory 2023  2023.9 

    　More details

    Event date： 2023.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Grand Baltic Dunes   Country：Other  

  • An Unconditional Montgomery Theorem and Simple Zeros of the Riemann Zeta-Function Invited International conference

    Ade Irma Suriajaya

    MPIM Number Theory Lunch Seminar  2023.8 

    　More details

    Event date： 2023.8

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Max Planck Institute for Mathematics   Country：Germany  

  • Weighted distribution of low-lying zeros of L-functions in a family Invited International conference

    Shingo Sugiyama

    The eleventh Pan Asian Number Theory Conference (PANT 2023-Harbin)  2023.8 

    　More details

    Event date： 2023.8

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Harbin Institute of Technology   Country：China  

  • The Average Number of Goldbach Representations and Zero-Free Regions of the Riemann Zeta Function Invited International conference

    Ade Irma Suriajaya

    AMM-ICNA 2023  2023.5 

    　More details

    Event date： 2023.5 - 2023.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Thailand  

  • L関数の族の重み付き零点密度とランダム行列理論について Invited

    Shingo Sugiyama

    北陸数論セミナー  2023.5 

    　More details

    Event date： 2023.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：富山大学   Country：Japan  

  • 保型形式とL関数の多角的研究について, これまでとこれから Invited

    Shingo Sugiyama

    金沢大学 数理学談話会  2023.4 

    　More details

    Event date： 2023.4

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：金沢大学   Country：Japan  

  • Recent progress on the weighted density of low-lying zeros of L-functions in a family Invited International conference

    Shingo Sugiyama

    Number Theory in Tokyo  2023.3 

    　More details

    Event date： 2023.3

    Language：English   Presentation type：Oral presentation (general)  

    Venue：東京工業大学   Country：Japan  

  • Error of the average of Goldbach representations in relation to the prime number theorem International conference

    Ade Irma Suriajaya

    Oberwolfach Workshop 2245: Analytic Number Theory Tuesday Evening Circle of informal talks  2022.11 

    　More details

    Event date： 2022.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Mathematisches Forschungsinstitut Oberwolfach   Country：Germany  

    ゴールドバッハ表現の個数の平均評価と素数定理の近似公式との関係を明らかにしたことを紹介する。

  • Zeros of derivatives of L-functions in the Selberg class on the left-half plane and the left-half of the critical strip (Die Nullstellen der Ableitungen der L-Funktionen vor Selberg-Klasse, die an links vor kritischen Linie liegen Invited International conference

    Ade Irma Suriajaya

    Oberseminar Zahlentheorie  2022.11 

    　More details

    Event date： 2022.11

    Language：German   Presentation type：Oral presentation (general)  

    Venue：University of Würzburg   Country：Germany  

  • Zeros of derivatives of L-functions in the Selberg class on the left-half plane and the left-half of the critical strip International conference

    Ade Irma Suriajaya

    RIMS Workshop 2022: Analytic Number Theory and Related Topics  2022.10 

    　More details

    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  

    Other Link： http://www.math.sci.ehime-u.ac.jp/~yamasaki/RIMS/ANT2022_en.html

  • The one-level density for Dirichlet L-functions weighted by L-values Invited International conference

    Shingo Sugiyama

    9th Kyoto conference on automorphic forms  2022.6 

    　More details

    Event date： 2022.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：京都大学   Country：Japan  

  • Weighted One-level Density of Low-lying Zeros of Dirichlet L-Functions International conference

    Ade Irma Suriajaya

    Arithmetik an der A7  2022.6 

    　More details

    Event date： 2022.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Germany  

  • 対称べき L 関数の低い位置にある零点の重みつき密度について International conference

    Shingo Sugiyama

    RIMS共同研究(公開型)「保型形式、保型L関数とその周辺」  2022.1 

    　More details

    Event date： 2022.1

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

    Other Link： http://www.math.kobe-u.ac.jp/HOME/morimoto/RIMS-E.html

  • Goldbach's Conjecture and the Riemann Hypothesis in Number Theory, and Their Relations to Zeta Functions Invited International conference

    Ade Irma Suriajaya

    Catch-all Mathematical Colloquium of Japan  2022.1 

    　More details

    Event date： 2022.1

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

  • The average number of Goldbach representations, pair correlation of zeros of the Riemann zeta function and error term of the prime number theorem International conference

    Ade Irma Suriajaya

    RIMS Workshop 2021: Analytic Number Theory and Related Topics  2021.10 

    　More details

    Event date： 2021.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

  • The Hardy-Littlewood Goldbach Conjecture and Landau-Siegel zeros Invited International conference

    Ade Irma Suriajaya

    Incheon National University 13th International Symposium on Natural Sciences  2021.10 

    　More details

    Event date： 2021.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Korea, Republic of  

  • ゴールドバッハ表現と素数定理の誤差評価、リーマンゼータ関数の零点のペアコリレーション Invited

    Ade Irma Suriajaya

    2021大分整数論研究集会  2021.10 

    　More details

    Event date： 2021.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

  • The number of Goldbach representations and pair correlation of zeros of the Riemann zeta function International conference

    Ade Irma Suriajaya

    DMV-ÖMG Annual Conference 2021 Algebra, Algebraic Geometry and Number Theory Section  2021.9 

    　More details

    Event date： 2021.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Germany  

  • Die Goldbachschen Darstellungen und Landau-Siegel-Nullstellen der Dirichletschen L-Funktionen (Goldbach representations and Landau-Siegel zeros) International conference

    Ade Irma Suriajaya

    Arithmetik an der A7  2021.9 

    　More details

    Event date： 2021.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Germany  

  • Goldbach representations and exceptional zeros of Dirichlet L-functions Invited International conference

    Ade Irma Suriajaya

    Japan Europe Number Theory Exchange Seminar  2021.6 

    　More details

    Event date： 2021.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

  • ゴールドバッハ表現とディリクレL関数の例外的零点

    Ade Irma Suriajaya

    第14回数論女性の集まり(WINJ2021)  2021.6 

    　More details

    Event date： 2021.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

  • Goldbach Conjecture and Landau-Siegel Zeros Invited International conference

    Daniel Goldston

    AIM FRG seminar  2021.5 

    　More details

    Event date： 2021.5

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：United States  

  • Error term of the Riesz mean of Hardy-Littlewood singular series (Der Fehlerterm des Riesz-Mittel der singular series von Hardy und Littlewood) Invited International conference

    Ade Irma Suriajaya

    Arithmetik an der A7  2021.3 

    　More details

    Event date： 2021.3

    Language：German   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Germany  

  • Distribution of values of L-functions arising from a Riemann-type functional equation International conference

    Ade Irma Suriajaya

    International Conference on Analytic Number Theory dedicated to 75th anniversary of G.I. Arkhipov and S.M. Voronin  2020.12 

    　More details

    Event date： 2020.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Russian Federation  

  • Error term of the Riesz mean of Hardy-Littlewood singular series International conference

    Ade Irma Suriajaya

    RIMS Workshop: Problems and Prospects in Analytic Number Theory  2020.11 

    　More details

    Event date： 2020.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

    Other Link： https://sites.google.com/view/ant2020rims-e

  • Zeros of derivatives of the Riemann zeta function and relations to the Riemann hypothesis Invited International conference

    Ade Irma Suriajaya

    Tel Aviv Number Theory seminar  2020.10 

    　More details

    Event date： 2020.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Israel  

  • L関数のリーマン型関数等式のJulia線の周りでの値分布 Invited

    Ade Irma Suriajaya

    2020大分整数論研究集会  2020.10 

    　More details

    Event date： 2020.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

  • Hardy-Littlewoodのsingular seriesのRiesz平均における誤差項 Invited

    Ade Irma Suriajaya

    Friday Tea Time Zoom Seminar  2020.9 

    　More details

    Event date： 2020.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

  • Omega estimate of the error term in the Cesàro mean of the prime pair singular series Invited

    Ade Irma Suriajaya

    九州大学多重ゼータセミナー  2020.7 

    　More details

    Event date： 2020.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

  • The Julia line of a Riemann-type functional equation Invited International conference

    Ade Irma Suriajaya

    Number Theory during Lockdown  2020.6 

    　More details

    Event date： 2020.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：India  

  • An Upper Bound for Stieltjes Constants of L-functions in the Extended Selberg Class International conference

    Ade Irma Suriajaya

    FCK COVID-19  2020.4 

    　More details

    Event date： 2020.4

    Language：English   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Germany  

  • Value distribution of the Riemann zeta function around its Julia lines Invited International conference

    Ade Irma Suriajaya

    The 13th Young Mathematicians Conference on Zeta Functions  2020.2 

    　More details

    Event date： 2020.2

    Language：English   Presentation type：Oral presentation (general)  

    Venue：富山大学五福キャンパス   Country：Japan  

    Other Link： https://sites.google.com/view/zetawakate13eng/home

  • Immersed in math and numbers -- entering the world of Zeta functions Invited International conference

    Ade Irma Suriajaya

    Lecture on Pure and Applied Mathematics  2019.12 

    　More details

    Event date： 2019.12

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

    Venue：Universitas Padjadjaran   Country：Indonesia  

  • ゼータ関数とL関数、そして、それらに作られた世界 Invited

    Ade Irma Suriajaya

    理研-九大ジョイントワークショップ「数理が紡ぐ素粒子・原子核・宇宙」  2019.12 

    　More details

    Event date： 2019.12

    Language：Japanese   Presentation type：Oral presentation (general)  

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

  • Improved error estimate for the number of zeros of the derivatives of the Riemann zeta function International conference

    Ade Irma Suriajaya

    RIMS Workshop: Analytic Number Theory and Related Topics  2019.10 

    　More details

    Event date： 2019.10

    Language：English   Presentation type：Oral presentation (general)  

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

  • Analytic properties of the derivatives of zeta functions (ζ-函数的导函数的解析性质) Invited International conference

    Ade Irma Suriajaya

    2019.9 

    　More details

    Event date： 2019.9

    Language：Chinese   Presentation type：Oral presentation (general)  

    Venue：China University of Mining and Technology Beijing   Country：China  

  • Schemmel's function and its associated mean-values Invited International conference

    Ade Irma Suriajaya

    2019.9 

    　More details

    Event date： 2019.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kasetsart University   Country：Thailand  

  • On the error term estimate for the number of zeros of the derivatives of the Riemann zeta function Invited International conference

    Ade Irma Suriajaya

    Oberseminar Zahlentheorie  2019.8 

    　More details

    Event date： 2019.8

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Würzburg   Country：Germany  

  • Schemmel関数の平均値 — 後編

    Ade Irma Suriajaya

    第12回数論女性の集まり(WINJ12)  2019.5 

    　More details

    Event date： 2019.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京理科大学 神楽坂キャンパス   Country：Japan  

  • リーマンゼータ関数の縦線上の数列における値の分布 Invited

    Ade Irma Suriajaya

    九州大学多重ゼータセミナー  2019.5 

    　More details

    Event date： 2019.5

    Language：Japanese   Presentation type：Oral presentation (general)  

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

  • リーマンゼータ関数の導関数の零点個数評価について Invited

    Ade Irma Suriajaya

    九大代数学セミナー  2019.4 

    　More details

    Event date： 2019.4

    Language：Japanese   Presentation type：Oral presentation (general)  

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

  • Mean-values associated with Schemmel's function Invited International conference

    Ade Irma Suriajaya

    Oberseminar Zahlentheorie  2019.4 

    　More details

    Event date： 2019.4

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Würzburg   Country：Germany  

  • New results on the distribution of zeros of the derivatives of the Riemann zeta function International conference

    Ade Irma Suriajaya

    Value distribution of zeta and L-functions and related topics  2019.3 

    　More details

    Event date： 2019.3

    Language：English  

    Venue：理化学研究所   Country：Japan  

    Other Link： https://sites.google.com/view/zetawako2019

  • Mean-values associated with Schemmel's function

    Ade Irma Suriajaya

    日本数学会2019年度年会  2019.3 

    　More details

    Event date： 2019.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京工業大学 大岡山キャンパス   Country：Japan  

  • リーマンゼータ関数の導関数の零点〜その始まりとその先へ Invited

    Ade Irma Suriajaya

    愛媛大学代数セミナー  2019.3 

    　More details

    Event date： 2019.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：愛媛大学   Country：Japan  

  • The multiplication theorem of the Hurwitz zeta function by using sum of gaps in two-generated numerical semigroups Invited International conference

    Ade Irma Suriajaya

    2019.2 

    　More details

    Event date： 2019.2

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Institute of Mathematical Sciences   Country：India  

  • An upper bound for Stieltjes constants of L-functions in the Selberg class Invited International conference

    Ade Irma Suriajaya

    Number Theory Mini Workshop at Sophia  2019.1 

    　More details

    Event date： 2019.1

    Language：English   Presentation type：Oral presentation (general)  

    Venue：上智大学 市ヶ谷キャンパス   Country：Japan  

  • ゼータ関数の零点と素数と社会？

    Ade Irma Suriajaya

    第2回彩の国女性研究者ネットワークシンポジウム  2018.12 

    　More details

    Event date： 2018.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：埼玉大学   Country：Japan  

  • Values of the Riemann zeta function on vertical arithmetic progressions in the critical strip

    Ade Irma Suriajaya

    RIMS Workshop: Analytic Number Theory and Related Topics  2018.10 

    　More details

    Event date： 2018.10

    Language：Japanese   Presentation type：Oral presentation (general)  

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

    Other Link： https://sites.google.com/view/rimsanalyticnumbertheory2018/ホーム

  • ディリクレL関数の一階導関数の零点の分布 Invited

    Ade Irma Suriajaya

    代数学セミナー  2018.10 

    　More details

    Event date： 2018.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東北大学   Country：Japan  

  • リーマンゼータ関数とディリクレL関数の零点の分布及びそれらの導関数との関係 Invited

    Ade Irma Suriajaya

    2018大分鹿児島整数論研究集会  2018.10 

    　More details

    Event date： 2018.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：鹿児島大学 郡元キャンパス   Country：Japan  

  • Zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions International conference

    Ade Irma Suriajaya

    Number Theory Down Under 6  2018.9 

    　More details

    Event date： 2018.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：UNSW Canberra   Country：Australia  

  • Values of the Riemann zeta function on vertical arithmetic progressions in the critical strip International conference

    Ade Irma Suriajaya

    International Conference on Number Theory Dedicated to the 70th Birthdays of Professors Antanas Laurinčikas and Eugenijus Manstavičius  2018.9 

    　More details

    Event date： 2018.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Žilvinas (Palanga)   Country：Other  

  • Values of the Riemann zeta function on vertical arithmetic progressions in the critical strip International conference

    Ade Irma Suriajaya

    Conference on elementary and analytic number theory (ELAZ) 2018  2018.9 

    　More details

    Event date： 2018.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Max Planck Institute for Mathematics   Country：Germany  

  • Values of the Riemann zeta function on vertical arithmetic progressions in the critical strip International conference

    Ade Irma Suriajaya

    The 15th Canadian Number Theory Association Conference  2018.7 

    　More details

    Event date： 2018.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Laval University   Country：Canada  

  • Values of the Riemann zeta function on vertical arithmetic progressions in the critical strip Invited International conference

    Ade Irma Suriajaya

    Oberseminar Zahlentheorie  2018.5 

    　More details

    Event date： 2018.5

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Würzburg   Country：Germany  

  • Zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions Invited International conference

    Ade Irma Suriajaya

    Oberseminar Modularfunktionen  2018.5 

    　More details

    Event date： 2018.5

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Heidelberg   Country：Germany  

  • Zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions Invited International conference

    Ade Irma Suriajaya

    2018.5 

    　More details

    Event date： 2018.5

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Shandong University Weihai Campus   Country：China  

  • An approximate functional equation for the fourth moment of the Riemann zeta function on the critical line Invited International conference

    Ade Irma Suriajaya

    Oberseminar Zahlentheorie  2018.4 

    　More details

    Event date： 2018.4

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Würzburg   Country：Germany  

  • An approximate functional equation for the fourth moment of the Riemann zeta function on the critical line

    Ade Irma Suriajaya

    日本数学会2018年度年会  2018.3 

    　More details

    Event date： 2018.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京大学 駒場キャンパス   Country：Japan  

  • ゼータ関数とL関数へのBirkhoffエルゴード定理の応用 Invited

    Ade Irma Suriajaya

    量子論にまつわる数学と数論の連携探索２０１８  2018.3 

    　More details

    Event date： 2018.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：早稲田大学 Waseda共創館   Country：Japan  

  • Values of the Riemann zeta function on vertical arithmetic progressions in the critical strip Invited

    Ade Irma Suriajaya

    Analytic Number Theory Seminar  2018.2 

    　More details

    Event date： 2018.2

    Language：English   Presentation type：Oral presentation (general)  

    Venue：名古屋大学   Country：Japan  

  • ゼータ関数及びL関数の零点の分布 Invited

    Ade Irma Suriajaya

    第1回 岡潔女性数学者セミナー  2017.12 

    　More details

    Event date： 2017.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：奈良女子大学   Country：Japan  

  • リーマンゼータ関数とその導関数の零点の分布及びそれらの関係 Invited

    Ade Irma Suriajaya

    2017.11 

    　More details

    Event date： 2017.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京理科大学 野田キャンパス   Country：Japan  

  • Some improvements in estimates related to the distribution of zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions International conference

    Ade Irma Suriajaya

    RIMS Workshop: Analytic Number Theory and Related Areas  2017.10 

    　More details

    Event date： 2017.10 - 2017.11

    Language：English   Presentation type：Oral presentation (general)  

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

  • Distribution of zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions International conference

    Ade Irma Suriajaya

    Symposium for South Asian Women in Mathematics  2017.10 

    　More details

    Event date： 2017.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Tribhuvan University   Country：Nepal  

  • An approximate functional equation for the fourth moment of the Riemann zeta function on vertical arithmetic progressions on the critical line Invited International conference

    Ade Irma Suriajaya

    Oberseminar Zahlentheorie  2017.10 

    　More details

    Event date： 2017.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Würzburg   Country：Germany  

  • Distribution of zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions Invited International conference

    Ade Irma Suriajaya

    2017.9 

    　More details

    Event date： 2017.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：TU Graz   Country：Austria  

  • Values of the Riemann zeta function on vertical arithmetic progressions in the critical strip International conference

    Ade Irma Suriajaya

    Number Theory Week 2017 -- A conference on the occasion of the 60th birthday of Jerzy Kaczorowski  2017.9 

    　More details

    Event date： 2017.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Adam Mickiewicz University   Country：Poland  

  • Values of the Riemann zeta function on vertical arithmetic progressions in the critical strip Invited International conference

    Ade Irma Suriajaya

    Various Aspects of Multiple Zeta Functions –– Conference in Honor of Kohji Matsumoto’s 60th Birthday  2017.8 

    　More details

    Event date： 2017.8

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Nagoya University   Country：Japan  

    Other Link： https://sites.google.com/site/kohjimatsumoto60/english

  • Zeros of the Riemann zeta function and its derivatives Invited International conference

    Ade Irma Suriajaya

    KMITL Number theory seminar  2017.7 

    　More details

    Event date： 2017.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：KMITL   Country：Thailand  

  • Distribution of zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions International conference

    Ade Irma Suriajaya

    International Conference in Number Theory and Applications -- Conference in Honor of Vichain Laohakosol  2017.7 

    　More details

    Event date： 2017.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Kasetsart University   Country：Thailand  

  • A new zero-free region for the first derivative of Dirichlet L-functions Invited International conference

    Ade Irma Suriajaya

    Oberseminar Zahlentheorie  2017.7 

    　More details

    Event date： 2017.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Würzburg   Country：Germany  

  • An ergodic value distribution of certain meromorphic functions International conference

    Ade Irma Suriajaya

    30th Journées Arithmétiques  2017.7 

    　More details

    Event date： 2017.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Caen Normandy   Country：France  

  • ディリクレL関数の一階導関数の非零領域 Invited

    Ade Irma Suriajaya

    東工大 数論・幾何学セミナー  2017.6 

    　More details

    Event date： 2017.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京工業大学   Country：Japan  

  • ディリクレL関数の一階導関数の非零領域

    Ade Irma Suriajaya

    第10回数論女性の集まり(WINJ10)  2017.6 

    　More details

    Event date： 2017.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：早稲田大学   Country：Japan  

  • ディリクレL関数の一階導関数の零点の個数評価 Invited

    Ade Irma Suriajaya

    早稲田大学整数論セミナー  2017.6 

    　More details

    Event date： 2017.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：早稲田大学   Country：Japan  

  • ディリクレL関数の一階導関数の零点の分布

    Ade Irma Suriajaya

    日本数学会2017年度年会  2017.3 

    　More details

    Event date： 2017.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：首都大学東京   Country：Japan  

  • On the distribution of zeros of the first derivative of Dirichlet L-functions International conference

    Ade Irma Suriajaya

    Connections for Women: Analytic Number Theory  2017.2 

    　More details

    Event date： 2017.2

    Language：English  

    Venue：MSRI   Country：United States  

  • Distribution of zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions Invited International conference

    Ade Irma Suriajaya

    Number Theory Seminar  2016.12 

    　More details

    Event date： 2016.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：KIAS   Country：Korea, Republic of  

  • Distribution of zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions Invited International conference

    Ade Irma Suriajaya

    Algebra and Number Theory Seminar  2016.11 

    　More details

    Event date： 2016.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Rochester   Country：United States  

  • On the distribution of zeros of the first derivative of Dirichlet L-functions International conference

    Ade Irma Suriajaya

    The Sixth International Conference Analytic and Probabilistic Methods in Number Theory  2016.9 

    　More details

    Event date： 2016.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Vilnius University Conference and Seminar centre   Country：Other  

  • On the distribution of zeros of the first derivative of Dirichlet L-functions International conference

    Ade Irma Suriajaya

    Conference on elementary and analytic number theory (ELAZ) 2016  2016.9 

    　More details

    Event date： 2016.9

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Bundesinstitut für Erwachsenenbildung   Country：Austria  

  • On the distribution of zeros of the first derivative of Dirichlet L-functions International conference

    Ade Irma Suriajaya

    Conference on elementary and analytic number theory (ELAZ) 2016  2016.9 

    　More details

    Event date： 2016.9

    Language：English  

    Venue：Bundesinstitut für Erwachsenenbildung   Country：Austria  

  • Ergodic value distribution of zeta functions and L-functions Invited International conference

    Ade Irma Suriajaya

    Number Theory Day  2016.8 

    　More details

    Event date： 2016.8

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Würzburg   Country：Germany  

  • リーマンゼータ関数及びディリクレL関数の導関数の零点について Invited

    Ade Irma Suriajaya

    首都大整数論セミナー  2016.7 

    　More details

    Event date： 2016.7

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：首都大学東京   Country：Japan  

  • Distribution of zeros of the first derivative of Dirichlet L-functions Invited International conference

    Ade Irma Suriajaya

    Number Theory Seminar  2016.6 

    　More details

    Event date： 2016.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Academia Sinica   Country：Taiwan, Province of China  

  • Distribution of zeros of the first derivative of Dirichlet L-functions Invited International conference

    Ade Irma Suriajaya

    2016.6 

    　More details

    Event date： 2016.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：National Tsing Hua University   Country：Taiwan, Province of China  

  • An analogue of Speiser's theorem for Dirichlet L-functions Invited

    Ade Irma Suriajaya

    Analytic Number Theory Seminar  2016.6 

    　More details

    Event date： 2016.6

    Language：English   Presentation type：Oral presentation (general)  

    Venue：名古屋大学   Country：Japan  

  • An ergodic value distribution of zeta functions and L-functions

    Ade Irma Suriajaya

    第9回数論女性の集まり(WINJ9)  2016.5 

    　More details

    Event date： 2016.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：上智大学   Country：Japan  

  • ゼータ関数と L 関数への Birkhoff エルゴード定理の応用

    Ade Irma Suriajaya

    数論とエルゴード理論  2016.2 

    　More details

    Event date： 2016.2

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：金沢大学 サテライト・プラザ   Country：Japan  

  • On the distribution of zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions International conference

    Ade Irma Suriajaya

    Zeta Functions of Several Variables and Applications  2015.11 

    　More details

    Event date： 2015.11

    Language：English   Presentation type：Oral presentation (general)  

    Venue：名古屋大学   Country：Japan  

  • An ergodic value distribution of some class of zeta and L-functions Invited

    Ade Irma Suriajaya

    Analytic Number Theory Seminar  2015.10 

    　More details

    Event date： 2015.10

    Language：English   Presentation type：Oral presentation (general)  

    Venue：名古屋大学   Country：Japan  

  • Some probabilistic value distributions of the Riemann zeta function and its derivatives

    Ade Irma Suriajaya

    日本数学会2015年度秋季総合分科会  2015.9 

    　More details

    Event date： 2015.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：京都産業大学   Country：Japan  

  • リーマンゼータ関数及びその導関数の零点分布について

    Ade Irma Suriajaya

    第５０回函数論サマーセミナー  2015.9 

    　More details

    Event date： 2015.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：あだたらふれあいセンター   Country：Japan  

  • On the distribution of zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions International conference

    Ade Irma Suriajaya

    Arithmetic 2015: Silvermania  2015.8 

    　More details

    Event date： 2015.8

    Language：English  

    Venue：Brown University   Country：United States  

  • Some results on the zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions International conference

    Ade Irma Suriajaya

    29th Journées Arithmétiques  2015.7 

    　More details

    Event date： 2015.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Debrecen   Country：Hungary  

  • On the distribution of zeros of the derivatives of the Riemann zeta function and Dirichlet L-functions International conference

    Ade Irma Suriajaya

    Arithmetik an der A7  2015.7 

    　More details

    Event date： 2015.7

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Ulm   Country：Germany  

  • リーマンゼータ関数及びディリクレL関数の導関数の零点分布について

    Ade Irma Suriajaya

    第8回数論女性の集まり(WINJ8)  2015.5 

    　More details

    Event date： 2015.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：上智大学   Country：Japan  

  • Two Estimates on the Zeros of L'(s,χ) under the Generalized Riemann Hypothesis

    Ade Irma Suriajaya

    日本数学会2015年度年会  2015.3 

    　More details

    Event date： 2015.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：明治大学   Country：Japan  

  • On the Zeros of the Derivatives of the Riemann Zeta Function and Dirichlet L-functions Invited International conference

    Ade Irma Suriajaya

    Seminar / Colloquium on Mathematics Research (Nagoya University - Gadjah Mada University)  2015.3 

    　More details

    Event date： 2015.3

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Gadjah Mada University   Country：Indonesia  

  • 一般化されたリーマン予想の下でのディリクレL関数の対数関数の臨界線付近における挙動

    Ade Irma Suriajaya

    第11回数学総合若手研究集会  2015.3 

    　More details

    Event date： 2015.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：北海道大学   Country：Japan  

  • Two Estimates on the Zeros of L'(s,χ) under the Generalized Riemann Hypothesis Invited

    Ade Irma Suriajaya

    Analytic Number Theory Seminar  2014.12 

    　More details

    Event date： 2014.12

    Language：English   Presentation type：Oral presentation (general)  

    Venue：名古屋大学   Country：Japan  

  • On the zeros of the derivatives of the Riemann zeta function under the Riemann hypothesis International conference

    Ade Irma Suriajaya

    RIMS Workshop: Analytic Number Theory – Distribution and Approximation of Arithmetic Objects  2014.10 

    　More details

    Event date： 2014.10

    Language：English   Presentation type：Oral presentation (general)  

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

  • リーマンゼータ関数及びその導関数の零点について

    Ade Irma Suriajaya

    数学・数理科学専攻若手研究者のための異分野・異業種研究交流会  2014.10 

    　More details

    Event date： 2014.10

    Language：Japanese  

    Venue：東京大学 駒場キャンパス   Country：Japan  

  • On the Zeros of the k-th Derivative of the Riemann Zeta Function under the Riemann Hypothesis International conference

    Ade Irma Suriajaya

    International Congress of Mathematicians 2014  2014.8 

    　More details

    Event date： 2014.8

    Language：English   Presentation type：Oral presentation (general)  

    Venue：COEX   Country：Korea, Republic of  

  • On the Zeros of the Derivatives of the Riemann Zeta Function under the Riemann Hypothesis International conference

    Ade Irma Suriajaya

    International Congress of Women Mathematicians  2014.8 

    　More details

    Event date： 2014.8

    Language：English  

    Venue：Ewha Womans University   Country：Korea, Republic of  

  • On the Zeros of the k-th Derivative of the Riemann Zeta Function under the Riemann Hypothesis International conference

    Ade Irma Suriajaya

    Analytic Number Theory Workshop  2014.5 

    　More details

    Event date： 2014.5

    Language：English   Presentation type：Oral presentation (general)  

    Venue：University of Turku   Country：Finland  

  • リーマン予想の下でのリーマンゼータ関数のk階導関数の零点について

    Ade Irma Suriajaya

    日本数学会2014年度年会  2014.3 

    　More details

    Event date： 2014.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：学習院大学   Country：Japan  

  • リーマン予想の下でのリーマンゼータ関数のk階導関数の零点について

    Ade Irma Suriajaya

    第10回数学総合若手研究集会  2014.3 

    　More details

    Event date： 2014.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：北海道大学   Country：Japan  

  • リーマン予想の下でのリーマンゼータ関数のk階導関数の零点について

    Ade Irma Suriajaya

    第11回城崎新人セミナー  2014.2 

    　More details

    Event date： 2014.2

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：城崎総合支所   Country：Japan  

  • On the Zeros of the k-th Derivative of the Riemann Zeta Function under the Riemann Hypothesis

    Ade Irma Suriajaya

    第7回ゼータ若手研究集会  2014.2 

    　More details

    Event date： 2014.2

    Language：English   Presentation type：Oral presentation (general)  

    Venue：名古屋大学   Country：Japan  

  • リーマン予想の下でのリーマンゼータ関数のk階導関数の零点について Invited

    Ade Irma Suriajaya

    名古屋大学鏡ヶ池の整数論セミナー  2014.2 

    　More details

    Event date： 2014.2

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：名古屋大学   Country：Japan  

  • On the Zeros of the Second Derivative of the Riemann Zeta Function under the Riemann Hypothesis International conference

    Ade Irma Suriajaya

    The 7th Japan-China Seminar on Number Theory  2013.10 

    　More details

    Event date： 2013.10 - 2013.11

    Language：English   Presentation type：Oral presentation (general)  

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

  • リーマン予想の下でのリーマンゼータ関数の二階導関数の零点について Invited

    Ade Irma Suriajaya

    名古屋大学解析数論セミナー  2013.10 

    　More details

    Event date： 2013.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：名古屋大学   Country：Japan  

  • リーマンゼータ関数の一階微分の零点について

    Ade Irma Suriajaya

    第6回数論女性の集まり(WINJ6)  2013.6 

    　More details

    Event date： 2013.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：早稲田大学   Country：Japan  

  • リーマンゼータ関数の関数等式：特別な関数のフーリエ級数の応用例 Invited

    Ade Irma Suriajaya

    数物セミナー名古屋談話会Lite第7回  2013.3 

    　More details

    Event date： 2013.3

    Language：Japanese   Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：名古屋大学   Country：Japan  

▼display all

MISC

▼display all

Professional Memberships

Academic Activities

  • 開催世話人 International contribution

    RIMS Workshop for Women in Zeta Functions and Their Representations  （ Japan ） 2023.3

    　More details

    Type：Competition, symposium, etc. 

    Number of participants：105

  • 実行委員会委員長 International contribution

    Value Distribution of Zeta and L-functions and Related Topics  （ Japan ） 2019.3

    　More details

    Type：Competition, symposium, etc. 

    Number of participants：120

Research Projects

  • リーマンゼータ関数と素数の間隔の分布 International coauthorship

    2024.4 - 2026.3

    2024年度稲盛研究助成 

    　 More details

    Authorship：Principal investigator  Grant type：Donation

    The Riemann Zeta Function and Distribution of Prime Gaps

  • ゼータ関数及びL関数の零点とゴールドバッハ問題の関係 International coauthorship

    Grant number：22K13895  2022.4 - 2027.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Early-Career Scientists

    　 More details

    Authorship：Principal investigator  Grant type：Scientific research funding

    Zeros of zeta functions and L-functions, and their relations to Goldbach's problem

  • リーマンゼータ関数およびその導関数の零点と離散的な値の分布 International coauthorship

    Grant number：18K13400  2018.4 - 2023.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Early-Career Scientists

    　 More details

    Authorship：Principal investigator  Grant type：Scientific research funding

    Zeros and discrete value distribution of the Riemann zeta function and its derivatives

  • ゼータ関数とL関数の導関数の零点

    2017

    理化学研究所　ライフイベントからの復帰支援または、優秀な女性研究者の支援のための資金

    　 More details

    Grant type：On-campus funds, funds, etc.

  • リーマンゼータ関数とディリクレのＬ関数の零点

    2015 - 2016

    Japan Society for the Promotion of Science  Research Fellowships for Young Scientists

    　 More details

    Authorship：Principal investigator  Grant type：Joint research

Educational Activities

  • I am currently mainly teaching exercise classes for undergraduate math students. From 2014 to 2020, I taught mathematics in English at Meiwa High School once per year.
    I taught Multivariable Calculus as a part-time lecturer at Sophia University before entering Kyushu University.
    I was actively involved in education as a teaching assistant and research assistant during graduate studies.
    I also taught several catch-up classes in undergraduate and was a teaching assistant for Calculus and C Programming.
    As a part of Kyushu University SENTAN-Q training program, I also taught at San Jose State University in the spring semester of 2023 (Math 226 - Graduate course in Number Theory), co-teaching with Prof. Jordan Schettler.

Class subject

  • 入門微分積分学Ⅰ,Ⅱ

    2024.10 - 2025.3   Second semester

  • 国際科学特論VIII

    2024.10 - 2024.12   Fall quarter

  • 微分積分学Ⅰ,Ⅱ

    2024.4 - 2025.3   Full year

  • 数論大意

    2024.4 - 2024.9   First semester

  • 数学特論２

    2024.4 - 2024.9   First semester

  • 数学概論III・演習

    2023.10 - 2024.3   Second semester

  • 数学概論Ⅳ・演習

    2023.10 - 2024.3   Second semester

  • 国際科学特論VIII

    2023.10 - 2023.12   Fall quarter

  • 国際科学特論VIII

    2022.10 - 2022.12   Fall quarter

  • 数学概論I・演習

    2022.4 - 2022.9   First semester

  • 解析学II・演習

    2021.10 - 2022.3   Second semester

  • 数学概論Ⅳ・演習

    2021.10 - 2022.3   Second semester

  • 国際科学特論VIII

    2021.10 - 2021.12   Fall quarter

  • 解析学II・演習

    2020.10 - 2021.3   Second semester

  • 数学概論Ⅳ・演習

    2020.10 - 2021.3   Second semester

  • 国際科学特論VIII

    2020.10 - 2020.12   Fall quarter

  • 解析学II・演習

    2019.10 - 2020.3   Second semester

  • 解析学I・演習

    2019.4 - 2019.9   First semester

  • 入門微分積分Ⅱ

    2024.12 - 2025.2   Winter quarter

  • 微分積分学Ⅱ

    2024.10 - 2025.3   Second semester

  • 国際科学特論Ⅷ

    2024.10 - 2024.12   Fall quarter

  • 入門微分積分Ⅰ

    2024.10 - 2024.12   Fall quarter

  • 数理学基礎論究

    2024.4 - 2025.3   Full year

  • 数理学基礎講究Ⅱ

    2024.4 - 2025.3   Full year

  • 微分積分学Ⅰ

    2024.4 - 2024.9   First semester

  • 数学特論２

    2024.4 - 2024.9   First semester

  • 数論大意

    2024.4 - 2024.9   First semester

  • 数理科学特論９

    2024.4 - 2024.9   First semester

  • 数理科学特別講義Ⅸ

    2024.4 - 2024.9   First semester

▼display all

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

  • 2024  理化学研究所（数理創造プログラム）  Classification:Affiliate faculty  Domestic/International Classification:Japan 

  • 2023  大阪大学日本番日本文化教育センター  Classification:Affiliate faculty  Domestic/International Classification:Japan 

  • 2023  理化学研究所（数理創造プログラム）  Classification:Affiliate faculty  Domestic/International Classification:Japan 

  • 2023  奈良女子大学  Classification:Affiliate faculty  Domestic/International Classification:Japan 

    Semester, Day Time or Duration：後期

  • 2022  大阪大学日本番日本文化教育センター  Classification:Affiliate faculty  Domestic/International Classification:Japan 

  • 2022  理化学研究所（数理創造プログラム）  Classification:Affiliate faculty  Domestic/International Classification:Japan 

  • 2022  奈良女子大学  Classification:Affiliate faculty  Domestic/International Classification:Japan 

    Semester, Day Time or Duration：後期

  • 2022  京都大学  Classification:Affiliate faculty  Domestic/International Classification:Japan 

  • 2021  大阪大学日本番日本文化教育センター  Classification:Affiliate faculty  Domestic/International Classification:Japan 

  • 2021  理化学研究所（数理創造プログラム）  Classification:Affiliate faculty  Domestic/International Classification:Japan 

  • 2021  静岡大学  Classification:Intensive course  Domestic/International Classification:Japan 

    Semester, Day Time or Duration：前期

  • 2020  大阪大学日本番日本文化教育センター  Classification:Affiliate faculty  Domestic/International Classification:Japan 

  • 2020  理化学研究所（数理創造プログラム）  Classification:Affiliate faculty  Domestic/International Classification:Japan 

  • 2019  理化学研究所（数理創造プログラム）  Classification:Affiliate faculty  Domestic/International Classification:Japan 

  • 2018  上智大学  Classification:Part-time lecturer  Domestic/International Classification:Japan 

    Semester, Day Time or Duration：後期、火曜日４限

▼display all

Outline of Social Contribution and International Cooperation activities

  • I am actively giving talks and lectures to general audience.

Social Activities

  • 名古屋大学ホームカミングデイ2022 理学同窓会総会「同窓生の近況報告」

    名古屋大学理学部  名古屋大学 東山キャンパス  2022.10

    　More details

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

    Type：Other

  • 名古屋大学ホームカミングデイ2022 理学同窓会総会「同窓生の近況報告」

    名古屋大学理学部  名古屋大学 東山キャンパス  2022.10

    　More details

    Type：Other

    researchmap

  • 理研AIP-数理女子ジョイントセミナー

    理研AIP、数理女子  YouTube配信  2022.1

    　More details

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

    Type：Lecture

    経歴及び研究内容を紹介し、中高生及び保護者向けのパネルディスカッションを行った。

  • 理研AIP-数理女子ジョイントセミナー

    理研AIP、数理女子  YouTube配信  2022.1

    　More details

    Type：Lecture

    経歴及び研究内容を紹介し、中高生及び保護者向けのパネルディスカッションを行った。

    researchmap

  • 九州大学オープンキャンパス、「無限大の先に～ゼータ関数が開く道」について講義

    九州大学  九州大学 伊都キャンパス  2019.8

    　More details

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

    Type：Lecture

    数学用語でもあるが、日常生活でもたまに使われる「無限」という言葉は一体どういう意味でしょうか。「終わりがない」という意味でなんとなく使われていると思うが、実際には、その「終わり」と呼ばれているのがどういったものなのかが気になりませんか。私は数学を始めた頃に、そのことにとても気になり、頭の中に「無限大とは一体何か」「無限という概念により何を導けるのか」「無限大は唯一ではないのが何故か」などなどの疑問ばかりです。その頃は、決して幼い頃ではなく、純粋科学者という職業が存在すると知らない環境で育ったため、私は二十歳になってからやっと純粋数学に出会いました。無限大の魅力に引き付けられて学んだ先にゼータ関数に出会いました。私は皆さんとゼータ関数に出会った喜びを分かち合いたく、無限大の不思議を見せてくれるゼータ関数を紹介したいと思います。皆さん、無限大の謎を一緒に解いてみませんか。

  • 九州大学オープンキャンパス、「無限大の先に～ゼータ関数が開く道」について講義

    九州大学  九州大学 伊都キャンパス  2019.8

    　More details

    Type：Visiting lecture

    数学用語でもあるが、日常生活でもたまに使われる「無限」という言葉は一体どういう意味でしょうか。「終わりがない」という意味でなんとなく使われていると思うが、実際には、その「終わり」と呼ばれているのがどういったものなのかが気になりませんか。私は数学を始めた頃に、そのことにとても気になり、頭の中に「無限大とは一体何か」「無限という概念により何を導けるのか」「無限大は唯一ではないのが何故か」などなどの疑問ばかりです。その頃は、決して幼い頃ではなく、純粋科学者という職業が存在すると知らない環境で育ったため、私は二十歳になってからやっと純粋数学に出会いました。無限大の魅力に引き付けられて学んだ先にゼータ関数に出会いました。私は皆さんとゼータ関数に出会った喜びを分かち合いたく、無限大の不思議を見せてくれるゼータ関数を紹介したいと思います。皆さん、無限大の謎を一緒に解いてみませんか。

    researchmap

  • 理研DAY：研究者と話そう 「数のふしぎ」

    理化学研究所  科学技術館4階シンラドーム  2019.3

    　More details

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

    Type：Lecture

  • 理研DAY：研究者と話そう 「数のふしぎ」

    理化学研究所  科学技術館4階シンラドーム  2019.3

    　More details

    Type：Visiting lecture

    researchmap

  • 第2回彩の国女性研究者ネットワークシンポジウムにて講演「ゼータ関数の零点と素数と社会？」

    埼玉大学  埼玉大学  2018.12

    　More details

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

    Type：Lecture

    他の分野の方々に限らず一般の方々向けに研究内容を簡約に紹介した。

  • 第2回彩の国女性研究者ネットワークシンポジウムにて講演「ゼータ関数の零点と素数と社会？」

    埼玉大学  埼玉大学  2018.12

    　More details

    Type：Lecture

    他の分野の方々に限らず一般の方々向けに研究内容を簡約に紹介した。

    researchmap

  • 理化学研究所神戸キャンパス一般公開iTHEMSミニ講演会にて講演「無限大は有限にできるか？」

    理化学研究所  理化学研究所 神戸キャンパス  2018.11

    　More details

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

    Type：Lecture

  • Nerd Nite Tokyo 27 にて講演"When Infinity Becomes Finite"

    Nerd Nite Tokyo  Nagatacho GRID (東京都千代田区平河町2-5-3)  2018.11

    　More details

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

    Type：Lecture

  • Nerd Nite Tokyo 27 にて講演"When Infinity Becomes Finite"

    Nerd Nite Tokyo  Nagatacho GRID (東京都千代田区平河町2-5-3)  2018.11

    　More details

    Type：Lecture

    researchmap

  • 理化学研究所神戸キャンパス一般公開iTHEMSミニ講演会にて講演「無限大は有限にできるか？」

    理化学研究所  理化学研究所 神戸キャンパス  2018.11

    　More details

    Type：Lecture

    researchmap

  • RIKEN iTHEMS のアウトリーチについての研究会 2017に参加し、「ゼータ関数論とは」について講演

    東京大学、理化学研究所数理創造プログラム  東京大学 玉原国際セミナーハウス  2017.6

    　More details

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

    Type：Seminar, workshop

  • RIKEN iTHEMS のアウトリーチについての研究会 2017に参加し、「ゼータ関数論とは」について講演

    東京大学、理化学研究所数理創造プログラム  東京大学 玉原国際セミナーハウス  2017.6

    　More details

    Type：Seminar, workshop

    researchmap

▼display all

Media Coverage

  • 「輝数遇数――数学教室訪問」インタービュー記事 Newspaper, magazine

    現代数学  2020.4

    　More details

    「輝数遇数――数学教室訪問」インタービュー記事

  • 日本科学未来館にて国際会議「World Congress of Science and Factual Producers」の「Tech Salon」セッションに５名中の１名の科学者として招待され、 参加された映画制作の方々に自分の分野を紹介し、社会に期待してもらえる分野の発展可能性について語りました。

    WCSFP 2019  2019.12

    　More details

    日本科学未来館にて国際会議「World Congress of Science and Factual Producers」の「Tech Salon」セッションに５名中の１名の科学者として招待され、
    参加された映画制作の方々に自分の分野を紹介し、社会に期待してもらえる分野の発展可能性について語りました。

  • 研究紹介 Newspaper, magazine

    RIKEN People  2019.3

    　More details

    研究紹介

  • 数学分野に進んだ経験話 Newspaper, magazine

    数理女子  2018.2

    　More details

    数学分野に進んだ経験話

Acceptance of Foreign Researchers, etc.

  • University of Toronto（トロント大学）

    Acceptance period： 2025.11 - 2026.5   （Period）：1 month or more

    Nationality：Canada

    Business entity：Other

Travel Abroad

  • 2025.8 - 2025.9

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

  • 2025.6

    Staying countory name 1：France   Staying institution name 1：Centre International de Rencontres Mathematiques, Luminy

  • 2025.3 - 2025.4

    Staying countory name 1：United States   Staying institution name 1：San Jose State University

  • 2024.9

    Staying countory name 1：France   Staying institution name 1：Université de Lille

  • 2024.8 - 2024.9

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

  • 2024.3 - 2024.4

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

  • 2024.3

    Staying countory name 1：France   Staying institution name 1：Université de Lille

  • 2023.9

    Staying countory name 1：France   Staying institution name 1：Université Paris Cité

  • 2023.8 - 2023.9

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

  • 2023.8

    Staying countory name 1：Germany   Staying institution name 1：University of Würzburg

  • 2023.8

    Staying countory name 1：France   Staying institution name 1：Centre International de Rencontres Mathematiques, Luminy

  • 2023.3 - 2023.6

    Staying countory name 1：United States   Staying institution name 1：American Institute of Mathematics

    Staying institution name 2：San Jose State University

  • 2023.1 - 2023.5

    Staying countory name 1：United States   Staying institution name 1：San Jose State University

  • 2022.12 - 2023.2

    Staying countory name 1：United States   Staying institution name 1：American Institute of Mathematics

    Staying institution name 2：San Jose State University

  • 2022.11

    Staying countory name 1：Germany   Staying institution name 1：Mathematisches Forschungsinstitut Oberwolfach

  • 2022.11

    Staying countory name 1：Germany   Staying institution name 1：University of Würzburg

  • 2022.8 - 2022.10

    Staying countory name 1：United States   Staying institution name 1：American Institute of Mathematics

    Staying institution name 2：San Jose State University

  • 2019.9

    Staying countory name 1：China   Staying institution name 1：China University of Mining and Technology, Beijing

  • 2019.9

    Staying countory name 1：Thailand   Staying institution name 1：Kasetsart University

  • 2019.8

    Staying countory name 1：Germany   Staying institution name 1：University of Würzburg

  • 2019.4

    Staying countory name 1：Germany   Staying institution name 1：University of Würzburg

  • 2019.2

    Staying countory name 1：India   Staying institution name 1：IMSc Chennai

  • 2018.9

    Staying countory name 1：Australia   Staying institution name 1：UNSW Sydney

  • 2018.9

    Staying countory name 1：Australia   Staying institution name 1：UNSW Canberra

  • 2018.7

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

  • 2018.5 - 2018.6

    Staying countory name 1：Germany   Staying institution name 1：University of Würzburg

  • 2018.5

    Staying countory name 1：China   Staying institution name 1：Shandong University Weihai Campus

  • 2018.4

    Staying countory name 1：Germany   Staying institution name 1：University of Würzburg

  • 2018.1

    Staying countory name 1：United States   Staying institution name 1：MSRI

  • 2017.9 - 2017.10

    Staying countory name 1：Germany   Staying institution name 1：University of Würzburg

  • 2017.7

    Staying countory name 1：Germany   Staying institution name 1：University of Würzburg

  • 2017.5

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

  • 2017.5

    Staying countory name 1：United States   Staying institution name 1：MSRI

  • 2017.4

    Staying countory name 1：United States   Staying institution name 1：San Jose State University

  • 2017.2 - 2017.3

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

  • 2017.1 - 2017.2

    Staying countory name 1：United States   Staying institution name 1：MSRI

  • 2016.10 - 2016.12

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

  • 2016.8 - 2016.9

    Staying countory name 1：Germany   Staying institution name 1：University of Würzburg

  • 2016.6

    Staying countory name 1：Taiwan, Province of China   Staying institution name 1：Academia Sinica

  • 2015.6 - 2015.7

    Staying countory name 1：Germany   Staying institution name 1：University of Würzburg

▼display all