# Research Overview

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PhD advisor: Prof. Kohji Matsumoto (松本耕二 教授)

Research interest: analytic number theory, analytic properties of zeta functions and L-functions, zeros of derivatives of zeta functions and L-functions

Address: Faculty of Mathematics, Kyushu University

744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan

Profile

*** Below each item is written in reverse chronological order ***

Research papers:

1. J. Steuding and A. I. Suriajaya, Mean-Values Associated with Generalized Schemmel's Function, submitted.
2. F. Ge and A. I. Suriajaya, Note on the number of zeros of $\zeta^{(k)}(s)$, submitted.
3. L. G. Fel, T. Komatsu, A. I. Suriajaya, A sum of negative degrees of the gaps values in two-generated numerical semigroups and identities for the Hurwitz zeta function, submitted.
4. J. Lee, A. Sourmelidis, J. Steuding, A. I. Suriajaya, The Values of the Riemann Zeta-Function on Discrete Sets, to appear in ASPM Series, preprint in arXiv:1710.11367 [math.NT].
5. H. Akatsuka and A. I. Suriajaya, Zeros of the first derivative of Dirichlet L-functions, J. Number Theory 184 (2018), 300–329, available online at https://doi.org/10.1016/j.jnt.2017.08.023.
6. A. I. Suriajaya, Two estimates on the distribution of zeros of the first derivative of Dirichlet L-functions under the generalized Riemann hypothesis, J. Théor. Nombres Bordeaux 29 (2017), no. 2, 471–502.
7. J. Lee and A. I. Suriajaya, An ergodic value distribution of certain meromorphic functions, J. Math. Anal. Appl. 445 (2017), 125–138, available online at http://dx.doi.org/10.1016/j.jmaa.2016.07.064.
8. J. Lee, T. Onozuka, and A. I. Suriajaya, Some probabilistic value distributions of the Riemann zeta function and its derivatives, Proc. Japan Acad. Ser. A Math. Sci. 92 (2016), no. 7, 82–83.
9. A. I. Suriajaya, On the zeros of the k-th derivative of the Riemann zeta function under the Riemann hypothesis, Funct. Approx. Comment. Math. 53 (2015), no.1, 69–95.
10. A. I. Suriajaya, On the Zeros of the Second Derivative of the Riemann Zeta Function under the Riemann Hypothesis, arxiv:1309.7160 [math.NT]. (only preprint)

Other papers:

1. A. I. Suriajaya, リーマンゼータ関数の臨界領域内等差数列における値の分布 (Values of the Riemann zeta function on vertical arithmetic progressions in the critical strip), submitted to RIMS Kyokyuroku (for RIMS Workshop 2018 "Analytic Number Theory and Related Topics") (non-refereed proceedings, in Japanese)
2. A. I. Suriajaya, リーマンゼータ関数とディリクレL関数の導関数の零点の分布, RIMS Kyokyuroku 2018.11, no. 2092, 9–14 (for RIMS Workshop 2017 "Analytic Number Theory and Related Areas") (non-refereed proceedings, in Japanese)
3. A. I. Suriajaya, On the zeros of the derivatives of the Riemann zeta function under the Riemann hypothesis, RIMS Kyokyuroku 2016.12, no. 2013, 33–43 (for RIMS Workshop 2014 "Analytic Number Theory － Distribution and Approximation of Arithmetic Objects") (non-refereed proceedings)
4. A. I. Suriajaya, 综述黎曼ζ函数的零点分布, NU Ideas 5 (2016), issue 1 (in Chinese)

Talks

Research visits:

1. University of Würzburg (Würzburg, Germany) // Jun 29 – Jul 1, 2015; Aug 1 – Sep 4, 2016; Jul 9–15, 2017; Sep 9 – Oct 7, 2017; Apr 22–28, 2018; May 20 – Jun 20, 2018; Apr 4–9, 2019
2. MSRI (Berkeley, CA, USA) // Jan 23 – Feb 10, 2017; M 1–5, 2017; Jan 7–24, 2018
3. Nagoya University (Nagoya, Japan) // Aug 14–25, 2017
4. University of Rochester (Rochester, NY, USA) // Oct 21 – Dec 1, 2016; Feb 19 – Mar 19, 2017; May 6–17, 2017; Jul 3–7, 2018
5. San Jose State University (San Jose, CA, USA) // Apr 26–30, 2017
6. Academia Sinica (Taipei, Taiwan) // Jun 11–30, 2016

External research funding:

1. JSPS Grants-in-Aid for Scientific Research (Kakenhi) for young researchers, project number: 18K13400

Organized seminar and conferences:

1. Conference on distribution of values of zeta functions and L-functions, March 21–27, 2019
2. RIKEN iTHES/iTHEMS Number Theory Seminar:
1. March 16, 2019 (Speakers: Prof. Yasuo Ohno [Tohoku University] and Dr. Yuta Suzuki [Nagoya University])
2. February 25, 2019 (Speakers: Prof. Takashi Nakamura [Tokyo University of Science] and Prof. Hidehiko Mishou [Tokyo Denki University])
3. December 6, 2018 (Speaker: Masahiro Mine [Tokyo Institute of Technology])
4. November 22, 2018 (Speakers: Toshiki Matsusaka [Kyushu University] and Dr. Shin-ichiro Seki [Tohoku University])
5. October 23, 2018 (Speakers: Wataru Takeda [Nagoya University] and Kota Saito [Nagoya University])
6. July 24, 2018 (Speakers: Dr. Masataka Ono [Keio University], Dr. Shingo Sugiyama [Nihon University], and Yoshinosuke Hirakawa [Keio University])
7. March 13, 2018 (Speaker: Dr. Soma Purkait [Tokyo University of Science])
8. February 23 and 24, 2018 (Speaker: Prof. Dr. Takao Komatsu [Wuhan University])
9. December 15 and 18, 2017 (Speaker: Prof. Dr. Yoonbok Lee [Incheon National University])
10. November 15 and 17, 2017 (Speaker: Dr. Sumaia Saad Eddin [Nagoya University])
11. August 31, 2017 (Speaker: Thomas Lachmann [TU Graz])
3. RIKEN coffee meeting:
1. February 23, 2018 (Speaker: Dr. Tetsuo Hatsuda)
2. February 16, 2018 (Speaker: Dr. Eren Mehmet Kiral)
3. November 17, 2017 (Speaker: Dr. Sumaia Saad Eddin [Nagoya University])
4. 第８回ゼータ若手研究集会 (The 8th Young Mathematicians Conference on Zeta Functions), February 13–16, 2015
5. Chacha-zemi, November 17, 2011 – January 29, 2015