Ryotaro Harada

I am a Japanese Post doctor currently working at National Center of Theoretical Science in Hsinchu.

PhD Adviser: Prof. Hidekazu Furusho, homepage

Research interest: Function field arithmetic, zeta functions and L-functions

Address: NCTS, Math (Hsinchu) 3rd General Building, 4th floor, National Tsing-Hua University, No.101, Sec.2, Kuang-Fu Road, Hsinchu, Taiwan 300

E-mail address: ryotaro (at) ncts.ntu.edu.tw

Upcoming event: 2020 Annual Meeting of Taiwanese Mathematical Society, Dec. 5-6, Fu jen University, New Taipei.

Japan Europe Number Theory Exchange Seminar, 2020, Oct. 13 ~, Zoom meeting.

Research paper: ・Y.-T. Chen, R. Harada, `On lower bounds of the dimension of multizeta values in positive characteristic', 2020, preprint, Arxiv link

・R. Harada, `Alternating multizeta values in positive characteristic', 2019 to appear in Math. Z, Arxiv link

・R. Harada, `On multi-poly-Bernoulli-Carlitz numbers', 2018 to appear in J. Number Theory, Arxiv link

R. Harada, `On Lara Rodriguez' full conjecture for double zeta values in function fields ', Int. J. Number Theory, 14 (4) 2018 pp. 1081-1092, Arxiv link

・R. Harada, `On Euler's formulae for double zeta values', Kyushu J. Math. 72 (1), 2018 pp. 15-24, Arxiv link

Research survey: ・R. Harada, `標数pの多重ゼータ値入門', to appear in 2020年 多重ゼータ値の諸相 RIMS講究録,

・R. Harada, `On characteristic p alternating multizeta values', to appear in 2020年 多重ゼータ値の諸相 RIMS講究録,

・R. Harada, `KZ方程式とKZ結合子', 第26回整数論サマースクール報告集, (2019), pdf(Japanese)

・R. Harada, `Eulerの二重ゼータ値の公式について', 2016, 第12回数学総合若手研究集会講究録,

北海道大学数学講究録 165, pp.174-175, (2016), pdf (Japanese)

Talk list: ・``九州代数的整数論2020夏 on Zoom (Kyushu Algebraic Number Theory in 2020 Summer on Zoom)''

Aug. 8-11, 2020, Zoom meeting.

・``A positive characteristic analogue of alternating multizeta values''

Japan-Taiwan joint workshop on multiple zeta values Feb. 8-11, 2020, Okinawaken Seinenkaikan (沖縄県青年会館), Naha.

・``Carlitz-Thakur multizeta values (Carlitz -Thakur多重ゼータ値)

course of lectures for students and non-expert `Introduction to number theory in characteristic p', Jan. 17th, 2020, Nagoya University, Nagoya.

・``Carlitz zeta values and Carlitz modules (Carlitz ゼータ値とCarlitz 加群)

course of lectures for students and non-expert `Introduction to number theory in characteristic p', Jan. 10th, 2020, Nagoya University, Nagoya.

・``Functions in characteristic p (標数pにおける関数)

course of lectures for students and non-expert `Introduction to number theory in characteristic p', Dec. 20th, 2019, Nagoya University, Nagoya.

・``Numbers in characteristic p (標数pにおける数)

course of lectures for students and non-expert `Introduction to number theory in characteristic p', Dec. 13th, 2019, Nagoya University, Nagoya.

・``On function field alternating multizeta values''

TMS Annual Meeting Dec. 7-8, 2019, National Chung Hsing University, Taiwan.

・``Alternating multizeta values in positive characteristic ''

Various Aspects of Multiple Zeta Values (多重ゼータ値の諸相), Nov. 18-22, 2019 RIMS, Kyoto University, Kyoto.

・``Alternating Multizeta Values in Characteristic p''

NCTS Seminar on Number Theory, Oct. 16, 2019 NCTS, Hsinchu.

・``On Euler's formulae for depth 2 multiple zeta values'',

NCTS Seminar on Number Theory, March 13, 2019 NCTS, Hsinchu.

・``KZ方程式とKZ結合子''

The 26th Number Theory Summer school (第26回整数論サマースクール), Sept. 10-14, 2018 Sea Park & Spa Irago, Nagoya.

・`` 正標数の多重ポリベルヌーイ数について''

Seminar on analytic number theory (解析数論セミナー), Aug. 31, 2018 Nagoya University, Nagoya.

・``On multi-poly-Bernoulli numbers in characteristic p''

Taiwan-Japan Joint Workshop on Multiple Zeta Values, Aug. 2-5, 2018 National Taiwan University, Taipei.

・ `` On generalizations of Bernoulli-Carlitz numbers ''

The 17th Sendai-Hiroshima Number Theory Conference, July 10-13, 2018 Tohoku University, Sendai.

・``多重ポリベルヌーイ数の関数体類似について''

Seminar on algebra (代数学セミナー), June 18, 2018 Tsukuba university, Tsukuba.

・``On multi-poly-Bernoulli-Carlitz numbers''.

The 11th multiple zeta value workshop & The 39th Kansai multiple zeta seminar (Joint workshop) (第11回多重ゼータ研究集会 & 第39回関西多重ゼータ研究会 (共同開催) ), Feb. 16-18, 2018 Kindai University, Osaka.

・``Lara Rodriguez' full conjecture for double zeta values in characteristic p ''.

Seminar on analytic number theory (解析数論セミナー), Oct. 13, 2017 Nagoya University, Nagoya.

・``Lara Rodriguez' full conjecture for double zeta values in F_q[t]''.

NCTS One Day Workshop on Multiple Zeta Values in Positive Characteristic, Sept. 18 2017 NTHU, Hsinchu.

・``On Euler's methods for double zeta values''.

School of Mathematics Seminars and Lectures, June 21 2017 TIFR, Mumbai.

・``A full conjecture of J. A. Lara Rodriguez for double zeta values in characteristic p''

Mathematics Seminar July 5 2017, IISER, Pune.

・``On Lara Rodriguez' full conjecture for double zeta values in function fields''

The 10th Young Mathematicians Conference on Zeta Functions (第10回ゼータ若手研究集会) Feb. 20-23 2017, Nagoya University, Nagoya​.

・``Euler's relations for double zeta values''

Aichi Number theory seminar (愛知数論セミナー) May 21 2016, Nagoya Institute of Technology, Nagoya.

・``Euler’s methods on double zeta values''

Workshop on Polylogarithms, MZVs and Mahler measures March 28-29 2016, Tohoku University, Sendai.

・``Euler の二重ゼータ値について''

The 12th Mathematics Conference for Young Researchers (第12回数学総合若手研究集会) Feb 29- March 3 2016, Hokkaido University, Sapporo.

・``Euler’s formulae among double zeta values and double shuffle relation''

The 9th Young Mathematicians Conference on Zeta Functions (第9回ゼータ若手研究集会) Feb 15-18 2016, Okinawa Sen-in Kaikan Hotel, Naha.