Researchers

TASAKA Koji

TASAKA Koji
Associate Professor
Faculty Department of Science
Researchmap https://researchmap.jp/kojitasaka

Education and Career

Education

  • 2005/04 - 2009/03 , Kinki University, Department of Mathematics,
  • 2009/04 - 2011/03 , Kyushu University, Graduate School of Mathematics,
  • 2011/04 - 2014/03 , Kyushu University, Graduate School of Mathematics,

Academic & Professional Experience

  • Apr. 2020 - Mar. 2024 , Aichi Prefectural University School of Information Science and Technology 准教授
  • Apr. 2018 - Mar. 2020 , Aichi Prefectural University School of Information Science and Technology Lecturer
  • Apr. 2016 - Mar. 2018 , Aichi Prefectural University School of Information Science and Technology Assictant professor
  • Apr. 2017 - Feb. 2018 , Max Planck Institute for Mathematics Guest Scientist
  • Apr. 2015 - Mar. 2016 , Nagoya University Graduate School of Mathematics Research Fellow of the Japan Society for the Promotion of Science (JSPS Research Fellow)
  • Jul. 2014 - Mar. 2015 , POSTECH Pohang Mathematical Institute 学術研究員
  • Apr. 2014 - May. 2014 , Kyushu University 大学院数理学研究院 博士研究員
  • Apr. 2012 - Mar. 2014 , Kyushu University Graduate School of Mathematics Research Fellow of the Japan Society for the Promotion of Science (JSPS Research Fellow)

Research Activities

Research Areas

  • Natural sciences, Algebra

Research Interests

Spherical design, Modular Forms, Multiple zeta value, Number Theory

Published Papers

  1. Spherical designs and modular forms of the $$D_4$$ lattice
    Masatake Hirao; Hiroshi Nozaki; Koji Tasaka
    Research in Number Theory  9  (4)  1, Nov. 2023  , Refereed
  2. Supercongruences of multiple harmonic $q$-sums and generalized finite/symmetric multiple zeta values
    Yoshihiro Takeyama; Koji Tasaka
    Kyushu Journal of Mathematics  77  (1)  , 75-120, Feb. 2023  , Refereed
  3. On a unified double zeta function of Mordell–Tornheim type*
    Shin-ya Kadota; Takuya Okamoto; Masataka Ono; Koji Tasaka
    Lithuanian Mathematical Journal  62  (2)  , 207-217, Mar. 2022  , Refereed

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Conference Activities & Talks

  1. D4格子に関する球面デザインおよびモジュラー形式 , 田坂浩二 , 阪大整数論保型形式セミナー , 9, Jun. 2023
  2. 球面デザインとモジュラー形式 II , 田坂浩二 , 合同ゼミ, 愛知県立大学 , 25, Apr. 2023
  3. Around double shuffle relations , 田坂浩二 , 第5回青葉山ゼータ研究集会, 東北大学 , 20, Mar. 2023

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MISC

  1. The harmonic strength of shells of lattices and weighted theta series , Koji Tasaka , RIMS Kokyuroku "Analytic and arithmetic aspects of automorphic representations" , 2264 , 17 , 29 , Aug. 2023
  2. 2重 Eisenstein 級数とその周辺 (解析的整数論 : 数論的関数の多重性に関連して) , 田坂 浩二 , 数理解析研究所講究録 , 1806 , 200 , 209 , Sep. 2012

Awards & Honors

  1. Feb. 2014, 日本数学会九州支部, 九州若手数学賞

Research Grants & Projects

  1. Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, The dawn of modular phenomena for higher level multiple zeta values with a new development on multiple Eisenstein series , Aichi Prefectural University
  2. 日本学術振興会, 科学研究費助成事業, 種々の多重ゼータ値の統一的および相互発展的な研究 , 愛知県立大学
  3. 日本学術振興会, 科学研究費助成事業, モチヴィックガロア群と多重ゼータ値から広がる数学ー整数論からの解放ー , 名古屋大学

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