Personnel Information

写真a

HASEGAWA Takehiro


Title

Professor

Field

Field of Education

Date of Birth

1977

Mail Address

E-mail address

Related SDGs


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Research Interests 【 display / non-display 】

  • Towers of algebraic curves over finite fields

  • Towers of algebraic curves over finite fields

  • Ihara zeta functions

  • Ihara zeta functions

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Graduating School 【 display / non-display 】

  • Waseda University， Faculty of Education， Department of Mathematics

    University， 2000.03， Graduated， Japan

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Graduate School 【 display / non-display 】

  • Waseda University， Graduate School, Division of Science and Engineering， Department of Mathematics

    Doctor's Course， 2005.03， Accomplished credits for doctoral program， Japan

  • Waseda University， Graduate School, Division of Science and Engineering， Department of Mathematics

    Master's Course， 2002.03， Completed， Japan

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Degree 【 display / non-display 】

  • Doctor (Science)， Algebra， Waseda University， Coursework， 2007.03

  • Master (Science)， Algebra， Waseda University， Coursework， 2002.03

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Campus Career 【 display / non-display 】

  • Shiga University Faculty of Education Shiga University，Professor，Professor， 2022.04 - Now

  • Shiga University Faculty of Education Shiga University，Associate Professor，Associate Professor， 2015.04 - 2022.03

  • Shiga University Faculty of Education Shiga University，Instructor，Full-time Lecturer， 2013.04 - 2015.03

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Association Memberships 【 display / non-display 】

  • Japan Society of Mathematical Education， 2010 - Now

  • Japan Society of Mathematical Education， 2010 - Now

  • The Mathematical Society of Japan， 2002 - Now

  • The Mathematical Society of Japan， 2002 - Now

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Research Areas 【 display / non-display 】

  • Algebraic curves, Drinfeld modules

  • Algebraic curves, Drinfeld modules

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Research Career 【 display / non-display 】

  • Ihara zeta functions， 2012 - Now

    Natural Science / Algebra，Collaboration in Japan，Grant-in-Aid for Scientific Research

  • Towers of algebraic curves over finite fields， 2000 - Now

    Supersingular Drinfeld modules，Natural Science / Algebra，Individual，Grant-in-Aid for Scientific Research

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Papers 【 display / non-display 】

  • Lattice sums of I-Bessel functions, theta functions, linear codes and heat equations， Research in the Mathematical Sciences， vol.11 (4) ， 2024.10, Takehiro Hasegawa, Hayato Saigo, Seiken Saito, Shingo Sugiyama

    DOI:10.1007/s40687-024-00472-9, Research paper (scientific journal)， Multiple Authorship， Natural Science / Algebra， Natural Science / Applied mathematics and statistics

  • Explicit formulas for the exponential and logarithm of the Carlitz–Tate twist, and applications， Journal de théorie des nombres de Bordeaux， vol.36 (1) (p.251 - 291) ， 2024.07, Takehiro Hasegawa

    DOI:10.5802/jtnb.1278, Research paper (scientific journal)， Single Author， Natural Science / Algebra

    Authorship：Lead author,　Last author,　Corresponding author  

  • The limit theorem with respect to the matrices on non-backtracking paths of a graph， Annals of Combinatorics， vol.27 (2) (p.249 - 268) ， 2023.06, Takehiro Hasegawa, Takashi Komatsu, Norio Konno, Hayato Saigo, Seiken Saito, Iwao Sato, Shingo Sugiyama

    DOI:10.1007/s00026-022-00617-z, Research paper (scientific journal)， Multiple Authorship

  • Logarithmic-type and exponential-type hypergeometric functions for function fields， Journal of Number Theory， vol.233 (p.87 - 111) ， 2022.04, Takehiro Hasegawa

    DOI:10.1016/j.jnt.2021.05.016, Research paper (scientific journal)， Single Author

    Authorship：Lead author,　Last author,　Corresponding author  

  • A note on the moments of the Kesten distribution， Discrete Mathematics， vol.344 (10) ， 2021.10, Takehiro Hasegawa, Seiken Saito

    DOI:10.1016/j.disc.2021.112524, Research paper (scientific journal)， Multiple Authorship

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Research Grants & Projects 【 display / non-display 】

  • ，グラフ上の量子カオスに関するBerry予想の考察とその応用，Grant-in-Aid for Scientific Research(C)Grant-in-Aid for Scientific Research(C)，2025.04 - 2028.03，Japan Society for the Promotion of Science

  • ，Grant-in-Aid for Scientific Research(C)Grant-in-Aid for Scientific Research(C)，2025

  • ，Grant-in-Aid for Scientific Research(C)Grant-in-Aid for Scientific Research(C)，2025

  • ，Grant-in-Aid for Scientific Research(C)Grant-in-Aid for Scientific Research(C)，2022.04 - 2025.03

  • ，Grant-in-Aid for Scientific Research(C)Grant-in-Aid for Scientific Research(C)，2022.04 - 2025.03

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Preferred joint research theme 【 display / non-display 】

  • 【キーワード】代数曲線／伊原ゼータ関数, Cooperative Research with other research organizations including universities., Cooperative Research

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Charge of on-campus class subject 【 display / non-display 】

  • 算数・数学科教材開発研究「数と形」，2025.10 - 2026.03

  • 代数学講究Ⅱ，2025.10 - 2026.03

  • 基礎代数学Ⅱ，2025.10 - 2026.03

  • 線型代数学演習，2025.10 - 2026.03

  • 代数学演習，2025.10 - 2026.03

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Charge of off-campus class subject 【 display / non-display 】

  • 代数学演習，Shiga University，2025.10 - 2026.03

  • 代数学講究Ⅱ，Shiga University，2025.10 - 2026.03

  • 基礎代数学Ⅱ，Shiga University，2025.10 - 2026.03

  • 教職実践演習（教諭），Shiga University，2025.10 - 2026.03

  • 数学教育の基礎，Shiga University，2025.10 - 2026.03

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