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Strategic research to construct motivic units using new symmetry

Research Project

Project/Area Number 18H05233
Research Category

Grant-in-Aid for Scientific Research (S)

Allocation TypeSingle-year Grants
Review Section Broad Section B
Research InstitutionKeio University

Principal Investigator

Bannai Kenichi  慶應義塾大学, 理工学部(矢上), 教授 (90343201)

Co-Investigator(Kenkyū-buntansha) 志甫 淳  東京大学, 大学院数理科学研究科, 教授 (30292204)
寺杣 友秀  法政大学, 理工学部, 教授 (50192654)
勝良 健史  慶應義塾大学, 理工学部(矢上), 教授 (50513298)
小林 真一  九州大学, 数理学研究院, 教授 (80362226)
安田 正大  北海道大学, 理学研究院, 教授 (90346065)
山本 修司  慶應義塾大学, 理工学研究科(矢上), 准教授 (20635370)
Project Period (FY) 2018-06-11 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥119,470,000 (Direct Cost: ¥91,900,000、Indirect Cost: ¥27,570,000)
Fiscal Year 2022: ¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Fiscal Year 2021: ¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Fiscal Year 2020: ¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Fiscal Year 2019: ¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Fiscal Year 2018: ¥23,270,000 (Direct Cost: ¥17,900,000、Indirect Cost: ¥5,370,000)
Keywords数論幾何 / Hecke L関数 / 新谷生成類 / ポリログ / モチーフ / Hodge実現 / p進実現 / プレクティック構造 / L関数 / 総実代数体 / 同変性 / 整数論 / 代数トーラス / L関数の特殊値 / 数論幾何学
Outline of Final Research Achievements

Our aim was to prospect the construction of motivic units applicable to the proof of conjectures in arithmetic geometry via a motivic object called the polylogarithm. As a concrete objective, we studied the polyogarithm on an algebraic torus associated to a totally real field with equivariant action of the unit group. We discovered the Shintani generating class which universally generates the special balues of the Hecke L-functions of the totally real field. Using a conjectural structure called a plectic structure, we formulate a precise conjecture concerning the equivariant polylogarithm and its relation to the Beilinson conjecture for the Hecke L-function of totally real fields.

Academic Significance and Societal Importance of the Research Achievements

本研究は、数論幾何と呼ばれる純粋数学分野に関する研究であり、代数的数と呼ばれる方程式の解で与えられる 数について、非常に根本的な成果を与えている。古典的なRiemannゼータ関数やDirichlet L関数の一般化とし て、総実代数体に付随するHecke L関数という関数が存在する。本研究では、この総実代数体のHecke L関数を捉 える、良い幾何学的対象を見つけることに成功した。Dirichlet L関数の場合は1次元の幾何を扱っていたが、総 実代数体の場合は高次元となるので、問題が難しくなっていた。本研究では、高次元の場合、同変性を用いるこ とが肝であることを実証した。

Assessment Rating
Ex-post Assessment Comments (Rating)

A+: In light of the aim of introducing the research area into the research categories, more research outcomes have been produced than expected.

Assessment Rating
Interim Assessment Comments (Rating)

A+: In light of the aim of introducing the research area into the research categories, more progress has been made in research than expected.

Report

(11 results)
  • 2024 Ex-post Assessment (Comments) ( PDF )
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Abstract (Interim Assessment) ( PDF )   Annual Research Report   Interim Assessment (Comments) ( PDF )
  • 2019 Annual Research Report
  • 2018 Abstract ( PDF )   Comments on the Screening Results ( PDF )   Annual Research Report
  • Research Products

    (38 results)

All 2023 2022 2021 2020 2019 2018

All Journal Article (19 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 19 results,  Open Access: 5 results) Presentation (17 results) (of which Int'l Joint Research: 7 results,  Invited: 14 results) Funded Workshop (2 results)

  • [Journal Article] Canonical equivariant cohomology classes generating zeta values of totally real fields2023

    • Author(s)
      Kenichi Bannai, Kei Hagihara, Kazuki Yamada, Shuji Yamamoto
    • Journal Title

      Transactions of the American Mathematical Society, Series B

      Volume: 10 Issue: 19 Pages: 613-635

    • DOI

      10.1090/btran/144

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] On the refined Kaneko?Zagier conjecture for general integer indices2023

    • Author(s)
      Ono Masataka、Yamamoto Shuji
    • Journal Title

      Mathematische Zeitschrift

      Volume: 305 Issue: 1 Pages: 1-13

    • DOI

      10.1007/s00209-023-03318-2

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sum formulas for Schur multiple zeta values2023

    • Author(s)
      Henrik Bachmann, Shin-ya Kadota, Yuta Suzuki, Shuji Yamamoto, Yoshinori Yamasaki
    • Journal Title

      Journal of Combinatorial Theory, Series A

      Volume: 200 Pages: 105781-105781

    • DOI

      10.1016/j.jcta.2023.105781

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Duality of One-variable Multiple Polylogarithms and Their q-analogues2023

    • Author(s)
      YAMAMOTO Shuji
    • Journal Title

      Tokyo Journal of Mathematics

      Volume: 46 Issue: 2 Pages: 301-311

    • DOI

      10.3836/tjm/1502179378

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quadrature formulas for Bessel polynomials2023

    • Author(s)
      Matsumura Hideki
    • Journal Title

      Indagationes Mathematicae

      Volume: 34 Issue: 3 Pages: 622-636

    • DOI

      10.1016/j.indag.2023.01.001

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Asymptotic behavior of class groups and cyclotomic Iwasawa theory of elliptic curves2023

    • Author(s)
      Toshiro Hiranouchi, Tatsuya Ohshita
    • Journal Title

      Journal de theorie des nombres de Bordeaux

      Volume: 35 Issue: 2 Pages: 591-657

    • DOI

      10.5802/jtnb.1258

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] p-adic polylogarithms and p-adic Hecke L-functions for totally real fields2022

    • Author(s)
      Kenichi Bannai, Kei Hagihara, Kazuki Yamada, Shuji Yamamoto
    • Journal Title

      Journal fur die reine und angewandte Mathematik (Crelles Journal)

      Volume: 2022 Issue: 791 Pages: 53-87

    • DOI

      10.1515/crelle-2022-0040

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] MULTIPLE ZETA FUNCTIONS OF KANEKO-TSUMURA TYPE AND THEIR VALUES AT POSITIVE INTEGERS2022

    • Author(s)
      YAMAMOTO Shuji
    • Journal Title

      Kyushu Journal of Mathematics

      Volume: 76 Issue: 2 Pages: 497-509

    • DOI

      10.2206/kyushujm.76.497

    • ISSN
      1340-6116, 1883-2032
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Counterexamples to the local-global principle for non-singular plane curves and a cubic analogue of Ankeny-Artin-Chowla-Mordell conjecture2022

    • Author(s)
      Hirakawa Yoshinosuke、Shimizu Yosuke
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 150 Pages: 1821-1835

    • DOI

      10.1090/proc/15306

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Infinitely many hyperelliptic curves with exactly two rational points2021

    • Author(s)
      Hirakawa Yoshinosuke、Matsumura Hideki
    • Journal Title

      Rocky Mountain Journal of Mathematics

      Volume: 51 Issue: 3 Pages: 883-889

    • DOI

      10.1216/rmj.2021.51.883

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] How to calculate the proportion of everywhere locally soluble diagonal hypersurfaces2021

    • Author(s)
      Hirakawa Yoshinosuke、Kanamura Yoshinori
    • Journal Title

      International Journal of Number Theory

      Volume: 17 Issue: 10 Pages: 2361-2377

    • DOI

      10.1142/s1793042121500925

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A generalized regularization theorem and Kawashima's relation for multiple zeta values2021

    • Author(s)
      Masanobu Kaneko, Ce Xu, Shuji Yamamoto
    • Journal Title

      Journal of Algebra

      Volume: 580 Pages: 247-263

    • DOI

      10.1016/j.jalgebra.2021.04.005

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Truncated t-adic symmetric multiple zeta values and double shuffle relations2021

    • Author(s)
      Masataka Ono, Shin-ichiro Seki, Shuji Yamamoto
    • Journal Title

      Research in Number Theory

      Volume: 7 Issue: 1

    • DOI

      10.1007/s40993-021-00241-5

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multivariable Hoffman-Ihara operators and the operad of formal power series2020

    • Author(s)
      Shuji Yamamoto
    • Journal Title

      Journal of Algebra

      Volume: 556 Pages: 634-648

    • DOI

      10.1016/j.jalgebra.2020.04.006

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Counterexamples to the local-global principle associated with Swinnerton-Dyer's cubic form2020

    • Author(s)
      Hirakawa Yoshinosuke
    • Journal Title

      Rocky Mountain Journal of Mathematics

      Volume: 50 Issue: 6

    • DOI

      10.1216/rmj.2020.50.2097

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Hodge realization of the polylogarithm on the product of multiplicative groups2020

    • Author(s)
      Bannai Kenichi、Hagihara Kei、Yamada Kazuki、Yamamoto Shuji
    • Journal Title

      Mathematische Zeitschrift

      Volume: 296 Issue: 3-4 Pages: 1787-1817

    • DOI

      10.1007/s00209-020-02483-y

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Category of mixed plectic Hodge structures2020

    • Author(s)
      Bannai Kenichi、Hagihara Kei、Kobayashi Shinichi、Yamada Kazuki、Yamamoto Shuji、Yasuda Seidai
    • Journal Title

      Asian Journal of Mathematics

      Volume: 24 Issue: 1 Pages: 31-76

    • DOI

      10.4310/ajm.2020.v24.n1.a2

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On infiniteness of integral overconvergent de Rham-Witt cohomology modulo torsion2020

    • Author(s)
      Veronika Ertl and Atsushi Shiho
    • Journal Title

      Tohoku Mathematical Journal

      Volume: 72 Issue: 3 Pages: 395-410

    • DOI

      10.2748/tmj/1601085622

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A unique pair of triangles2019

    • Author(s)
      Hirakawa Yoshinosuke、Matsumura Hideki
    • Journal Title

      Journal of Number Theory

      Volume: 194 Pages: 297-302

    • DOI

      10.1016/j.jnt.2018.07.007

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] On the Equivariant Polylogarithm Class for the Algebraic Torus associated with a Totally Real Field,2022

    • Author(s)
      Kenichi Bannai
    • Organizer
      RIMS Workshop: Algebraic Number Theory and Related Topics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 総実代数体のゼータ関数の値と新谷生成類2022

    • Author(s)
      山本修司
    • Organizer
      第16回多重ゼータ研究集会&第58回関西多重ゼータ研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] ゼータ値の生成関数とコホモロジー解釈2022

    • Author(s)
      山本修司
    • Organizer
      第3回 数学と諸分野の連携に向けた若手数学者交流会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] On the equivariant polylogarithm for the algebraic torus associated to totally real fields (joint with Hohto Bekki, Kei Hagihara, Tatsuya Oshita, Kazuki Yamada, and Shuji Yamamoto)2021

    • Author(s)
      Kenichi Bannai
    • Organizer
      Eisenstein Series and Equivariant Cohomology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Shintani Generating Class and the Equivariant Polylogarithm for Totally Real Fields (joint with Hohto Bekki, Kei Hagihara, Tatsuya Oshita, Kazuki Yamada, and Shuji Yamamoto)2021

    • Author(s)
      Kenichi Bannai
    • Organizer
      Algebra Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On the Equivariant Polylogarithm Class for the Algebraic Torus associated with a Totally Real Field2021

    • Author(s)
      Kenichi Bannai
    • Organizer
      RIMS Workshop: Algebraic Number Theory and Related Topics, RIMS
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 整p進コホモロジー理論について,2021

    • Author(s)
      志甫淳
    • Organizer
      京都大学理学部数学教室談話会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Shintani generating class and the p -adic polylogarithm for totally real fields (joint work with Kei Hagihara, Kazuki Yamada, and Shuji Yamamoto),2020

    • Author(s)
      Kenichi Bannai
    • Organizer
      Seminaire de Geometrie Arithmetique Paris-Pekin-Tokyo
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Shintani Revisited2019

    • Author(s)
      Kenichi Bannai
    • Organizer
      Boston University/Keio University Workshop 2019 in Number Theory
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On the p-adic polylogarithm function for totally real fields2019

    • Author(s)
      Kenichi Bannai
    • Organizer
      p-adic Cohomology and Arithmetic Geometry 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On the Shintani Generating Class of Algebraic Tori Associated to Totally Real Fields2019

    • Author(s)
      Kenichi Bannai
    • Organizer
      Algebraic Number Theory and Related Topics, RIMS
    • Related Report
      2019 Annual Research Report
  • [Presentation] The polylogarithm associated to algebraic tori associated to totally real fields2019

    • Author(s)
      Kenichi Bannai
    • Organizer
      Colloquium, Osaka University
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] The p -adic polylogarithm and p-adic L-function for totally real fields2019

    • Author(s)
      Kenichi Bannai
    • Organizer
      Seminar on Number Theory and Automorphic Forms, Osaka University
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Comparison between rigid syntomic and crystalline syntomic cohomology for strictly semistable log schemes2018

    • Author(s)
      Kazuki Yamada
    • Organizer
      第17回仙台広島整数論集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 混合プレクティックホッジ構造について2018

    • Author(s)
      坂内健一, 萩原啓, 小林真一, 山田一紀, 山本修司, 安田正大
    • Organizer
      ワークショップ「ホッジ理論と代数幾何学」
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 代数トーラスのポリログのde Rham実現2018

    • Author(s)
      坂内健一, 萩原啓, 山田一紀, 山本修司
    • Organizer
      第12回福岡数論研究集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] On the de Rham realization of the polylogarithm for certain algebraic Tori2018

    • Author(s)
      Kenichi Bannai, Kei Hagihara, Kazuki Yamada and Shuji Yamamoto
    • Organizer
      Keio-Yonsei Number Theory Workshop
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Funded Workshop] BOSTON UNIVERSITY/KEIO UNIVERSITY WORKSHOP 2019 Number Theory2019

    • Related Report
      2019 Annual Research Report
  • [Funded Workshop] Conference on distribution of values of zeta functions and L-functions2019

    • Related Report
      2018 Annual Research Report

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Published: 2018-06-12   Modified: 2025-02-04  

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