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Algebraic aspects of elliptic multiple zeta values

Research Project

Project/Area Number 17F17020
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Algebra
Research InstitutionKyushu University

Principal Investigator

金子 昌信  九州大学, 数理学研究院, 教授 (70202017)

Co-Investigator(Kenkyū-buntansha) MATTHES NILS  九州大学, 数理(科)学研究科(研究院), 外国人特別研究員
Project Period (FY) 2017-10-13 – 2020-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2018: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2017: ¥800,000 (Direct Cost: ¥800,000)
Keywords楕円多重ゼータ値 / Fay identity / Kronecker関数 / Multiple zeta values / Associators / Double shuffle equations / Elliptic functions
Outline of Annual Research Achievements

特別研究員Nils Matthes氏はその学位論文において,楕円二重ゼータ値のなす空間の次元を完全に決定しているが,そこにおいて彼は Fay シャッフル関係式(Fay identity)という関係を独自に発見,証明し,さらに,本質的にこの関係式がすべての線型関係を与えることを証明した.その上,次元の上限だけでなく,独立性も証明することによって,次元を決定した.この仕事の意義は単に次元を決定しただけに留まらず,楕円多重ゼータ値が,従来の多重ゼータ値理論において不思議に現れていたモジュラー形式との関係を,概念的理論的に説明出来る可能性をはっきり示したことにある. Matthes氏はここに現れている Fay identity の役割を深く考察し,Kronecker関数という,古典的なテータ関数から構成される重要な関数が,本質的には Fay identityで一意的に特徴付けられることを示した.モジュラー形式の周期は,周期多項式というもので理解されるが,これは Gangl-Kaneko-Zagierの仕事により,二重ゼータ値と深い関係があることが示され,その関係を真に理解することが当分野での最重要問題と言ってもよいような対象である.そして楕円多重ゼータ値を研究する大きな動機の一つとして,このモジュラー形式との関係を真に理解することがある.Matthes氏の Kronecker関数の Fay identityによる特徴付けの議論は,関数等式から導かれる,冪級数の係数が満たす非線型漸化式を解くという,ある意味自然なもので,多少の工夫は必要になるものの,込み入った議論を必要としないものである.氏はその優れた洞察力から,Fay identityの持つ意味を明らかにした.非常にエレガントな仕事であり,楕円多重ゼータ値とKronecker 関数を結びつける大変重要な仕事である.

Research Progress Status

翌年度、交付申請を辞退するため、記入しない。

Strategy for Future Research Activity

翌年度、交付申請を辞退するため、記入しない。

Report

(2 results)
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (13 results)

All 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 8 results)

  • [Int'l Joint Research] Max Planck Institute for Mathematics(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] On Ecalle's and Brown's Polar Solutions to the Double Shuffle Equations Modulo Products2019

    • Author(s)
      Nils Matthes and Koji Tasaka
    • Journal Title

      Kyushu Journal of Mathematics

      Volume: 印刷中

    • NAID

      130007871386

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The meta-abelian elliptic KZB associator and periods of Eisenstein series2018

    • Author(s)
      Nils Matthes
    • Journal Title

      Selecta Math. (N.S.)

      Volume: 24(4)

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Twisted elliptic multiple zeta values and non-planar one-loop open-string amplitudes2018

    • Author(s)
      Broedel Johannes、Matthes Nils、Richter Gregor、Schlotterer Oliver
    • Journal Title

      Journal of Physics A: Mathematical and Theoretical

      Volume: 51 Issue: 28 Pages: 285401-285401

    • DOI

      10.1088/1751-8121/aac601

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Configuration spaces of Riemann surfaces and open string amplitudes2018

    • Author(s)
      Nils Matthes
    • Organizer
      Elliptic integrals Mathematics and Physics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] An algebraic characterization of the Kronecker function2018

    • Author(s)
      Nils Matthes
    • Organizer
      Mini-workshop: Elliptic multiple zeta values and mixed elliptic motives:
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] An algebraic characterization of the Kronecker function2018

    • Author(s)
      Nils Matthes
    • Organizer
      Mathematics seminar
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] An algebraic characterization of the Kronecker function2018

    • Author(s)
      Nils Matthes
    • Organizer
      数学講演会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Elliptic analogs of multiple zeta values2018

    • Author(s)
      Nils Matthes
    • Organizer
      Periods in number theory, algebraic geometry and physics
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Rational associator in small depths2018

    • Author(s)
      Nils Matthes
    • Organizer
      Periods in number theory, algebraic geometry and physics
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On Ecalle's and Brown's construction of rational solutions to double shuffle equations2018

    • Author(s)
      Nils Matthes
    • Organizer
      The 11th Young Mathematicians Conference on Zeta Functions
    • Related Report
      2017 Annual Research Report
  • [Presentation] The meta-abelian elliptic KZB associator and periods of Eisenstein series2018

    • Author(s)
      Nils Matthes
    • Organizer
      Machikaneyama Galois seminar
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] The elliptic double shuffle Lie algebra2017

    • Author(s)
      Nils Matthes
    • Organizer
      Polylogs, multiple zetas and related topics
    • Related Report
      2017 Annual Research Report
    • Invited

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Published: 2017-10-17   Modified: 2024-03-26  

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