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Representation theoretic and arithmetic study of periods of automorphic forms

Research Project

Project/Area Number 18540037
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Algebra
Research InstitutionKyushu University

Principal Investigator

KONNO Takuya  Kyushu University, 大学院・数理学研究院, 准教授 (00274431)

Co-Investigator(Kenkyū-buntansha) 平賀 郁  京都大学, 大学院・理学研究科, 講師 (10260605)
市野 篤史  大阪市立大学, 大学院・理学研究科, 講師 (40347480)
Co-Investigator(Renkei-kenkyūsha) HIRAGA Kaoru  京都大学, 大学院・理学研究科, 講師 (10260605)
ICHINO Atsushi  大阪市立大学, 大学院・理学研究科, 講師 (40347480)
Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,190,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥690,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2007: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2006: ¥1,200,000 (Direct Cost: ¥1,200,000)
Keywords整数論 / 保型形式 / 周期 / Gross-Prasad予想 / 局所テータ対応 / endoscopy / ユニタリ群 / テータ対応 / L関数 / 内視論 / 保型周期 / L不可分性 / L函数 / 志村多様体
Research Abstract

保型形式のモジュラーサイクル上の周期を保型表現論、特にテータ対応を用いて研究した。テータ対応の基盤となるのは局所簡約dual pairの間の局所テータ対応だが、実ユニタリ群からなるdual pairの間の局所テータ対応の明示的な記述を与えた。また非アルキメデス局所体の場合にも2変数以下のユニタリ群に対して同様な記述を得た。その際に副産物として2変数ユニタリ群の1変数ユニタリ部分群に沿っての局所周期についてのGross-Prasad予想を証明した。またこれを用いて4変数準分裂ユニタリ群上のCAP保型形式と呼ばれる重要な保型形式の族を全て記述した。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (25 results)

All 2008 2007 2006

All Journal Article (11 results) (of which Peer Reviewed: 5 results) Presentation (14 results)

  • [Journal Article] Local Gross-Prasad conjecture for U(2)2008

    • Author(s)
      今野拓也
    • Journal Title

      Proc. National Inst. Math Sci. 3

      Pages: 37-47

    • Related Report
      2008 Final Research Report
  • [Journal Article] Formal degrees and the adjoint γ-factors2008

    • Author(s)
      平賀郁、市野篤史、池田保
    • Journal Title

      Journal of the Amer. Math. Soc. 21

      Pages: 283-304

    • Related Report
      2008 Final Research Report
  • [Journal Article] Local θ-correspondence for real unitary dualpairs2008

    • Author(s)
      今野拓也、今野和子
    • Journal Title

      RIMS Kokyuroku Bessatsu B7 : Representation Theory and Analysis on Homogeneous Spaces(ed. H. Sekiguchi)

      Pages: 57-72

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Local Gross-Prasad conjecture for U_{E/F}(2)2008

    • Author(s)
      今野 拓也
    • Journal Title

      Proceedings of the National Institute for Mathematical Sciences 3

      Pages: 37-47

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Formal degrees and the adjoint γ-factors2008

    • Author(s)
      平賀 郁、池田 保、市野 篤史
    • Journal Title

      Journal of the American Math. Society 21

      Pages: 283-304

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On doubling construction for real unitary dual pairs2007

    • Author(s)
      今野拓也、今野和子
    • Journal Title

      Kyushu Journal of Math. 61

      Pages: 35-82

    • NAID

      130000063183

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] On the Siegel-Weil formula for unitary groups2007

    • Author(s)
      市野篤史
    • Journal Title

      Math. Zeit. 255

      Pages: 721-729

    • Related Report
      2008 Final Research Report
  • [Journal Article] On doubling construction for real unitary dual pairs2007

    • Author(s)
      今野 拓也、今野 和子
    • Journal Title

      Kyushu Journal of Math. 61

      Pages: 35-82

    • NAID

      130000063183

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the Siegel-Weil formula for unitary groups2007

    • Author(s)
      市野 篤史
    • Journal Title

      Mathematical Zeitschrift 255

      Pages: 721-729

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On doubling construction for real unitary dual pairs2007

    • Author(s)
      今野拓也, 今野和子
    • Journal Title

      Kyushu Journal of Mathematics 61・1

      Pages: 35-82

    • NAID

      130000063183

    • Related Report
      2006 Annual Research Report
  • [Journal Article] On the Siegel-Weil formula for unitary groups2007

    • Author(s)
      市野篤史
    • Journal Title

      Mathematische Zeitschrift 255・4

      Pages: 721-729

    • Related Report
      2006 Annual Research Report
  • [Presentation] Local Gross-Prasad conjecture for U(2)2008

    • Author(s)
      今野拓也
    • Organizer
      International Symposium on Autormophic Forms and Shimura Variety
    • Place of Presentation
      Inha大学(韓国)
    • Year and Date
      2008-11-27
    • Related Report
      2008 Final Research Report
  • [Presentation] Local Gross-Prasad conjecture for U(2)2008

    • Author(s)
      今野 拓也
    • Organizer
      International Symposium on Automorphic Forms, L-Functions, and Shimura Varieties
    • Place of Presentation
      Inha大学(韓国)
    • Year and Date
      2008-11-27
    • Related Report
      2008 Annual Research Report
  • [Presentation] GL(2)上の保型形式とL函数2008

    • Author(s)
      今野拓也
    • Organizer
      第16回整数論サマースクール、幕張メッセ
    • Year and Date
      2008-08-18
    • Related Report
      2008 Final Research Report
  • [Presentation] Local Gross-Prasad conjecture for U(2)2008

    • Author(s)
      今野拓也
    • Organizer
      Workshop on Representation Theory and Automorphic Forms, Singapore
    • Place of Presentation
      国立大学
    • Year and Date
      2008-06-25
    • Related Report
      2008 Final Research Report
  • [Presentation] Local Gross-Prasad conjecture for U(2)2008

    • Author(s)
      今野 拓也
    • Organizer
      Workshop on Representation Theory and Automorphic Forms
    • Place of Presentation
      Singapore国立大学
    • Year and Date
      2008-06-25
    • Related Report
      2008 Annual Research Report
  • [Presentation] 総実体上のGross-Zagier型公式紹介2007

    • Author(s)
      今野拓也
    • Organizer
      Heegner点とGross-Zagier公式勉強会
    • Place of Presentation
      東北大学
    • Year and Date
      2007-10-10
    • Related Report
      2008 Final Research Report
  • [Presentation] 総実体上のGross-Zagier型公式(Shou-Wu Zhangによる)2007

    • Author(s)
      今野 拓也
    • Organizer
      Gross-Zagier公式勉強会
    • Place of Presentation
      東北大学
    • Year and Date
      2007-10-10
    • Related Report
      2007 Annual Research Report
  • [Presentation] 保型形式の周期とL関数の特殊値2007

    • Author(s)
      市野 篤史
    • Organizer
      第52回代数学シンポジウム
    • Place of Presentation
      神戸大学
    • Year and Date
      2007-08-07
    • Related Report
      2007 Annual Research Report
  • [Presentation] Formal degrees and adjoint γ-factors2007

    • Author(s)
      市野 篤史
    • Organizer
      France-Japan conference on automorphic endosocopy
    • Place of Presentation
      CIRM, マルセイユ(フランス)
    • Year and Date
      2007-06-15
    • Related Report
      2007 Annual Research Report
  • [Presentation] Endoscopic identities for CAP representations of U(2,2)2007

    • Author(s)
      今野拓也
    • Organizer
      France-Japan conference on automorphic endoscopy
    • Place of Presentation
      CIRM(フランス)
    • Year and Date
      2007-06-12
    • Related Report
      2008 Final Research Report
  • [Presentation] Endoscopic identities for CAP representations of U(2,2)2007

    • Author(s)
      今野 拓也
    • Organizer
      France-Japan conference on automorphic endoscopy
    • Place of Presentation
      CIRM, マルセイユ(フランス)
    • Year and Date
      2007-06-12
    • Related Report
      2007 Annual Research Report
  • [Presentation] On L-packets of inner forms of SL(N)2007

    • Author(s)
      平賀 郁
    • Organizer
      France-Japan conference on automorphic endoscopy
    • Place of Presentation
      CIRM, マルセイユ(フランス)
    • Year and Date
      2007-06-12
    • Related Report
      2007 Annual Research Report
  • [Presentation] Spectral decomposition of the automorphic spectrum of GSp(4)2006

    • Author(s)
      今野拓也
    • Organizer
      整数論オータムワークショップ
    • Place of Presentation
      白馬ハイマウントホテル
    • Year and Date
      2006-11-08
    • Related Report
      2008 Final Research Report
  • [Presentation] 実ユニタリreductive dual pairのダブリング構成法について2006

    • Author(s)
      今野拓也、今野和子
    • Organizer
      RIMS 研究集会「表現論と等質空間上の解析学」
    • Place of Presentation
      京大数理研
    • Year and Date
      2006-08-22
    • Related Report
      2008 Final Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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