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Modular representation theory of algebras associated with complex reflection groups

Research Project

Project/Area Number 22840025
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Algebra
Research InstitutionShinshu University (2011)
Kyoto University (2010)

Principal Investigator

WADA Kentaro  信州大学, 理学部, 助教 (60583862)

Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥2,093,000 (Direct Cost: ¥1,610,000、Indirect Cost: ¥483,000)
Fiscal Year 2011: ¥1,248,000 (Direct Cost: ¥960,000、Indirect Cost: ¥288,000)
Fiscal Year 2010: ¥845,000 (Direct Cost: ¥650,000、Indirect Cost: ¥195,000)
Keywords表現論 / Hecke代数 / Schur代数 / 複素鏡映群 / Fock空間 / 圏化 / モジュラー表現 / cyclotomic q-Schur代数 / Ariki-Koike代数 / cyclotomic Hecke代数 / 有理Cherednik代数 / 量子群
Research Abstract

We studied about modular representation theory of cyclotomic Hecke algebras and cyclotomic q-Schur algebras associated with the complex reflection groups of type G(r, 1, n). In the modular representation theory, it is one of the important problems to determine the character of modules. We described the character of Weyl modules of cyclotomic q-Schur algebras by using some combinatorics. We also defined induction and restriction functors. By using these functors, we showed that module categories of cyclotomic q-Schur algebras categorify the Fock space.

Report

(3 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • Research Products

    (29 results)

All 2012 2011 2010

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (19 results)

  • [Journal Article] Blocks of category O for rational Cherednik algebras and of cyclotomic Hecke algebras of type G(r, p, n)2011

    • Author(s)
      Kentaro Wada
    • Journal Title

      Osaka J. Math.

      Volume: 48 Pages: 895-912

    • NAID

      120005986541

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Presenting cyclotomic q-Schur algebras2011

    • Author(s)
      Kentaro Wada
    • Journal Title

      Nagoya Math. J.

      Volume: 201 Pages: 45-116

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Blocks of category O for rational Chrednik algebras and of cyclotomic Hecke algebras of type G(r,p,n)2011

    • Author(s)
      Kentaro Wada
    • Journal Title

      Osaka Journal of Mathematics

      Volume: 48 Pages: 895-912

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Presenting cyclotomic q-Schur algebras2011

    • Author(s)
      Kentaro Wada
    • Journal Title

      Nagoya Mathematical Journal

      Volume: 201 Pages: 45-116

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On decomposition numbers with Jantzen filtration of cyclotomic q-Schur algebras2010

    • Author(s)
      Kentaro Wada
    • Journal Title

      Represent. Theory

      Volume: 14 Pages: 417-434

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Cyclotomic q-Schur algebras associated to the Ariki-Koike algebra2010

    • Author(s)
      Toshiaki Shoji and Kentaro Wada
    • Journal Title

      Represent, Theory

      Volume: 14 Pages: 379-416

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] The representation type of Ariki-Koike algebras and cyclotomic q-Schur algebras2010

    • Author(s)
      Kentaro Wada
    • Journal Title

      Adv. Math.

      Volume: 224 Pages: 539-560

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Cyclotomic q-Schur algebras associated to the Ariki-Koike algebra2010

    • Author(s)
      Toshiaki Shoji, Kentaro Wada
    • Journal Title

      Representation Theory

      Volume: 14 Pages: 379-416

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On decomposition numbers with Jantzen filtration of cyclotomic q-Schur algebras2010

    • Author(s)
      Kentaro Wada
    • Journal Title

      Representation Theory

      Volume: 14 Pages: 417-434

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The representation type of Ariki-Koike algebras and cyclotomic q-Schur algebras2010

    • Author(s)
      Kentaro Wada
    • Journal Title

      Advances in Mathematics

      Volume: 224 Pages: 539-560

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Drinfeld type realization of cyclotomic q-Schur algebras2012

    • Author(s)
      Kentaro Wada
    • Organizer
      Representation Theory of Chevalley Groups and Related topics
    • Place of Presentation
      名古屋大学
    • Year and Date
      2012-03-12
    • Related Report
      2011 Final Research Report
  • [Presentation] Drinfeld type realization of cyclotomic q-Schur algebras2012

    • Author(s)
      Kentaro Wada
    • Organizer
      Representation Theory of Chevalley Groups and Related Topics
    • Place of Presentation
      名古屋大学(招待講演)
    • Year and Date
      2012-03-12
    • Related Report
      2011 Annual Research Report
  • [Presentation] Drinfeld type realization of cyclotomic q-Schur algebras2011

    • Author(s)
      Kentaro Wada
    • Organizer
      Shanghai Workshop on Representation Theory
    • Place of Presentation
      上海(中国)
    • Year and Date
      2011-12-11
    • Related Report
      2011 Final Research Report
  • [Presentation] Drinfeld type realization of cyclotomic q-Schur algebras2011

    • Author(s)
      Kentaro Wada
    • Organizer
      Shanghai Workshop on Representation Theory
    • Place of Presentation
      上海(中国)(招待講演)
    • Year and Date
      2011-12-11
    • Related Report
      2011 Annual Research Report
  • [Presentation] Induction and restriction functors for cyclotomic q-Schur algebras2011

    • Author(s)
      和田堅太郎
    • Organizer
      第14回代数群と量子群の表現論研究集会
    • Place of Presentation
      国民宿舎小豆島(香川県)
    • Year and Date
      2011-06-05
    • Related Report
      2011 Final Research Report
  • [Presentation] Induction and Restriction Functors for cyclotomic q-Schur algebras2011

    • Author(s)
      和田堅太郎
    • Organizer
      第14回代数群と量子群の表現論研究集会
    • Place of Presentation
      国民宿舎小豆島(香川県)
    • Year and Date
      2011-06-05
    • Related Report
      2011 Annual Research Report
  • [Presentation] cyclotomic q-Schur代数を用いたFock空間の圏化2011

    • Author(s)
      和田堅太郎
    • Organizer
      Workshop on Representation theory of Algebras
    • Place of Presentation
      東京大学玉原国際セミナーハウス
    • Related Report
      2011 Final Research Report
  • [Presentation] cyclotomic q-Schur代数を用いたFock空間の圏化2011

    • Author(s)
      和田堅太郎
    • Organizer
      Workshop on Representation theory of Algebras
    • Place of Presentation
      東京大学玉原国際セミナーハウス(招待講演)
    • Related Report
      2011 Annual Research Report
  • [Presentation] Induction and Restriction functors for cyclotomic q-Schur algebras2010

    • Author(s)
      Kentaro Wada
    • Organizer
      Shanghai Workshop on Representation Theory
    • Place of Presentation
      上海(中国)
    • Year and Date
      2010-12-12
    • Related Report
      2011 Final Research Report
  • [Presentation] Induction and Restriction functors for cyclotomic q-Schur algebras2010

    • Author(s)
      Kentaro Wada
    • Organizer
      Shanghai Workshop on Representation Theory
    • Place of Presentation
      Tongji University(中国)(招待講演)
    • Year and Date
      2010-12-12
    • Related Report
      2010 Annual Research Report
  • [Presentation] On Weyl modules of cyclotomic q-Schur algebras2010

    • Author(s)
      和田堅太郎
    • Organizer
      日本数学会秋季総合分科会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2010-09-25
    • Related Report
      2011 Final Research Report
  • [Presentation] Blocks of category O for rational Cherednik algebras and of cyclotomic Hecke algebras of type G(r, p, n)2010

    • Author(s)
      和田堅太郎
    • Organizer
      日本数学会秋季総合分科会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2010-09-25
    • Related Report
      2011 Final Research Report
  • [Presentation] Blocks of category O for rational Cherednik algebras and of cyclotomic Hecke algebras of type G(r, p, n)2010

    • Author(s)
      和田堅太郎
    • Organizer
      日本数学会 秋季総合分科会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2010-09-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] On Weyl modules of cyclotomic q-Schur algebras2010

    • Author(s)
      和田堅太郎
    • Organizer
      日本数学会 秋季総合分科会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2010-09-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] On cyclotomic q-Schur algebras2010

    • Author(s)
      Kentaro Wada
    • Organizer
      Representation Theory of Algebraic Groups and Quantum Groups
    • Place of Presentation
      名古屋大学
    • Year and Date
      2010-08-04
    • Related Report
      2011 Final Research Report
  • [Presentation] On cyclotomic q-Schur algebras2010

    • Author(s)
      Kentaro Wada
    • Organizer
      Representation Theory of Algebraic Groups and Quantum Groups,10
    • Place of Presentation
      名古屋大学(招待講演)
    • Year and Date
      2010-08-04
    • Related Report
      2010 Annual Research Report
  • [Presentation] On cyclotomic q-Schur algebras, Diagram algebras and related topics2010

    • Author(s)
      和田堅太郎
    • Organizer
      健康文化村カルチャーリゾートフェストーネ
    • Place of Presentation
      沖縄県
    • Year and Date
      2010-07-08
    • Related Report
      2011 Final Research Report
  • [Presentation] On cyclotomic q-Schur algebras2010

    • Author(s)
      和田堅太郎
    • Organizer
      Diagram algebras and related topics(RIMS 合宿型セミナー)
    • Place of Presentation
      健康文化村カルチャーリゾートフェストーネ(沖縄県)(招待講演)
    • Year and Date
      2010-07-08
    • Related Report
      2010 Annual Research Report
  • [Presentation] On Weyl modules of cyclotomic q-Schur algebras2010

    • Author(s)
      和田堅太郎
    • Organizer
      第13回代数群と量子群の表現論研究集会
    • Place of Presentation
      すいとぴあ江南(愛知県)
    • Year and Date
      2010-06-05
    • Related Report
      2011 Final Research Report 2010 Annual Research Report

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Published: 2010-08-27   Modified: 2016-04-21  

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