• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Weight modules and crystal bases for quantum symmetric pairs

Research Project

Project/Area Number 20K14286
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 11010:Algebra-related
Research InstitutionOsaka Metropolitan University (2022-2023)
Osaka City University (2021)
Kyoto University (2020)

Principal Investigator

Watanabe Hideya  大阪公立大学, 数学研究所, 学振特別研究員(PD) (10848782)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords量子対称対 / 表現論 / 結晶基底 / 標準基底 / 組合せ論 / 安定性 / 結晶 / クリスタル / 組合せ論的表現論 / 量子群
Outline of Research at the Start

A型量子対称対の自然表現のテンソル積の構造を詳細に解析することで結晶基底の理論を構築する。結晶基底は、A型量子対称対のウェイト表現の構造を組合せ論的に記述する理論である。これにより、組合せ論的表現論の新たな研究領域の開拓が見込まれる。また、A型量子対称対の代数構造や表現の構造を応用して、一般の量子対称対のウェイト表現の構造を解析する。

Outline of Final Research Achievements

The basic of the theory of crystal bases for quantum symmetric pairs, which describes combinatorially the representation theory of quantum symmetric pairs, was established. This theory enables one to understand various complex representations via elementary calculation. Also, applications to the representation theory of Lie algebras and discrete dynamics were discovered.
We also investigated the canonical bases of quantum symmetric pairs, which play a central role in the structure theory of quantum symmetric pairs, with an idea of crystal bases in mind. As a result, it turned out that the canonical bases are stable.

Academic Significance and Societal Importance of the Research Achievements

本研究において、量子対称対の結晶基底の理論の基礎が初めて築かれ、また結晶基底の安定性が確認された。これらの結果は、当該研究分野(量子対称対の表現論)だけでなく、リー代数の表現論、量子群の表現論、離散力学系、可積分系、幾何学的表現論、圏論的表現論など多数の分野にまたがるものであり、様々な方向にさらなる発展を促すものである。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (27 results)

All 2024 2023 2022 2021 2020

All Journal Article (10 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results) Presentation (15 results) (of which Int'l Joint Research: 3 results,  Invited: 11 results) Funded Workshop (2 results)

  • [Journal Article] Kirillov-Reshetikhin modules and quantum K-matrices2024

    • Author(s)
      Kusano Hiroto、Okado Masato、Watanabe Hideya
    • Journal Title

      Communications in Mathematical Physics

      Volume: 405 Issue: 4

    • DOI

      10.1007/s00220-024-04975-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Based modules over the $$\imath $$quantum group of type AI2023

    • Author(s)
      Watanabe Hideya
    • Journal Title

      Mathematische Zeitschrift

      Volume: 303 Issue: 2

    • DOI

      10.1007/s00209-022-03189-z

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Stability of $\imath$canonical bases of irreducible finite type of real rank one2023

    • Author(s)
      Watanabe Hideya
    • Journal Title

      Representation Theory of the American Mathematical Society

      Volume: 27 Issue: 1 Pages: 1-29

    • DOI

      10.1090/ert/639

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Stability of $\imath$canonical bases of irreducible finite type of real rank one2022

    • Author(s)
      Hideya Watanabe
    • Journal Title

      arXiv

      Volume: -

    • Related Report
      2022 Research-status Report
  • [Journal Article] Classical weight modules over iquantum groups2021

    • Author(s)
      Watanabe Hideya
    • Journal Title

      Journal of Algebra

      Volume: 578 Pages: 241-302

    • DOI

      10.1016/j.jalgebra.2021.02.023

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Crystal bases of modified iquantum groups of certain quasi-split types2021

    • Author(s)
      Hideya Watanabe
    • Journal Title

      arXiv

      Volume: -

    • Related Report
      2021 Research-status Report
  • [Journal Article] A new tableau model for irreducible polynomial representations of the orthogonal group2021

    • Author(s)
      Hideya Watanabe
    • Journal Title

      arXiv

      Volume: -

    • Related Report
      2021 Research-status Report
  • [Journal Article] Based modules over the iquantum group of type AI2021

    • Author(s)
      Hideya Watanabe
    • Journal Title

      arXiv

      Volume: -

    • Related Report
      2021 Research-status Report
  • [Journal Article] Canonical bases for tensor products and super Kazhdan-Lusztig theory2020

    • Author(s)
      Bao Huanchen、Wang Weiqiang、Watanabe Hideya
    • Journal Title

      Journal of Pure and Applied Algebra

      Volume: 224 Issue: 8 Pages: 106347-106347

    • DOI

      10.1016/j.jpaa.2020.106347

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quantum Schur duality of affine type C with three parameters2020

    • Author(s)
      Fan Zhaobing、 Lai Chun-Ju、Li Yiqiang、 Luo Li、 Wang Weiqiang、 Watanabe, Hideya
    • Journal Title

      Mathematical Research Letters

      Volume: 27 Pages: 79-114

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 一般線形群から斜交群への分岐則と量子対称対2024

    • Author(s)
      渡邉英也
    • Organizer
      東工大表現論セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Recent progress on crystal base theory for quantum symmetric pairs2023

    • Author(s)
      Hideya Watanabe
    • Organizer
      Taipei Conference on Representation Theory VII
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A new branching rule from GL(C) to Sp(C)2023

    • Author(s)
      渡邉英也
    • Organizer
      表現論の組合せ論的側面とその周辺
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Stability of canonical bases of quantum symmetric pairs2023

    • Author(s)
      渡邉英也
    • Organizer
      南大阪代数セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 量子対称対の表現論から得られる一般線形群から斜交群への分岐則2023

    • Author(s)
      渡邉英也
    • Organizer
      日本数学会2023年度秋季総合分科会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 局所有限型 i 標準基底の安定性について2023

    • Author(s)
      渡邉英也
    • Organizer
      日本数学会2023年度秋季総合分科会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Invitation to crystal bases for quantum symmetric pairs2023

    • Author(s)
      Hideya Watanabe
    • Organizer
      Mini Course on Quantum Symmetric Pairs in Korea
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 有限型実階数 1 の $\imath$標準基底について2022

    • Author(s)
      渡邉英也
    • Organizer
      日本数学会2022年度秋季総合分科会
    • Related Report
      2022 Research-status Report
  • [Presentation] Crystal bases of modified i-quantum groups of certain quasi-split types2022

    • Author(s)
      Hideya Watanabe
    • Organizer
      UVA Algebra Seminar
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Based modules over the i-quantum group of type AI2021

    • Author(s)
      Hideya Watanabe
    • Organizer
      NUS Seminar
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Based modules over the i-quantum group of type AI2021

    • Author(s)
      Hideya Watanabe
    • Organizer
      Algebraic Lie Theory and Representation Theory 2021
    • Related Report
      2021 Research-status Report
  • [Presentation] Based modules over the i-quantum groups of type AI2020

    • Author(s)
      Watanabe Hideya
    • Organizer
      東京名古屋代数セミナー
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Recent progress on representation theory of iquantum groups2020

    • Author(s)
      Watanabe Hideya
    • Organizer
      立教大学数理物理セミナー
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Crystal bases of quantum groups and centralizer algebras2020

    • Author(s)
      Watanabe Hideya
    • Organizer
      代数学シンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Combinatorial representation theory arising from quantum symmetric pairs2020

    • Author(s)
      Watanabe Hideya
    • Organizer
      KIAS Workshop on Combinatorial Problems of Algebraic Origin
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Funded Workshop] Dualities in Quantum Groups2024

    • Related Report
      2023 Annual Research Report
  • [Funded Workshop] Integrable Systems and Quantum Groups2023

    • Related Report
      2022 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi