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New developments in the study of quantum groups

Research Project

Project/Area Number 19K03426
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 11010:Algebra-related
Research InstitutionOsaka Metropolitan University (2022)
Osaka City University (2019-2021)

Principal Investigator

OKADO Masato  大阪公立大学, 大学院理学研究科, 教授 (70221843)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords量子群 / 超リー代数 / 結晶基底 / ヤン・バクスター方程式 / 組合せ論的表現論
Outline of Research at the Start

量子可積分系から生まれた新しい代数である量子群について、その表現論を主に結晶基底の組合せ論の視点から研究する。特に、研究代表者が20年来取り組んでいるX=M予想についての研究も、非例外型アフィンリー環に対応する場合には解決することができたので、今後の研究交流によりさらに新しい知見を取り入れ、現在温めている例外型アフィンリー環に対応する Kirillov-Reshetikhin 加群の結晶基底の存在についてのアイデアを具体化させる。

Outline of Final Research Achievements

Solutions of the reflection equation and the representation theory of quantum affine (hyper)algebras are studied. In the former, we first studied a method to obtain from solutions of the three-dimensional reflection equation, but gradually shifted to a method using the theory of iquantum groups. In the case of type A, we obtained explicit forms of the combinatorial K-matrices for all quasi-split Satake diagrams. In the latter, in the case of affine quantum groups associated with orthosymplectic Lie superalgebras, we defined a category of representations including q-oscillator representations and constructed a new family of representations. We also found that q-oscillator representations of type C and finite-dimensional representations of type D are mutually interpolated by an exact monoidal functor.

Academic Significance and Societal Importance of the Research Achievements

反射方程式は、ヤン・バクスター方程式とともに境界付き1次元量子系や2次元統計力学系の可積分条件を与えるものである。この解が多く構成されたことによって可積分系研究への応用が期待される。量子アフィン超代数は、従来詳しく研究され、多くの応用をもたらした量子アフィン代数を拡張するものであり、超双対性を通じて量子アフィン代数の有限次元表現の圏とq-振動子表現の圏を関係づける。また、古くから表現論分野で知られているHoweの双対ペアの理論の量子アフィン類似とみなすこともでき、Howe理論を新しい視点で再構成することにも繋がる。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (15 results)

All 2022 2021 2019 Other

All Int'l Joint Research (4 results) Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results)

  • [Int'l Joint Research] ソウル国立大学(韓国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ソウル国立大学(韓国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ソウル国立大学(韓国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ソウル国立大学(韓国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] PARAFERMIONIC BASES OF STANDARD MODULES FOR TWISTED AFFINE LIE ALGEBRAS OF TYPE A^{(2)}_{2l-1}, D^{(2)}_{l+1}, E^{(2)}_6 and D^{(3)}_42022

    • Author(s)
      Masato Okado and Ryo Takenaka
    • Journal Title

      Algebras and Representation Theory

      Volume: 21 Issue: 08 Pages: 1-16

    • DOI

      10.1007/s10468-022-10145-2

    • URL

      https://ocu-omu.repo.nii.ac.jp/records/2016923

      https://ocu-omu.repo.nii.ac.jp/records/2019605

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] SOLUTION TO THE REFLECTION EQUATION RELATED TO THE iQUANTUM GROUP OF TYPE AII2022

    • Author(s)
      Hiroto Kusano and Masato Okado
    • Journal Title

      Commun. Algebra

      Volume: 20 Issue: 18 Pages: 1-8

    • DOI

      10.1080/00927872.2022.2036749

    • URL

      https://ocu-omu.repo.nii.ac.jp/records/2016906

      https://ocu-omu.repo.nii.ac.jp/records/2019781

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Kirillov-Reshetikhin modules of generalized quantum group of type A2021

    • Author(s)
      Jae-Hoon Kwon and Masato Okado
    • Journal Title

      Publ. RIMS

      Volume: 57 Pages: 993-1039

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Higher Level q-Oscillator Representations for U_q(C_n^(1)),U_q(C^(2)(n+1)) and U_q(B^(1)(0,n))2021

    • Author(s)
      Jae-Hoon Kwon and Masato Okado
    • Journal Title

      Communications in Mathematical Physics

      Volume: 20 Issue: 12 Pages: 1-36

    • DOI

      10.1007/s00220-021-04009-x

    • URL

      https://ocu-omu.repo.nii.ac.jp/records/2016900

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Matrix product solution to the reflection equation associated with a coideal subalgebra of $U_q(A^{(1)}_{n-1})$2019

    • Author(s)
      Atsuo Kuniba, Masato Okado and Akihito Yoneyama
    • Journal Title

      Letters in Mathematical Physics

      Volume: 109 Issue: 9 Pages: 2049-2067

    • DOI

      10.1007/s11005-019-01175-x

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Reflection $K$ matrices associated with an Onsager coideal of $U_p(A^{(1)}_{n-1}), U_p(B^{(1)}_n), U_p(D^{(1)}_n)$ and $U_p(D^{(2)}_{n+1})$2019

    • Author(s)
      Atsuo Kuniba, Masato Okado and Akihito Yoneyama
    • Journal Title

      Journal of Physics A: Mathematical and Theoretical

      Volume: 52 Issue: 37 Pages: 375202-375202

    • DOI

      10.1088/1751-8121/ab3715

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Set-theoretical solutions to the reflection equation associated to the quantum affine algebra of type $A^{(1)}_{n-1}$2019

    • Author(s)
      Atsuo Kuniba and Masato Okado
    • Journal Title

      Journal of Integrable Systems

      Volume: 4 Issue: 1 Pages: 1-10

    • DOI

      10.1093/integr/xyz013

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Box-ball systems: reviews and recent developments2022

    • Author(s)
      Masato Okado
    • Organizer
      CRM Workshop "Box-Ball Systems from Integrable Systems and Probabilistic Perspectives"
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Introduction to crystals and related combinatorics2022

    • Author(s)
      Masato Okado
    • Organizer
      MATRIX/RIMS tandem workshop "Integrability, combinatorics and representation theory"
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fermionic character formula --- Inspiration from Omar2022

    • Author(s)
      Masato Okado
    • Organizer
      Inspiration in Mathematical Physics
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Quantum super duality2019

    • Author(s)
      Masato Okado
    • Organizer
      RIMS研究集会 Representation theory of algebraic groups and quantum groups
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-04-18   Modified: 2024-01-30  

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