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Gelfand-Tsetlin basis and geometric representations of elliptic quantum groups

Research Project

Project/Area Number 17K05195
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Algebra
Research InstitutionTokyo University of Marine Science and Technology

Principal Investigator

Konno Hitoshi  東京海洋大学, 学術研究院, 教授 (00291477)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords楕円量子群 / 楕円コホモロジー / weight function / stable envelope / Gelfand-Tsetlin基底 / 楕円超幾何積分 / 楕円q-KZ方程式 / 幾何学的表現 / 楕円量子トロイダル代数 / q-Fock表現 / 繋絡頂点作用素 / 変形W代数 / Jordan quiver / ヒルベルトスキーム / ヒルツェブルフ種数 / Nekrasov関数 / 量子トロイダル代数 / q-Fock表現 / テンソル積表現 / Drinfeld余積 / 幾何学的表現論 / 有限次元表現 / 旗多様体 / q-KZ方程式 / 量子群 / アフィン リー環 / ヴィラソロ代数 / 超幾何関数
Outline of Final Research Achievements

Elliptic weight functions have been derived by using the vertex operators of the elliptic quantum group U_{q,p}(sl_N), and identified with Okounkov’s elliptic stable envelopes on the equivariant elliptic cohomology Ell_T(X) for the cotangent bundle X of the partial flag variety. Defining the fixed point classes on Ell_T(X) in terms of the stable classes and basing on this identification, we have shown that the finite dimensional representation of U_{q,p}(sl_N) on the Gelfand-Tsetlin basis can be lifted to the geometric representation on the fixed point classes. Furthermore a formulation of the elliptic quantum toroidal algebras and a construction of their representations have been done. A conjecture on their geometric interpretation has also been obtained.

Academic Significance and Societal Importance of the Research Achievements

Ginzburg-VasserotやNakajimaらによって, アフィンリー環やトロイダル代数あるいはそれらの量子変形代数の表現が, 対応する箙多様体Xに対する同変コホモロジーあるいは同変K-理論上に幾何学的に構成されたことを受けて, これらの楕円コホモロジー上への拡張の存在が予想されていた. 本研究ではこの予想を裏付ける例を具体的に構成した. 最近, 楕円量子群の(幾何学的)表現と3次元の超対称ゲージ理論における鏡対称性やもっと一般に錐的特異多様体のシンプレクティック双対性との関連が指摘されており, 本研究の結果を足掛かりとして, 今後この方向の研究が加速されると期待される.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (17 results)

All 2020 2019 2018 2017

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (14 results) (of which Int'l Joint Research: 7 results,  Invited: 10 results) Book (1 results)

  • [Journal Article] Elliptic Stable Envelopes and Finite-dimensional Representations of Elliptic Quantum Group2018

    • Author(s)
      Hitoshi Konno
    • Journal Title

      Journal of Integrable Systems

      Volume: 3 Issue: 1 Pages: 1-43

    • DOI

      10.1093/integr/xyy012

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Elliptic weight functions and elliptic q-KZ equation2017

    • Author(s)
      Hitoshi Konno
    • Journal Title

      Journal of Integrable Systems

      Volume: 2 Pages: 1-43

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] E, E & E2020

    • Author(s)
      Hitoshi Konno
    • Organizer
      q, q & q, 神戸大学数学教室
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Elliptic Quantum Groups, Representations and Geometry2019

    • Author(s)
      Hitoshi Konno
    • Organizer
      Elliptic Cohomology Days, Univ. of Illinois, USA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Elliptic Quantum (Toroidal) Algebras and Their Representations2019

    • Author(s)
      Hitoshi Konno
    • Organizer
      Elliptic Integrable Systems, NORDITA, Stockholm
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Elliptic Quantum Groups and Deformed W-algebras2019

    • Author(s)
      Hitoshi Konno
    • Organizer
      Representation Theory and Integrable Systems, ETH, Zurich
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 楕円量子群の表現と関連する幾何学2019

    • Author(s)
      Hitoshi Konno
    • Organizer
      東京大学数理科学研究科集中講義
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Representations of the Elliptic Quantum Group and Related Geometry2019

    • Author(s)
      Hitoshi Konno
    • Organizer
      Mathematical Physics Seminar, Perimeter Institute for Theoretical Physics, Waterloo, Canada
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Elliptic Quantum Toroidal Algebras2019

    • Author(s)
      Hitoshi Konno
    • Organizer
      表現論と特殊函数セミナー2019沖縄, 琉球大学 理学部 数学教室
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Elliptic stable envelopes and finite-dimensional representation of elliptic quantum group of type $gl_N$2018

    • Author(s)
      Hitoshi Konno
    • Organizer
      Quantum Integrability and Quantum Schubert Calculus, The Royal Society at Chicheley Hall, UK
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Elliptic stable envelopes and finite-dimensional representation of elliptic quantum group2018

    • Author(s)
      Hitoshi Konno
    • Organizer
      Symmetry and Integrability of Difference Equations, Fukuoka, Japan
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Elliptic Quantum Group and Elliptic Stable Envelopes2018

    • Author(s)
      Hitoshi Konno
    • Organizer
      京都表現論セミナー, 京都大学 理学部 数学教室
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Elliptic Weight Functions and Finite Dimensional Representations of the Elliptic Quantum Group2017

    • Author(s)
      Hitoshi Konno
    • Organizer
      Topological Field Theories, String Theory and Matrix Models, ITEP, Moscow
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Elliptic weight functions and finite-dimensional representation of elliptic quantum group2017

    • Author(s)
      Hitoshi Konno
    • Organizer
      Geometric R-Matrices: From Geometry to Probability, Univ.of Melbourne, Australia
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 楕円量子群と楕円重み関数2017

    • Author(s)
      今野 均
    • Organizer
      日本数学会秋季総合分科会
    • Related Report
      2017 Research-status Report
  • [Presentation] 楕円量子群の Gelfand-Tsetlin 基底上の有限次元表現2017

    • Author(s)
      今野 均
    • Organizer
      日本数学会秋季総合分科会
    • Related Report
      2017 Research-status Report
  • [Book] Advanced Studies in Pure Mathematics 76, Representation Theory, Special Functions and Painleve Equations - RIMS 20152018

    • Author(s)
      H.Konno, H.Sakai, J.Shiraishi, T.Suzuki and Y.Yamada
    • Total Pages
      541
    • Publisher
      Mathematical Society of Japan
    • ISBN
      9784864970501
    • Related Report
      2018 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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