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Vertex algebras as deformation quantization of jet bundles

Research Project

Project/Area Number 17K14151
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Algebra
Research InstitutionUniversity of Tsukuba

Principal Investigator

Kuwabara Toshiro  筑波大学, 数理物質系, 准教授 (60524725)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords頂点代数 / アフィンW代数 / 有理チェレドニック代数 / ハイパートーリック多様体 / 量子化 / マッキー公式 / カイラル微分作用素 / グラスマン多様体 / W代数 / 表現論 / BRST簡約 / 超局所解析 / W代数 / 無限可積分系
Outline of Final Research Achievements

We constructed a sheaf of microlocalized chiral differential operators on a certain symplectic variety, called a hypertoric variety. By such construction, we introduced a new class of vertex algebras. By using such results, we studied the structure of a subregular W-algebra of type A, and gave explicit description of strong generators of the subregular W-algebra as a vertex algebra (joint work with Naoki Genra).
Also, we studied the representation theory of a rational Cherednik algebra associated with an Ariki-Koike algebra, and established a Mackey-type formula between induction-restriction functors (joint work with Hyohe Miyachi and Kentaro Wada).

Academic Significance and Societal Importance of the Research Achievements

頂点代数は共形場理論などの場の量子論や可積分系における無限次元の対称性を記述するための数学的構造である。本研究プロジェクトでは、ハイパートーリック多様体と呼ばれるシンプレクティック多様体上のジェット束という無限次元ベクトル束の量子化という方法で新しいクラスの頂点代数を導入しており、これは従来のアフィンリー代数や格子から出発して頂点代数を構成する方法とは異なる幾何学的・超局所解析的なアプローチである。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2021 2020 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results)

  • [Journal Article] On the Mackey formulas for cyclotomic Hecke algebras and categories O of rational Cherednik algebras2021

    • Author(s)
      Toshiro Kuwabara, Hyohe Miyachi, Kentaro Wada
    • Journal Title

      Osaka Journal of Mathematics

      Volume: 58

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Vertex Algebras Associated with Hypertoric Varieties2020

    • Author(s)
      Toshiro Kuwabara
    • Journal Title

      International Mathematics Research Notices

      Volume: - Issue: 18 Pages: 14316-14378

    • DOI

      10.1093/imrn/rnaa031

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Strong generators of the subregular W-algebra W^{K-N}(sl_N, f_{sub}) and combinatorial description at critical level2020

    • Author(s)
      Naoki Genra, Toshiro Kuwabara
    • Journal Title

      Letters in Mathematical Physics

      Volume: 110 Issue: 1 Pages: 21-41

    • DOI

      10.1007/s11005-019-01211-w

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] quantization of toric hyperkahler varieties and its chiralization2020

    • Author(s)
      Toshiro Kuwabara
    • Organizer
      Workshop: Vertex Operator Algebras and Related Topics in Kumamoto
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Deformed TCDO over Grassmannian and simple affine VOA2019

    • Author(s)
      Toshiro Kuwabara
    • Organizer
      Representation Theory of Algebraic Groups and Quantum Groups
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Vertex algebras associated with hypertoric varieties2018

    • Author(s)
      Toshiro Kuwabara
    • Organizer
      RIMS Workshop 10th CFT Seminar:A Conference on Vertex Algebras and Related Topics
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Vertex algebras associated with hypertoric varieties2018

    • Author(s)
      Toshiro Kuwabara
    • Organizer
      Vertex algebras, factorization algebras and applications (Kavli IPMU)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Vertex algebras associated with hypertoric varieties2017

    • Author(s)
      桑原 敏郎
    • Organizer
      Algebraic Lie Theory and Representation Theory 2017
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2022-01-27  

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