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Difference analogues for conformal towers and the Ding-Iohara algebra

Research Project

Project/Area Number 24540206
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Global analysis
Research InstitutionThe University of Tokyo

Principal Investigator

SHIRAISHI Junichi  東京大学, 数理(科)学研究科(研究院), 准教授 (20272536)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
KeywordsMacdonald多項式 / Askey-Wilson多項式 / Koornwinder多項式 / Ding-Iohara代数 / topological vertex / Laumon空間 / 共形場の理論 / 楕円超幾何級数 / Laumon space / Ruijsenaars作用素 / Nekrasov分配関数 / Whittaker関数
Outline of Final Research Achievements

A quantum group approach to the refined topological vertex of Iqbal-Kozcaz-Vafa is presented in terms of the Ding-Iohara algebra (joint work with H. Awata and B. Feigin).
A four-fold series expression is obtained for the Askey-Wilson polynomial. It gives us an explicit formula for the Koornwinder polynomials in one row case. Lassalle's conjectures for the Macdonald polynomials for types B,C,D are recovered, hence proved, as special cases of the formula for the Koornwinder polynomials (joint work with A. Hoshino and M. Noumi).
A geometric construction is presented for the Macdonald polynomials of A-type as the Euler characteristic of the twisted de Rham complex for the Laumon space. The Macdonald polynomials of other types can be considered in some other algebro-geometric setting, and a conjecture aout a geometric construction is given (joint work with A. Braverman and M. Finkelberg).

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (10 results)

All 2015 2014 2013 2012 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 2 results) Presentation (7 results) (of which Invited: 3 results)

  • [Journal Article] Some transformation formulas associated with Askey-Wilson polynomials and Lassalle's formulas for Macdonald-Koornwinder polynomials2015

    • Author(s)
      A. Hoshino, M. Noumi and J. Shiraishi
    • Journal Title

      Moscow Mathematical Journal

      Volume: -

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Macdonald polynomials, Laumon spaces and perverse coherent sheaves2014

    • Author(s)
      Alexander Braverman, Michael Finkelberg, Jun'ichi Shiraishi
    • Journal Title

      Contemp. Math.

      Volume: 610 Pages: 23-41

    • Related Report
      2014 Annual Research Report 2013 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Quantum algebraic approach to refined topological vertex2012

    • Author(s)
      H. Awata, B. Feigin and J. Shiraishi
    • Journal Title

      J. High Energy Phys

      Volume: no. 3 Issue: 3 Pages: 41-41

    • DOI

      10.1007/jhep03(2012)041

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] 一行型Cn型Macdonald多項式のタブロー和表示2015

    • Author(s)
      星野歩, 野海正俊, 柴原淳, 白石潤一
    • Organizer
      日本数学会年会
    • Place of Presentation
      明治大学
    • Year and Date
      2015-03-23
    • Related Report
      2014 Annual Research Report
  • [Presentation] Askey-Wilson多項式の四重級数表示2014

    • Author(s)
      星野歩, 野海正俊, 白石潤一
    • Organizer
      日本数学会秋季総合分科会
    • Place of Presentation
      広島大学
    • Year and Date
      2014-09-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] 一行型Koornwinder多項式の明示的公式とLassalleの予想の証明2014

    • Author(s)
      星野歩, 野海正俊, 白石潤一
    • Organizer
      日本数学会秋季総合分科会
    • Place of Presentation
      広島大学
    • Year and Date
      2014-09-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] Elliptic hypergeometric series, Ruijsenaars operator and Heine’s transformation formula2013

    • Author(s)
      Jun’ichi Shiraishi
    • Organizer
      Elliptic Integrable Systems and Hypergeometric Functions
    • Place of Presentation
      Lorents Center, Netherlands
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] On Askey-Wilson polynomials2013

    • Author(s)
      Jun’ichi Shiraishi
    • Organizer
      Representation Theory and applications to Combinatorics, Geometry and Quantum Physics, International Conference dedicated to the 60-th birthday of Boris Feigin
    • Place of Presentation
      Higher School of Economics, Independent University of Moscow, Russia
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Vertex operators, Nekrasov partition functions and Macdonald polynomials

    • Author(s)
      白石潤一
    • Organizer
      日本数学会2012年秋季総合分科会
    • Place of Presentation
      九州大学
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] B2型Macdonald多項式の予想

    • Author(s)
      白石潤一
    • Organizer
      日本数学会2013年年会
    • Place of Presentation
      京都大学
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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