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Study of special functions which are captured by parametric deformations of representation-theoretical structures

Research Project

Project/Area Number 25400044
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Algebra
Research InstitutionUniversity of the Ryukyus

Principal Investigator

Kimoto Kazufumi  琉球大学, 理学部, 教授 (10372806)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords非可換調和振動子 / スペクトルゼータ関数 / アルファ行列式 / リース行列式 / 帯球関数 / ラテン方陣 / 表現論 / 整数論 / 組合せ論 / パラメタ変形 / α行列式 / 特殊関数
Outline of Final Research Achievements

We have studied a parametric deformation of the determinant and the quantum harmonic oscillator, which are equipped with nice invariance and symmetries.
As for the parametric deformation of the determinant, we have utilized relative invariants defined by such a deformation to introduce and study a generalization of the group determinants, to give a formula for the value of zonal spherical functions and irreducible characters for symmetric groups, and to prove the Alon-Tarsi conjecture on Latin squares in special cases.
As for the parametric deformation of the quantum harmonic oscillator, we have studied the functions which arise from a certain special value of the associated spectral zeta function which satisfies transformation rules similar to those for modular forms.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (6 results)

All 2016 2015 2013 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (3 results) (of which Invited: 1 results)

  • [Journal Article] Wreath determinants for group-subgroup pairs2015

    • Author(s)
      Kei Hamamoto, Kazufumi Kimoto, Kazutoshi Tachibana, Masato Wakayama
    • Journal Title

      Journal of Combinatorial Theory, Series A

      Volume: 133 Pages: 76-96

    • DOI

      10.1016/j.jcta.2015.02.002

    • Related Report
      2015 Annual Research Report 2014 Research-status Report
    • Peer Reviewed
  • [Journal Article] Spectrum of non-commutative harmonic oscillators and residual modular forms2013

    • Author(s)
      K. Kimoto and M. Wakayama
    • Journal Title

      Noncommutative geometry and physics

      Volume: 3

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Height of a Class in the Cohomology Ring of Polygon Spaces2013

    • Author(s)
      Y. Kamiyama and K. Kimoto
    • Journal Title

      Int. J. Math. Math. Sci.

      Volume: 2013 Pages: 1-7

    • DOI

      10.1155/2013/305926

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] Alpha-determinants and the Alon-Tarsi conjecture2016

    • Author(s)
      Kazufumi Kimoto
    • Organizer
      Tutorials and Workshop on New Developments in Representation Theory
    • Place of Presentation
      Institute for Mathematical Sciences, National University of Singapore
    • Year and Date
      2016-03-09
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] 群・部分群対に対する群行列式の類似2015

    • Author(s)
      木本一史・若山正人
    • Organizer
      日本数学会2015年度秋期総合分科会
    • Place of Presentation
      京都産業大学
    • Year and Date
      2015-09-15
    • Related Report
      2015 Annual Research Report
  • [Presentation] 行列式の2パラメタ変形と長方形指標公式

    • Author(s)
      木本一史
    • Organizer
      日本数学会2014年度年会
    • Place of Presentation
      学習院大学(東京都)
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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