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Research on determinants and Pfaffians appearing in Enumerative Combinatorics

Research Project

Project/Area Number 19540030
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Algebra
Research InstitutionTottori University

Principal Investigator

ISHIKAWA Masao  Tottori University, 教育センター, 准教授 (40243373)

Co-Investigator(Renkei-kenkyūsha) OKADA Soichi  名古屋大学, 大学院・多元数理科学研究科, 教授 (20224016)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2007: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords代数的組み合せ論 / 対称関数 / 数理物理モデル / q-series / 行列式 / パフィアン / 平面分割 / 交代符号行列 / 数理物理 / 可解格子モデル / Yang-Baxter方程式 / 代数的組合せ論 / 対称多項式 / 表現論 / 対称群 / 超幾何級数
Research Abstract

この研究の目的は数え上げ組合せ論に現れる行列式やパフィアンとそのq-analogue について、超幾何級数や直交多項式等の関係からのアプローチであった。これらの行列式やパフィアンは d-complete posets の hook formula や対称性を考慮した平面分割の数え上げ問題、Stanley の FPSAC における open problem など、いろいろな所に現れ、その考察において、色々な発展を得て論文にした。1つは、ordered partitions の数え上げに現れる行列の評価である。もう1つは、StanleyのFPSAC におけるopen problem に現れる重み関数を一般の分割にわたって和を取ると、Askey-Wilson多項式の特別な場合であるAl-Salam-Chihara 多項式と深い関係があることがわかった。また、カタラン数を成分とするハンケル行列式のlattice pathを使った証明は有名であるが、その拡張として成分にlittleq-Jacobi多項式に持つハンケル行列式も、同様の結果を持ち、同様にlattice path を使って説明できることを示せた。これらの結果は、それぞれの論文にまとめてある。また、内外の研究集会で研究成果発表を行った。この他にも、最近では、平面分割の数え上げ問題と数理物理学の関係の研究が盛んである。特にq-KZ方程式に関する Razumov-Stroganov 予想に関連してq-KZ方程式と様々な対称性を考慮した平面分割の数え上げ問題とFPLの関係が研究されている。この方面でも、TSSCPP の数え上げ問題と constatnt term identityなどの研究成果があった。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (31 results)

All 2009 2008 2007 Other

All Journal Article (12 results) (of which Peer Reviewed: 12 results) Presentation (16 results) Remarks (3 results)

  • [Journal Article] A q-analogue of Catalan Hankel determinants2009

    • Author(s)
      Masao Ishikawa, Hiroyuki Tagawa and Jiang Zeng
    • Journal Title

      RIMS Kokyuroku Bessatsu B11

      Pages: 19-42

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] The Andrews-Stanley Partition Function and Al-Salam-Chihara Polynomials2009

    • Author(s)
      Masao Ishikawa and Jiang Zeng
    • Journal Title

      Descrete Math 309

      Pages: 151-175

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Minor summation formula and a proof of Stanley's open problem2008

    • Author(s)
      Masao Ishikawa
    • Journal Title

      Ramanujan J. 16

      Pages: 211-234

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Statistics on Ordered Partitions of Sets and q-Stirling Numbers SIAM J2008

    • Author(s)
      Masao Ishikawa, Anisse Kasraoui and Jiang Zeng
    • Journal Title

      Discrete Math 22

      Pages: 1105-1137

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Euler-Mahonian Statistics on Ordered Partitions and Steingrimsson's conjecture2008

    • Author(s)
      Masao Ishikawa, Anisse Kasraoui and Jiang Zeng
    • Journal Title

      RIMS Kokyuroku Bessatsu B8

      Pages: 99-114

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Euler-Mahonian Statistics on Ordered Partitions and Steingrimsson's cojecture2008

    • Author(s)
      M. Ishikawa
    • Journal Title

      RIMS Kokyuroku Bessatsu B8

      Pages: 99-114

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Statistics on Ordered Partitions of Sets and q-Stirling Numbers2008

    • Author(s)
      M. Ishikawa
    • Journal Title

      SIAM J. Discrete Math. 22

      Pages: 1105-1137

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Minor summation formula and a proof of Stanley's open problem2008

    • Author(s)
      M. Ishikawa
    • Journal Title

      Ramanujan J. 16

      Pages: 211-234

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Minor summation formula and a proof of Stanley's open problem

    • Author(s)
      Masao Ishikawa
    • Journal Title

      Ramanujan J. (印刷中)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Andrews-Stanley Partition Function and Al-Salam-Chihara Polynomials

    • Author(s)
      Masao Ishikawa and Jiang Zeng
    • Journal Title

      Discrete Math. (印刷中)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] EULER-MAHONIAN STATISTICS ON ORDERED PARTITIONS AND STEIN GRIMSSON'S CONJECTURE-A SURVEY

    • Author(s)
      Masao Ishikawa, Anisse Kasrao ui and Jiang Zeng
    • Journal Title

      RIMS Kokyuroku Bessatsu (印刷中)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Euler-Mahonian Statistics On Ordered Partitions

    • Author(s)
      Masao Ishikawa, Anisse Kasrao ui and Jiang Zeng
    • Journal Title

      SIAM J. on Discrete Math. 出版予定(アクセプト済)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] An Identity for Compound Determinant and its Application2008

    • Author(s)
      石川雅雄
    • Organizer
      KAIST談話会
    • Place of Presentation
      Korea Advanced Institute of Science and Technology
    • Year and Date
      2008-02-22
    • Related Report
      2008 Final Research Report
  • [Presentation] An Identity for Compound Determinant and its Application,2008

    • Author(s)
      石川雅雄
    • Place of Presentation
      Korea Advanced Institute of Science and Technology
    • Year and Date
      2008-02-22
    • Related Report
      2007 Annual Research Report
  • [Presentation] Enumeration problems of plane partitions and determinant generating functions2008

    • Author(s)
      石川雅雄
    • Organizer
      組合せ論的表現論の拡がり
    • Place of Presentation
      京都大学数理解析研究所
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 平面分割の数え上げ問題と行列式・パフィアン2008

    • Author(s)
      石川雅雄
    • Organizer
      combin.jp SUMMER SCHOOL 2008
    • Place of Presentation
      Culture Resort Festone(沖縄)
    • Related Report
      2008 Final Research Report
  • [Presentation] Enumeration problems of plane partitions and Pfaffian (determinant) xpressions2008

    • Author(s)
      石川雅雄
    • Organizer
      Combinatorics and Representation Theory
    • Place of Presentation
      名古屋大学・多元数理科学科
    • Related Report
      2008 Final Research Report
  • [Presentation] Littlewood's (Cauchy's) formulae of Schur functions and constant term expressions for the refined enumeration problems of TSSCPPs2008

    • Author(s)
      石川雅雄
    • Organizer
      Combinatorics and Statistical Physics
    • Place of Presentation
      Erwin Schrodinger Institute(ウィーン)
    • Related Report
      2008 Final Research Report
  • [Presentation] Littlewood's (Cauchy's) formulae of Schur functions and constant term expressions for the refined enumeration problems of TSSCPPs2008

    • Author(s)
      M. Ishikawa
    • Organizer
      Combinatorics and Statistical Physics
    • Place of Presentation
      Erwin Schrodinger Institute (ウィーン)
    • Related Report
      2008 Annual Research Report
  • [Presentation] Enumeration problems of plane partitions and Pfaffian (determinant) expresslons2008

    • Author(s)
      M. Ishikawa
    • Organizer
      Combinatorics and Representation Theory
    • Place of Presentation
      名古屋大学・多元数理科学科
    • Related Report
      2008 Annual Research Report
  • [Presentation] パフィアン2008

    • Author(s)
      M. Ishikawa
    • Organizer
      combin. jp SUMMER SCHOOL 2008
    • Place of Presentation
      Culture Resort Festone (沖縄)
    • Related Report
      2008 Annual Research Report
  • [Presentation] Hankel determinants of Catalan, Motzkin and Schroder numbers and its q-analogues2007

    • Author(s)
      石川雅雄
    • Organizer
      組合せ論的表現論の拡がり
    • Year and Date
      2007-10-23
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] Catalan数, Motzkin数, Schroder数のHankel行列式と, そのq-analogue2007

    • Author(s)
      石川雅雄
    • Organizer
      組合せ論サマースクール2007
    • Place of Presentation
      カルチャーリゾートフェストーネ
    • Year and Date
      2007-09-03
    • Related Report
      2008 Final Research Report
  • [Presentation] Catalan 数, Motzkin 数, Schroder 数の Hankel 行列式と, そのq-analogue2007

    • Author(s)
      石川雅雄
    • Organizer
      組合せ論サマースクール2007
    • Place of Presentation
      カルチャーリゾートフェストーネ
    • Year and Date
      2007-09-03
    • Related Report
      2007 Annual Research Report
  • [Presentation] Refined Enumerations of Totally Symmetric Self-Complementary Plane Partitions and Lattice Path Combinatorics2007

    • Author(s)
      石川雅雄
    • Organizer
      6th International Conference on Lattice Path Combinatorics and Applications
    • Place of Presentation
      アメリカ合衆国ジョンソン市・東テネシー州立大学
    • Year and Date
      2007-07-13
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] Schur Function Identities and Hook Length Posets2007

    • Author(s)
      石川雅雄 & 田川裕之
    • Organizer
      The 19th International Conference on Formal Power Series and Algebraic Combinatorics
    • Place of Presentation
      中華人民共和国天津市南開大学
    • Year and Date
      2007-06-04
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] Refined Enumerations of Totally Symmetric Self-Complementary Plane Partiti ons and Constant Term Identities2007

    • Author(s)
      石川雅雄
    • Organizer
      The 19th International Conference on Formal Power Series and Algebraic Combinatorics
    • Place of Presentation
      中華人民共和国天津市南開大学
    • Year and Date
      2007-06-02
    • Related Report
      2008 Final Research Report
  • [Presentation] Refined Enumerations of Totally Symmetric Self-Complementary Plane Partitions and Constant Term Identities2007

    • Author(s)
      石川雅雄
    • Organizer
      The 19th International Conference on Formal Power Series and Algebraic Combinatorics
    • Place of Presentation
      中華人民共和国天津市南開大学
    • Year and Date
      2007-06-02
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://www.uec.tottori-u.ac.jp/~mi/

    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://www.uec.tottori-u.ac.jp/~mi/

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.uec.tottori-u.ac.jp/~mi/

    • Related Report
      2007 Annual Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

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