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Quantum isomonodromic deformation and Lax formulation

Research Project

Project/Area Number 26287018
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Basic analysis
Research InstitutionKobe University

Principal Investigator

Yamada Yasuhiko  神戸大学, 理学研究科, 教授 (00202383)

Co-Investigator(Kenkyū-buntansha) 太田 泰広  神戸大学, 理学研究科, 教授 (10213745)
野海 正俊  神戸大学, 理学研究科, 教授 (80164672)
Project Period (FY) 2014-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2015: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2014: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywordsモノドロミー保存変形 / ラックス形式 / パデ法 / 可積分系 / スペクトル曲線 / 量子化 / q超幾何積分 / 因子化されたラックス作用素 / ネクラソフ関数 / 自励化 / パンルヴェ系 / q-ガルニエ系 / ゲージ理論 / qガルニエ系 / 楕円ガルニエ系 / パデ補間 / 楕円差分 / 差分系 / 超離散 / 離散化 / 共形場理論 / 量子パンルヴェ方程式 / 力学系・可積分系
Outline of Final Research Achievements

In this research, we investigated the various Painleve type equations (or more generally iso-monodromic deformation equations) such as higher order or multivariable extensions. In particular, their geometric theory including the Lax formalism and the construction of the Lax equations based on the method of Pade approximation/interpolations has been developed, and the problems such as quantization, symmetry, special solutions, etc are considered. We also made a progress in the relation among the conformal field theory, gauge theory and iso-monodromic deformations.

Academic Significance and Societal Importance of the Research Achievements

モノドロミー保存変形は、19世紀のリーマンの研究を端緒とする重要な対象であり、そこに現れる関数は21世紀の特殊関数を与えるものと期待されてきた。実際、近年の数理物理を含めた研究は、その期待を裏付けるように飛躍的な進展を見せている。本研究は、そうしたモノドロミー保存変形理論について離散化、量子化なども含め、総合的・多角的な研究を目指したものである。得られた成果の中で最も重要なものは、パンルヴェ系(自由度2のモノドロミー保存変形)に関する、離散系連続系を含めた包括的理論の構築である。これは当該分野の研究の基礎を確立した成果として、高い評価を得ている。

Report

(7 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (53 results)

All 2020 2018 2017 2016 2015 2014 Other

All Int'l Joint Research (4 results) Journal Article (11 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 11 results,  Open Access: 3 results,  Acknowledgement Compliant: 3 results) Presentation (34 results) (of which Int'l Joint Research: 16 results,  Invited: 26 results) Remarks (3 results) Funded Workshop (1 results)

  • [Int'l Joint Research] University of Leeds(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] SISSA(イタリア)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Higher School of Economics(ロシア連邦)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] California Institute of Technology(米国)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Theory and applications of the elliptic Painleve equation2020

    • Author(s)
      Yasuhiko Yamada
    • Journal Title

      Partition functions and automorphic forms (V. P. Spiridonov V. Gritsenko, eds)

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Derivative Yajima-Oikawa System: Bright, Dark Soliton and Breather Solutions2018

    • Author(s)
      Junchao Chen, Bao‐Feng Feng, Ken‐ichi Maruno, Yasuhiro Ohta
    • Journal Title

      Studies in Applied Mathematics

      Volume: 141 Issue: 2 Pages: 145-185

    • DOI

      10.1111/sapm.12216

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Remarks on τ-functions for the difference Painleve; equations of type E82018

    • Author(s)
      Noumi, Masatoshi
    • Journal Title

      Adv. Stud. Pure Math.

      Volume: 76 Pages: 1-65

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Variations of q-Garnier system2018

    • Author(s)
      H.Nagao and Y.Yamada
    • Journal Title

      Journal of Physics A: Mathematical and Theoretical

      Volume: 51 Issue: 13 Pages: 135204-135204

    • DOI

      10.1088/1751-8121/aaae31

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An elliptic Garnier system from interpolation2017

    • Author(s)
      Y.Yamada
    • Journal Title

      SIGMA

      Volume: 13 Pages: 069-069

    • DOI

      10.3842/sigma.2017.069

    • NAID

      120006545129

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Study of q-Garnier system by Pade method2017

    • Author(s)
      Hidehito Nagao and Yasuhiko Yamada
    • Journal Title

      Funcialaj Ekvacioj

      Volume: 印刷中

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Geometric aspects of Painleve equations2016

    • Author(s)
      K.Kajiwara, M.Noumi, Y.Yamada
    • Journal Title

      J. Phys. A

      Volume: 印刷中

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] From polygons to ultra discrete Painleve equations2015

    • Author(s)
      C.Ormerod, Y.Yamada,
    • Journal Title

      SIGMA

      Volume: 11

    • DOI

      10.3842/sigma.2015.056

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Integrable semi-discretization of a multi-component short pulse equation2015

    • Author(s)
      Bao-Feng Feng, Ken-ichi Maruno, Yasuhiro Ohta
    • Journal Title

      Journal of Mathematical Physics

      Volume: 56 Issue: 4

    • DOI

      10.1063/1.4916895

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Pade Interpolation Method Applied to q-Painleve Equations2015

    • Author(s)
      H. Nagao
    • Journal Title

      Letters in Mathematical Physics

      Volume: 105 Issue: 4 Pages: 503-521

    • DOI

      10.1007/s11005-015-0749-y

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Simple expression for discrete Painleve equations2014

    • Author(s)
      Y. Yamada
    • Journal Title

      RIMS Kokyuroku Bessatsu

      Volume: B47 Pages: 087-095

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Presentation] 因子化されたラックス行列の対称性2020

    • Author(s)
      山田泰彦
    • Organizer
      京都大学, RIMS共同研究「可積分系数理の深化と展開」
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 超幾何と共形場再訪2020

    • Author(s)
      山田泰彦
    • Organizer
      超幾何学校2019
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Nekrasov functions and q-difference equations2020

    • Author(s)
      Yasuhiko Yamada
    • Organizer
      RikkyoMathPhys2020
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Comments on $q$-Garnier systems2018

    • Author(s)
      Y.Yamada
    • Organizer
      Asymptotic, Algebraic and Geometric Aspects of Integrable Systems
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On $q$-Garnier systems2018

    • Author(s)
      Y.Yamada
    • Organizer
      SIDE-13 (Fukuoka Japan)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Elliptic hypergeometric integrals and associated determinant formulas2018

    • Author(s)
      Masatoshi Noumi
    • Organizer
      SIDE-13 (Fukuoka Japan)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Theory and applications of the elliptic Painlev'e equation2018

    • Author(s)
      Y.Yamada
    • Organizer
      The international winter school "Partition Functions and Automorphic Forms" JINR
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A geometric formulation of the q-Garnier system2017

    • Author(s)
      Y.Yamada
    • Organizer
      Workshop "Geometry, Analysis and Mathematical Physics"
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] q-Garnier system and its autonomous limit2017

    • Author(s)
      Y.Yamada
    • Organizer
      Workshop "Elliptic Hypergeometric Functions in Combinatorics, Integrable Systems and Physics", ESI (Vienna, Austria)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Dual Lax pairs for discrete isomonodromy equations2017

    • Author(s)
      Y.Yamada
    • Organizer
      Workshop "Progress in Quantum Field Theory and String Theory II"
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] q-差分ガルニエ系について2017

    • Author(s)
      長尾秀人・山田泰彦
    • Organizer
      日本数学会無限可積分系セッション一般講
    • Related Report
      2017 Annual Research Report
  • [Presentation] q-差分ガルニエ系からq差分パンルヴェ系への簡約について2017

    • Author(s)
      長尾秀人・山田泰彦
    • Organizer
      日本数学会無限可積分系セッション一般講
    • Related Report
      2017 Annual Research Report
  • [Presentation] Geometric formulation of discrete Painlev'e equations2017

    • Author(s)
      Y.Yamada
    • Organizer
      Workshop "Geometric Correspondences of Gauge Theories"(SISSA)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] パンルヴェ方程式の幾何と対称性2017

    • Author(s)
      山田泰彦
    • Organizer
      Workshop “Exceptional Groups as Symmetries of Nature '17", KEK
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Geometric aspects of discrete Painlev'e equations2017

    • Author(s)
      Y.Yamada
    • Organizer
      Workshop“Exceptional and ubiquitous Painlev'e equations for Physics", LPT-ENS
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ゲージ理論とガルニエ系2017

    • Author(s)
      山田泰彦
    • Organizer
      駒場研究会「弦・場・素粒子」東京大学
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] A geometric formulation of the q-Garnier system2017

    • Author(s)
      Yasuhiko Yamada
    • Organizer
      Workshop "Geometry, Analysis and Mathematical Physics"
    • Place of Presentation
      京都大学理学研究科(京都府、京都市)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] q-Garnier system and its autonomous limit2017

    • Author(s)
      Yasuhiko Yamada
    • Organizer
      Workshop "Elliptic Hypergeometric Functions in Combinatorics, Integrable Systems and Physics",
    • Place of Presentation
      Wien University Ervin Schrodinger institute (オーストリア、ウィーン)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Dual Lax pairs for discrete isomondromy equations2017

    • Author(s)
      Yasuhiko Yamad
    • Organizer
      Workshop "Progress in Quantum Field Theory and String Theory II"
    • Place of Presentation
      Osaka City Univ (大阪府、大阪市)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] q差分ガルニエ系について2017

    • Author(s)
      長尾秀人、山田泰彦
    • Organizer
      日本数学会年会無限可積分系セッション一般講演
    • Place of Presentation
      首都大学東京(東京都、八王子市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] q差分ガルニエ系からq差分パンルヴェ系への簡約2017

    • Author(s)
      長尾秀人、山田泰彦
    • Organizer
      日本数学会年会無限可積分系セッション一般講演
    • Place of Presentation
      首都大学東京(東京都、八王子市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] パデ法とq差分ガルニエ系2016

    • Author(s)
      長尾秀人・山田泰彦
    • Organizer
      日本数学会無限可積分系セッション一般講
    • Place of Presentation
      筑波大学 ( 茨城県、つくば市 )
    • Year and Date
      2016-03-18
    • Related Report
      2015 Annual Research Report
  • [Presentation] q-ガルニエ系と超楕円QRT系2016

    • Author(s)
      山田泰彦
    • Organizer
      有理函数近似が繋ぐ可積分系・直交多項式・パンルヴェ方程式
    • Place of Presentation
      一橋大学 ( 東京都、国立市 )
    • Year and Date
      2016-01-30
    • Related Report
      2015 Annual Research Report
  • [Presentation] q-Garnier系とその自励化2016

    • Author(s)
      山田泰彦
    • Organizer
      超幾何研究会2016
    • Place of Presentation
      神戸大学 ( 兵庫県、神戸市 )
    • Year and Date
      2016-01-07
    • Related Report
      2015 Annual Research Report
  • [Presentation] q-ガルニエ系の種々のラックス形式について2016

    • Author(s)
      山田泰彦
    • Organizer
      RIMS研究集会「可積分系数理の現状と展望」
    • Place of Presentation
      京都大学益川ホール(京都府、京都市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] On q-Garnier systems2016

    • Author(s)
      Yasuhiko Yamada
    • Organizer
      Workshop "Conformal Field Theory, Isomonodromic tau-functions and Painleve equations"
    • Place of Presentation
      神戸大学(兵庫県、神戸市)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On the q-Garnier system2016

    • Author(s)
      Yasuhiko Yamada
    • Organizer
      Workshop on Integrable Systems
    • Place of Presentation
      University of Sydney(オーストラリア、シドニー)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] モノドロミー保存変形と代数曲線2015

    • Author(s)
      山田泰彦
    • Organizer
      琉球大数学科談話会
    • Place of Presentation
      琉球大学 ( 沖縄県、中頭郡西原町 )
    • Year and Date
      2015-11-05
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Geometric introduction to discrete Painleve equations2015

    • Author(s)
      Y.Yamada
    • Organizer
      Needs 2015
    • Place of Presentation
      Santa Margherita di Pula (Italy)
    • Year and Date
      2015-05-26
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Conserved curves for autonomous (ultra-)discrete Painleve equations2015

    • Author(s)
      Y.Yamada
    • Organizer
      The 9th IMACS Conference, Waves 2015
    • Place of Presentation
      Georgia, Athens (USA)
    • Year and Date
      2015-04-01
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] SW curve and its quantization2015

    • Author(s)
      Y.Yamada
    • Organizer
      ミニワークショップ「数学・物理における可積分性の諸相」
    • Place of Presentation
      大阪市立大学
    • Year and Date
      2015-03-09
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Quantum curves associated with quantum Painleve equations2015

    • Author(s)
      Y.Yamada
    • Organizer
      Curves, Moduli and Integrable Systems
    • Place of Presentation
      津田塾大学
    • Year and Date
      2015-02-18
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] モノドロミー保存変形の幾何学と量子化2014

    • Author(s)
      山田泰彦
    • Organizer
      大岡山談話会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2014-12-03
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Geometry of Painleve equations2014

    • Author(s)
      Y.Yamada
    • Organizer
      Integrable Systems in Newcastle
    • Place of Presentation
      Northumbria University, 英国
    • Year and Date
      2014-09-26
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Remarks] Quantum curves and q-deformed Painleve equations

    • URL

      https://arxiv.org/pdf/1710.11603.pdf

    • Related Report
      2017 Annual Research Report
  • [Remarks] Christopher Ormerod

    • Related Report
      2015 Annual Research Report
  • [Remarks] Home page of Yasuhiko YAMADA

    • URL

      http://www.math.kobe-u.ac.jp/HOME/yamaday/index.html

    • Related Report
      2014 Annual Research Report
  • [Funded Workshop] SIDE132018

    • Related Report
      2018 Annual Research Report

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Published: 2014-04-04   Modified: 2023-03-23  

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