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2014 Fiscal Year Annual Research Report

幾何結晶上のトロピカルR写像の構成と結晶基底への応用

Research Project

Project/Area Number 22540031
Research InstitutionSophia University

Principal Investigator

中島 俊樹  上智大学, 理工学部, 教授 (60243193)

Co-Investigator(Kenkyū-buntansha) 五味 靖  上智大学, 理工学部, 准教授 (50276515)
都築 正男  上智大学, 理工学部, 准教授 (80296946)
Project Period (FY) 2010-04-01 – 2015-03-31
Keywords代数学 / 量子群 / 結晶基底 / 幾何結晶
Outline of Annual Research Achievements

古典型A,B,C,D型の場合にWeyl群の元によってきまるある幾何結晶上のdecoration functionを単項表示という結晶基底の実現の方法を用いて具体的に記述した。そこでは、具体的な一般化された小行列式の精密な計算を大量に実行した。また、decoration function の記述と多面体表示の記述の類似性から両者を結びつけることにA型とD型の場合に成功した。特に、一般化された小行列式の精密な計算によりクラスター代数との関係にも道を開いた。

Research Progress Status

26年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

26年度が最終年度であるため、記入しない。

  • Research Products

    (5 results)

All 2014

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

  • [Journal Article] Decorated Geometric Crystals and Polyhedral Realizations of type D_n2014

    • Author(s)
      Nakashima, Toshiki
    • Journal Title

      Contemporary Mathematics

      Volume: 623 Pages: 227-242

    • DOI

      10.1090/conm/623/12466

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Decorations on geometric crystals and monomial realizations of crystal bases for classical groups2014

    • Author(s)
      Nakashima, Toshiki
    • Journal Title

      Journal of Algebra

      Volume: 399 Pages: 712-769

    • DOI

      10.1016/j.jalgebra.2013.09.052

    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Crystal Bases and Upper Cluster Algebras on Double Bruhat Cells2014

    • Author(s)
      Nakashima, Toshiki
    • Organizer
      Conference on Cluster Algebras and Representation Theory, CMC Thematic Program on Cluster Algebras in Mathematics and Physics
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      2014-11-04 – 2014-11-07
    • Invited
  • [Presentation] Upper Cluster Algebras on Double Bruhat Cells and Monomial Realizations of Crystal Bases2014

    • Author(s)
      Nakashima, Toshiki
    • Organizer
      ICM satellite Conference on Representation Theory and Related Topics
    • Place of Presentation
      Daegu, Korea
    • Year and Date
      2014-08-05 – 2014-08-10
    • Invited
  • [Presentation] Cluster Variables on Double Bruhat cells and Monomial Realizations of Crystal Bases2014

    • Author(s)
      Nakashima, Toshiki
    • Organizer
      New Directions in Lie Theory, Combinatorial Representation Theory
    • Place of Presentation
      Montreal, Canada
    • Year and Date
      2014-04-19 – 2014-04-27
    • Invited

URL: 

Published: 2016-06-01  

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