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Construction of digital-analogue-hybrid mathematical model by ultradiscretization method

Research Project

Project/Area Number 24654028
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field General mathematics (including Probability theory/Statistical mathematics)
Research InstitutionWaseda University

Principal Investigator

TAKAHASHI Daisuke  早稲田大学, 理工学術院, 教授 (50188025)

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)
Keywords可積分系 / セルオートマトン / ソリトン / 超離散化 / 保存量 / 非線形波動 / 差分方程式 / 束 / 確率モデル / デジタル / パターン / 超離散化手法(アメリカ)
Outline of Final Research Achievements

Our purpose is to propose a common analyzing method among nonlinear systems with different levels of discretization. We obtained the following concrete results. (1) We expressed the time-evolution equations of elementary cellular automata using lattice operations. We proposed the exact general solutions solving their initial value problem. (2) We solved exactly the initial value problems for the particle systems expressed by cellular automata with multi-neighbors. Moreover, we analyzed the cellular automata with higher-order conserved quantity reducing them to those with first-order. (3) We introduced the stochastic parameters to the systems obtained in (2) preserving their conserved quantity and derived the exact theoretical expression for their fundamental diagram.

Report

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

    (22 results)

All 2014 2013 2012

All Journal Article (5 results) (of which Peer Reviewed: 4 results) Presentation (17 results) (of which Invited: 7 results)

  • [Journal Article] On solutions to evolution equations defined by lattice operators2014

    • Author(s)
      T.Ikegami, D.Takahashi, J.Matsukidaira
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics

      Volume: 31 Issue: 1 Pages: 211-230

    • DOI

      10.1007/s13160-013-0134-0

    • NAID

      210000165311

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Max-min-plus expressions for one-dimensional particle cellular automata obtained from a fundamental diagram2013

    • Author(s)
      T.Okumura, J.Matsukidaira, D.Takahashi
    • Journal Title

      Journal of Physics A: Mathematical and Theoretical

      Volume: 46 Issue: 29 Pages: 295101-295101

    • DOI

      10.1088/1751-8113/46/29/295101

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] 確率変数を含む粒子セルオートマトンについて2013

    • Author(s)
      桑原英樹,池上貴俊,高橋大輔
    • Journal Title

      日本応用数理学会論文誌

      Volume: 22 Pages: 1-13

    • Related Report
      2013 Research-status Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] 共生する連続と離散2013

    • Author(s)
      高橋大輔
    • Journal Title

      応用数理

      Volume: 23 Pages: 35-38

    • NAID

      110009597002

    • Related Report
      2012 Research-status Report
  • [Journal Article] 箱玉系とその周辺2012

    • Author(s)
      高橋大輔,松木平淳太
    • Journal Title

      応用数理

      Volume: 22 Pages: 17-23

    • NAID

      110009579038

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] 可解なセルオートマトンの探索2014

    • Author(s)
      高橋大輔
    • Organizer
      「セルオートマトンが拓く現象数理学」(明治大学現象数理学研究拠点主催研究会)
    • Place of Presentation
      明治大学
    • Year and Date
      2014-12-04 – 2014-12-05
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 高次保存量を持つセルオートマトンについて2014

    • Author(s)
      高橋大輔,松木平淳太
    • Organizer
      平成26 年度九州大学応用力学研究所共同利用研究集会「非線形波動研究の現状-課題と展望を探る-」
    • Place of Presentation
      九州大学応用力学研究所
    • Year and Date
      2014-10-30 – 2014-11-01
    • Related Report
      2014 Annual Research Report
  • [Presentation] 高次保存量をもつCAのMax-Min-Plus解析について2014

    • Author(s)
      松木平淳太,高橋大輔
    • Organizer
      日本応用数理学会2014年度年会
    • Place of Presentation
      政策研究大学院大学
    • Year and Date
      2014-09-03 – 2014-09-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] 高次保存量をもつCAの確率化について2014

    • Author(s)
      延東和茂,高橋大輔,松木平淳太
    • Organizer
      日本応用数理学会2014年度年会
    • Place of Presentation
      政策研究大学院大学
    • Year and Date
      2014-09-03 – 2014-09-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] On exact solutions to lattice equations2014

    • Author(s)
      D.Takahashi
    • Organizer
      SIAM Conference on Nonlinear Waves and Coherent Structures
    • Place of Presentation
      University of Cambridge
    • Year and Date
      2014-08-11 – 2014-08-14
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Max-min-plus expressions for one-dimensional cellular automata with second order conserved quantity2014

    • Author(s)
      J.Matsukidaira, D.Takahashi
    • Organizer
      20th International Workshop on Cellular Automata and Discrete Complex Systems
    • Place of Presentation
      イーグレひめじ(姫路)
    • Year and Date
      2014-07-07 – 2014-07-09
    • Related Report
      2014 Annual Research Report
  • [Presentation] パターン生成CAの方程式による解析2014

    • Author(s)
      新田真奈美,高橋大輔
    • Organizer
      第10回 日本応用数理学会 研究部会連合発表会
    • Place of Presentation
      京都大学吉田キャンパス
    • Related Report
      2013 Research-status Report
  • [Presentation] ビットの解析学2013

    • Author(s)
      高橋大輔
    • Organizer
      2013年度 首都大学東京 数電機シンポジウム
    • Place of Presentation
      首都大学東京南大沢キャンパス
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] パターン生成CAの方程式と解について2013

    • Author(s)
      新田真奈美,高橋大輔
    • Organizer
      RIAM研究集会「非線形波動研究の拡がり」
    • Place of Presentation
      九州大学筑紫地区筑紫ホール
    • Related Report
      2013 Research-status Report
  • [Presentation] 4つの確率変数を含む統合確率粒子系2013

    • Author(s)
      木村俊之,高橋大輔
    • Organizer
      RIAM研究集会「非線形波動研究の拡がり」
    • Place of Presentation
      九州大学筑紫地区筑紫ホール
    • Related Report
      2013 Research-status Report
  • [Presentation] Initial value problem of lattice equations2013

    • Author(s)
      D.Takahashi
    • Organizer
      国際会議「China-Japan Joint Workshop on Integrable Systems 2013」
    • Place of Presentation
      京都大学
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] あるパターン形成系の構築について2012

    • Author(s)
      中谷友洋,高橋大輔
    • Organizer
      RIAM研究集会「非線形波動研究の最前線-構造と現象の多様性-」
    • Place of Presentation
      九州大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 粒子セルオートマトンのEuler-Lagrange変換について2012

    • Author(s)
      山本匠,高橋大輔
    • Organizer
      RIAM研究集会「非線形波動研究の最前線-構造と現象の多様性-」
    • Place of Presentation
      九州大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 粒子CAの拡張について2012

    • Author(s)
      池上貴俊,桑原英樹,高橋大輔
    • Organizer
      日本応用数理学会2012年度年会
    • Place of Presentation
      稚内全日空ホテル
    • Related Report
      2012 Research-status Report
  • [Presentation] 共生する連続と離散2012

    • Author(s)
      高橋大輔
    • Organizer
      日本応用数理学会2012年度年会
    • Place of Presentation
      稚内全日空ホテル
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] 非自励粒子セルオートマトン2012

    • Author(s)
      高橋大輔
    • Organizer
      RIMS 研究集会「非線形離散可積分系の拡がり」
    • Place of Presentation
      京都大学
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Lattice Theory on Elementary Cellular Automata2012

    • Author(s)
      D.Takahashi
    • Organizer
      Nonlinear Evolution Equations and Dynamical Systems (NEEDS) 2012
    • Place of Presentation
      ギリシャ
    • Related Report
      2012 Research-status Report
    • Invited

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

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