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Mathematical and Numerical analysis for nonlinear wave equations

Research Project

Project/Area Number 16H07288
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Basic analysis
Research InstitutionMeiji University (2017-2018)
Waseda University (2016)

Principal Investigator

Sasaki Takiko  明治大学, 理工学部, 助教 (30780150)

Project Period (FY) 2016-08-26 – 2018-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords波動方程式 / 爆発現象 / 数値シミュレーション / 非線形波動方程式 / 解析学 / 爆発問題 / 数値解析 / 爆発境界 / 非線形偏微分方程式 / 応用数学 / 爆発曲線 / 誤差解析 / 特異性
Outline of Final Research Achievements

(1) Numerical Analysis : We considered some numerical schemes for the blow-up curve of some nonlinear wave equations. By using them, we numerically confirmed the regularities and singularities of the blow-up curve for some nonlinear wave equations. (2) Mathematical Analysis : We showed that the blow-up curve for a system of the nonlinear wave equations becomes smooth if the initial value is large and smooth enough. Moreover, we showed that the blow-up curve converges to the blow-up time of an ordinary differential equation if the solution of the wave equation converges to the solution of the ordinary differential equation.
.

Academic Significance and Societal Importance of the Research Achievements

本研究では,非線形波動方程式の爆発境界の解析という問題に対して,関数解析的手法と数値解析的手法の両方の側面からアプローチすることに意義があると言える.放物型方程式ではこのような研究は珍しくないが,双曲型方程式の場合,数値解析自体があまり進んでいないため,このようなアプローチはほとんど存在しなかった.単純な波動方程式でもその爆発境界は様々なものが存在し得る.また,離散問題の解析自体がもとの方程式の解析に役立つことも期待される.このアプローチにより,双曲型方程式においても数値解析を取り入れた研究が活性化し,爆発問題のみならず双曲型方程式の数学解析全体に大きく貢献することが期待される.

Report

(3 results)
  • 2018 Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (32 results)

All 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (3 results) (of which Open Access: 2 results,  Peer Reviewed: 2 results) Presentation (28 results) (of which Int'l Joint Research: 8 results,  Invited: 11 results)

  • [Int'l Joint Research] パリ第13大学(フランス)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] 1 次元非線形波動方程式の爆発曲線に関する 数値・数学解析2018

    • Author(s)
      佐々木多希子,石渡哲哉
    • Journal Title

      数理解析研究所講究録

      Volume: 2094 Pages: 26-35

    • Related Report
      2017 Annual Research Report
    • Open Access
  • [Journal Article] Regularity and singularity of the blow-up curve for a wave equation with a derivative nonlinearity2018

    • Author(s)
      Takiko Sasaki
    • Journal Title

      Advances in Differential Equations

      Volume: 23 Pages: 373-408

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical validation of blow-up solutions of ordinary differential equations2017

    • Author(s)
      A. Takayasu, K. Matsue, Kaname, T. Sasaki, K. Tanaka, M.Mizuguchi and S. Oishi
    • Journal Title

      J. Comput. Appl. Math.

      Volume: 314 Pages: 10-29

    • DOI

      10.1016/j.cam.2016.10.013

    • NAID

      120007135196

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] The blow-up curve of solutions for semilinear wave equations with Dirichlet boundary conditions in one space dimension2018

    • Author(s)
      Takiko Sasaki
    • Organizer
      Workshop on Nonlinear Partial Differential Equations Japan-China Joint Project for Young Mathematicians 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 1次元非線形波動方程式の爆発曲線に関する数値・数学解析2018

    • Author(s)
      佐々木多希子
    • Organizer
      東工大数理解析セミナー
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] The blow-up curve of solutions for semilinear wave equations with Dirichlet boundary conditions in one space dimension2018

    • Author(s)
      Takiko Sasaki
    • Organizer
      The 11th Mathematical Society of Japan Seasonal Institute ‘The Role of Metrics in the Theory of Partial Differential Equations’
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The blow-up curve of solutions for semilinear wave equations with Dirichlet boundary conditions in one space dimension2018

    • Author(s)
      Takiko Sasaki
    • Organizer
      The Seventh China-Japan-Korea Joint Conference on Numerical Mathematics
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The blow-up curve for semilinear wave equations with small spatial velocity2018

    • Author(s)
      Takiko Sasaki
    • Organizer
      International Conference Czech-Japanese Seminar in Applied Mathematics 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical and mathematical analysis for the blow-up curve of solutions to 1-dimensional nonlinear wave equations2018

    • Author(s)
      Takiko Sasaki
    • Organizer
      East Asia section of SIAM 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Error analysis of splitting methods for semilinear evolution equations2018

    • Author(s)
      Takiko Sasaki
    • Organizer
      Pan-American Workshop 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The blow-up curve for semilinear wave equations with small spatial velocity2018

    • Author(s)
      佐々木多希子
    • Organizer
      日本数学会 2018年度秋季総合分科会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Numerical and mathematical analysis for the blow-up curve of solutions to 1-dimensional nonlinear wave equations2018

    • Author(s)
      佐々木多希子
    • Organizer
      若手のための偏微分方程式と数学解析
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] ディリクレ境界条件を課した非線形波動方程式の爆発曲線について2018

    • Author(s)
      佐々木多希子
    • Organizer
      軽井沢グラフと解析研究集会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 1 次元非線形波動方程式の爆発曲線に関する数値・数学解析2018

    • Author(s)
      佐々木多希子
    • Organizer
      量子渦と非線形波動
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 1次元非線形波動方程式の爆発曲線に関する数値・数学解析2018

    • Author(s)
      佐々木多希子
    • Organizer
      日本数学会 2018年度年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 1次元非線形波動方程式の爆発曲線に関する数値・数学解析2018

    • Author(s)
      佐々木多希子
    • Organizer
      数学と現象 in 清里
    • Related Report
      2017 Annual Research Report
  • [Presentation] 非線形項に未知関数の導関数を含む波動方程式の爆発曲線について2017

    • Author(s)
      佐々木多希子
    • Organizer
      弘前非線形方程式研究会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 1 次元非線形波動方程式の爆発曲線に関する数値・数学解析2017

    • Author(s)
      佐々木多希子
    • Organizer
      RIMS 共同研究(公開型) 数値解析学の最前線
    • Related Report
      2017 Annual Research Report
  • [Presentation] The blow-up curve of the radially symmetric solutions to nonlinear wave equations2017

    • Author(s)
      佐々木多希子
    • Organizer
      Seminar on Nonlinear Wave Equations in Hakodate
    • Related Report
      2017 Annual Research Report
  • [Presentation] The blow-up curve of solutions for a system of nonlinear wave equations2017

    • Author(s)
      佐々木多希子
    • Organizer
      神楽坂解析セミナー
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Regularity and singularity of the blow-up curve for a nonlinear wave equation with a derivative nonlinearity2017

    • Author(s)
      佐々木多希子
    • Organizer
      明治非線型数理セミナー
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Regularity and singularity of the blow-up curve for a nonlinear wave equation, Equadiff 20172017

    • Author(s)
      Takiko Sasaki
    • Organizer
      Equadiff 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Finite Difference Approximation for Nonlinear Schrodinger Equations with Application to Blow-up Computation2017

    • Author(s)
      Takiko Sasaki
    • Organizer
      The Third International Conference on Engineering and Computational Mathematics
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 1次元非線形波動方程式の爆発曲線に関する数値・数学解析2017

    • Author(s)
      佐々木多希子
    • Organizer
      応用数学合同研究集会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 非線形波動方程式系の爆発曲線について2017

    • Author(s)
      佐々木多希子
    • Organizer
      日本数学会 2017年度秋季総合分科会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 非線形波動方程式の球対称解の爆発曲線について2017

    • Author(s)
      佐々木多希子
    • Organizer
      界面現象の数理・モデリング研究合宿2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] Regularity and singularity of the blow-up curve for a nonlinear wave equa- tion with a derivative nonlinearity2016

    • Author(s)
      佐々木多希子
    • Organizer
      2016年度応用数学合同研究集会
    • Place of Presentation
      龍谷大学
    • Year and Date
      2016-12-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] 非線形偏微分方程式の差分解の爆発について2016

    • Author(s)
      佐々木多希子
    • Organizer
      大阪市立大学 院生談話会
    • Place of Presentation
      大阪市立大学
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Regularity and singularity of the blow-up curve for a nonlinear wave equation with a derivative nonlinearity2016

    • Author(s)
      佐々木多希子
    • Organizer
      応用数学フレッシュマンセミナー2016
    • Place of Presentation
      京都大学
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] 非線形項に未知関数の導関数を含む波動方程式の爆発曲線について2016

    • Author(s)
      佐々木多希子
    • Organizer
      大阪大学 微分方程式セミナー
    • Place of Presentation
      大阪大学
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] 偏微分方程式の差分解の爆発について2016

    • Author(s)
      佐々木多希子
    • Organizer
      研究集会「数学と諸科学の融合2016」
    • Place of Presentation
      早稲田大学
    • Related Report
      2016 Annual Research Report

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Published: 2016-09-02   Modified: 2020-03-30  

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