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2016 Fiscal Year Annual Research Report

Mathematical Analysis of Free Boundary Problems in EMHD and Related Topics

Research Project

Project/Area Number 26400176
Research InstitutionKeio University

Principal Investigator

谷 温之  慶應義塾大学, 理工学部(矢上), 名誉教授 (90118969)

Co-Investigator(Kenkyū-buntansha) 井口 達雄  慶應義塾大学, 理工学部(矢上), 教授 (20294879)
野寺 隆  慶應義塾大学, 理工学部(矢上), 教授 (50156212)
Project Period (FY) 2014-04-01 – 2017-03-31
Keywordsfree boundary problem / Navier-Stokes equations / Hele-Shaw problem / MHD / primitive equations / film approximation / gas discharge / drift wave turbulence
Outline of Annual Research Achievements

研究実績の概要は以下の通りである. 1.(1)primitive方程式系の自由境界問題に関して, 大気/海洋2相系に対する時間局所一意強可解性(速報は公刊済, フルぺーパーは査読中); 海洋1相問題の時間大域解を小データ下で構成(投稿準備中). (2)斜面を下る非圧縮性粘性流体の薄膜近似(無次元化)基礎方程式系の解の薄膜パラメターに関する一様評価の導出(公刊済); 同基礎方程式系の薄膜近似としてのBurgers方程式, 4階消散項, 3階分散項を伴うBurgers方程式の数学的正当化(公刊済). (3)Hele-Shaw問題に関して, 表面張力効果なし2相問題の時間局所古典解存在を放物型正則化問題経由で証明(公刊済), 表面張力効果なし1相, 表面張力効果あり2相問題の時間局所古典解の存在(投稿準備中); 境界上の濡れ効果, 粘性鉛直応力効果を考慮した1相, 2相問題の時間局所古典解の存在証明(草稿準備中). 2.トカマク内の抵抗性ドリフト波乱流の(2粒子)モデル方程式(Hasegawa-Wakatani方程式) に対する初期-境界値問題のステパノフ概周期解の一意存在(公刊済); ガス放電現象に対するDegon-Lucquin-Desreux-Morrowモデル方程式の時間局所一意可解性(投稿中). 3.圧縮性 Navier-Stokes方程式に対する古典的MHD 2相自由境界問題の時間局所古典解の一意存在(投稿準備中); 圧縮性粘性流体方程式の弱非線形近似として定式化される非線型音響学における基礎方程式(modified Kuznetsov方程式)が定常状態近傍で時間大域一意解を持つこととその近似の数学的正当性(草稿準備中). 4.オーダーパラメター非保存型Penrose-Fife方程式に対するフラックス境界条件下での時間大域強解の一意存在(投稿準備中).

  • Research Products

    (17 results)

All 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 9 results)

  • [Int'l Joint Research] Lavrentyev Institute of Hydrodynamics/Sobolev Institute of Mathematics(ロシア連邦)

    • Country Name
      RUSSIA FEDERATION
    • Counterpart Institution
      Lavrentyev Institute of Hydrodynamics/Sobolev Institute of Mathematics
  • [Journal Article] Initial boundary value problem for model equations of resistive drift wave turbulence with Stepanov-almost-periodic initial data2016

    • Author(s)
      S. Kondo and A. Tani
    • Journal Title

      Ann. Sc. Norm. Super. Pisa Cl. Sci.

      Volume: 16 Pages: 291-333

    • Peer Reviewed
  • [Journal Article] Classical solvability of the two-phase radial viscous fingering problem in a Hele-Shaw cell2016

    • Author(s)
      A. Tani and H. Tani
    • Journal Title

      In: Mathematical Fluid Dynamics, Present and Future, Springer Proc. Math. Stat.

      Volume: 183 Pages: 317-348

    • Peer Reviewed
  • [Journal Article] Mathematical analysis of synchronization from the perspective of network science2016

    • Author(s)
      H. Honda and A. Tani
    • Journal Title

      Mathematics for Industry

      Volume: 26 Pages: 219-228

    • Peer Reviewed
  • [Journal Article] Uniform estimates for the flow of a viscous incompressible fluid down an inclined plane in the thin film regime2016

    • Author(s)
      H. Ueno, A. Shiraishi, and T. Iguchi
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 436 Pages: 248-287

    • Peer Reviewed
  • [Journal Article] A mathematical justification of a thin film approximation for the flow down an inclined plane2016

    • Author(s)
      H. Ueno and T. Iguchi
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 444 Pages: 804-824

    • Peer Reviewed
  • [Journal Article] GKB-GCV Method for Solving Generic Tikhonov Regularization Problems2016

    • Author(s)
      D. Togashi and T. Nodera
    • Journal Title

      GSTF JMSR

      Volume: 3 Pages: 53-58

    • Peer Reviewed
  • [Journal Article] Inexact shift-invert Arnoldi method for evolution equations2016

    • Author(s)
      Y. Hashimoto and T. Nodera
    • Journal Title

      ANZIAM J.

      Volume: 57 Pages: E1-E27

    • Peer Reviewed
  • [Presentation] Mathematical Analysis in Nonlinear Acoustics2017

    • Author(s)
      A. Tani
    • Organizer
      8th International conference on Mathematical Modeling
    • Place of Presentation
      Yakutsk(Russia)
    • Year and Date
      2017-07-05
    • Int'l Joint Research / Invited
  • [Presentation] Nonlinear Acoustics II2017

    • Author(s)
      A. Tani
    • Organizer
      現象解析特別セミナー第11回
    • Place of Presentation
      茨城大学(茨城県・水戸市)
    • Year and Date
      2017-03-17
    • Invited
  • [Presentation] Nonlinear Acoustics I2017

    • Author(s)
      A. Tani
    • Organizer
      現象解析特別セミナー第11回
    • Place of Presentation
      茨城大学(茨城県・水戸市)
    • Year and Date
      2017-03-15
    • Invited
  • [Presentation] On the Khokhlov―Zabolotskaya--Kuznetsov (KZK) Equation2017

    • Author(s)
      A. Tani
    • Organizer
      Second Workshop on Mathematical Analysis on Nonlinear Phenomena
    • Place of Presentation
      慶應義塾大学(神奈川県・横浜市)
    • Year and Date
      2017-01-21
    • Invited
  • [Presentation] Initial value problem to a shallow water model with floating structures2017

    • Author(s)
      T. Iguchi
    • Organizer
      Second Workshop on Mathematical Analysis on Nonlinear Phenomena
    • Place of Presentation
      慶應義塾大学(神奈川県・横浜市)
    • Year and Date
      2017-01-21
    • Invited
  • [Presentation] A mathematical justification of the thin film approximation for the flow down an inclined plane2016

    • Author(s)
      T. Iguchi
    • Organizer
      大阪大学微分方程式セミナー
    • Place of Presentation
      大阪大学(大阪府・豊中市)
    • Year and Date
      2016-11-18
    • Invited
  • [Presentation] Mechanochemical Models for Biological Pattern Formation I, II2016

    • Author(s)
      A. Tani
    • Organizer
      現象解析特別セミナー第10回
    • Place of Presentation
      宮崎大学(宮崎県・宮崎市)
    • Year and Date
      2016-09-19 – 2016-09-20
    • Invited
  • [Presentation] A mathematical justification of the thin film approximation for the flow down an inclined plane2016

    • Author(s)
      T. Iguchi
    • Organizer
      Workshop on Mathematical Sciences
    • Place of Presentation
      Wayamba(Sri Lanka)
    • Year and Date
      2016-08-21
    • Int'l Joint Research / Invited
  • [Presentation] Variational methods and the Isobe-Kakinuma model for water waves2016

    • Author(s)
      T. Iguchi
    • Organizer
      Wayamba International Conference 2016
    • Place of Presentation
      Wayamba(Sri Lanka)
    • Year and Date
      2016-08-20
    • Int'l Joint Research / Invited

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Published: 2018-01-16   Modified: 2022-02-16  

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