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2009 Fiscal Year Annual Research Report

非線型楕円型方程式の大域理論の比較研究を通じた統一的理解の研究

Research Project

Project/Area Number 21244010
Research InstitutionWaseda University

Principal Investigator

小澤 徹  Waseda University, 理工学術院, 教授 (70204196)

Co-Investigator(Kenkyū-buntansha) 小池 茂昭  埼玉大学, 理工学研究科, 教授 (90205295)
田中 和永  早稲田大学, 理工学術院, 教授 (20188288)
Keywords非線型楕円型方程式 / 楕円型評価 / ソボレフの不等式 / ボワンカレの不等式 / コンパタト埋蔵
Research Abstract

本年度は、楕円型評価とソボレフ型埋蔵不等式について研究した。楕円型評価については、基礎となるユークリッド空間内の内部領域の伸張パラメタ(例えば原点を中心とする球の半径)に関する依存性を明らかにし、楕円型評価における伸張パラメタに関する〓状依存項と伸張パラメタに依存しない因子とを分離して記述する事に成功した。これにより、全ユークリッド空間における問題と内部領域における問題との関連が、伸張パラメタを通じて具体的に把握する事が可能となった。さらには非線型楕円型方程式系や非線型放物型方程式系への応用も見出し新たな知見を得た。
ソボレフ型埋蔵不等式については、動径対称な函数の満たすストラウスの不等式とニイの不等式を、一径数で補間することの出来る一般的な不等式を見出した。これにより、ストラウスの不等式とニイの不等式の統一的な理解が可能となった。さらには動径対称性の仮定が成立しない一般の場合への拡張も研究し、球面方向への若干の滑らかさを仮定すれば同様の不等式が成立する事を証明した。これは同時に全ユークリッド空間では破綻するソボレフのコンパクト埋蔵が、球面方向への滑らかさの仮定の下で回復する事実を主張するものであり、空間的に非均質性をもつ非線型楕円型方程式への応用が期待される。
また、有界領域におけるボワンカレの不等式を、全ユークリッド空間におけるスケール不変な不等式に書き換え、その本質が空間伸張に対応する運動群で特徽付けられる事も明らかにした。

  • Research Products

    (21 results)

All 2010 2009

All Journal Article (13 results) (of which Peer Reviewed: 13 results) Presentation (7 results) Book (1 results)

  • [Journal Article] Elliptic estimates independent of domain expansion2009

    • Author(s)
      Y.Cho
    • Journal Title

      Calculus of Variations and PDE 34

      Pages: 321-339

    • Peer Reviewed
  • [Journal Article] Inequalities associated with dilations2009

    • Author(s)
      T.Ozawa
    • Journal Title

      Commun.Contemporary Math. 11

      Pages: 265-277

    • Peer Reviewed
  • [Journal Article] Sobolev inequalities with symmetry2009

    • Author(s)
      Y.Cho
    • Journal Title

      Commun.Contemporary Math. 11

      Pages: 355-365

    • Peer Reviewed
  • [Journal Article] Remarks on the semirelativistic Hartree equations2009

    • Author(s)
      Y.Cho
    • Journal Title

      Discrete and Continuous Dynamical Systems A 23

      Pages: 1277-1294

    • Peer Reviewed
  • [Journal Article] Uniqueness of weak solutions to the Cauchy problem for the 3-Dtime-dependent Ginzburg-Landau model for superconductivity2009

    • Author(s)
      J.Fan
    • Journal Title

      Differential and Integral Equations 22

      Pages: 27-34

    • Peer Reviewed
  • [Journal Article] Remarks on analytic smoothing effect for the Schr\"odinger equation2009

    • Author(s)
      T.Ozawa
    • Journal Title

      Math.Z. 261

      Pages: 511-524

    • Peer Reviewed
  • [Journal Article] Regularity criteria for the 3D density-dependent Boussinesqequations2009

    • Author(s)
      J.Fan
    • Journal Title

      Nonlinearity 22

      Pages: 553-568

    • Peer Reviewed
  • [Journal Article] Regularity criteria for the magnetohydrodynamic equations withpartial viscous terms and the Leray-$\alpha$-MHD model2009

    • Author(s)
      J.Fan
    • Journal Title

      Kinetic and Related Models 2

      Pages: 293-305

    • Peer Reviewed
  • [Journal Article] Regularity criterion for a Bona-Colin-Lannes system2009

    • Author(s)
      J.Fan
    • Journal Title

      Nonlinear Analysis Series A : Theory, Methods applications 71

      Pages: 2634-2639

    • Peer Reviewed
  • [Journal Article] Regularity criteria for a simplified Ericksen-Leslie system modeling the flow of liquid crystals2009

    • Author(s)
      J.Fan
    • Journal Title

      Discrete and Continuous Dynamical Systems A 25

      Pages: 859-867

    • Peer Reviewed
  • [Journal Article] Logarithmically improved regularity criteria for Navier-Stokes and related equations2009

    • Author(s)
      J.Fan
    • Journal Title

      Math.Meth.Appl.Sci. 32

      Pages: 2309-2318

    • Peer Reviewed
  • [Journal Article] Weak Harnack inequality for fully nonlinear uniformly elliptic PDE with unbounded ingredients2009

    • Author(s)
      S.Koike
    • Journal Title

      Journal of Mathematical Society of Japan 61(3)

      Pages: 723-755

    • Peer Reviewed
  • [Journal Article] Sign-changing multi-bump solutions for nonlinear Schr\"odinger equations with steep potential wells2009

    • Author(s)
      K.Tanaka
    • Journal Title

      Transactions of the American Mathematical Society 361

      Pages: 6205-6253

    • Peer Reviewed
  • [Presentation] Analytic smoothing effect for nonlinear Schr\"odinger equations2010

    • Author(s)
      T.Ozawa
    • Organizer
      Mini-Workshop on Analysis and Differential Equations Institute of Mathematics
    • Place of Presentation
      Academia Sinica Taipei
    • Year and Date
      2010-03-20
  • [Presentation] Global Cauchy problem for Klein-Gordon equations with quadratic nonlinearities2010

    • Author(s)
      T.Ozawa
    • Organizer
      PDE seminar
    • Place of Presentation
      Taida Inst.for Math.Sci.
    • Year and Date
      2010-03-18
  • [Presentation] Analytic smoothing effect for the nonlinear Schr\"odinger equation2009

    • Author(s)
      T.Ozawa
    • Organizer
      Evolution Equations, Related Topics and Applications
    • Place of Presentation
      Helmholtz Zentrum Munchen
    • Year and Date
      2009-09-08
  • [Presentation] Global Cauchy Problem for 2D Klein-Gordon equations2009

    • Author(s)
      T.Ozawa
    • Organizer
      Nonlinear dispersive and geometric evolution problems : singularities and asymptotics
    • Place of Presentation
      University of British Columbia
    • Year and Date
      2009-08-20
  • [Presentation] Analyticity of solutions to nonlinear Schr\"odinger equations2009

    • Author(s)
      T.Ozawa
    • Organizer
      Nonlinear PDE in Zhang Jia Jie
    • Place of Presentation
      Zhang Jia Jie City
    • Year and Date
      2009-08-12
  • [Presentation] Sobolev inequalities with symmetry2009

    • Author(s)
      T.Ozawa
    • Organizer
      RIMS symposium "Geometric Aspect of Partial Differential Equations and Conservation Laws"
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2009-06-12
  • [Presentation] Endpoint Strichartz estimates for the Klein-Gordon equation in two space dimensions2009

    • Author(s)
      T.Ozawa
    • Organizer
      Nonlinear waves and dispersion
    • Place of Presentation
      Institut Henri poincare
    • Year and Date
      2009-04-29
  • [Book] Harmonic Analysis and Nonlinear Partial Differential Equations2009

    • Author(s)
      T.Ozawa
    • Total Pages
      173
    • Publisher
      Research Institute for Mathematical Sciences Kyoto University

URL: 

Published: 2011-06-16   Modified: 2016-04-21  

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