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NISHITANI TATSUO  西谷 達雄

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NISHITANI Tatsuo  西谷 達雄

西谷 達雄

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Researcher Number 80127117
Other IDs
Affiliation (Current) 2025: 大阪大学, その他部局等, 名誉教授
Affiliation (based on the past Project Information) *help 2016 – 2023: 大阪大学, その他部局等, 名誉教授
2021: 大阪大学, 理学研究科, 名誉教授
2011 – 2015: 大阪大学, 理学(系)研究科(研究院), 教授
2012: 大阪大学, 理学研究科, 教授
2010: 大阪大学, 理学研究科, 教授 … More
2007 – 2010: Osaka University, 大学院・理学研究科, 教授
2007 – 2009: 大阪大学, 理学部, 教授
2005 – 2007: 大阪大学, 理学研究科, 教授
1996 – 2005: Osaka University, Graduate School of Science, Professor, 大学院・理学研究科, 教授
2002: 大阪大学, 大学院・理学研究科, 助教授
2001: 大阪大学, 理学研究科, 教授
1999: 大阪大学, 理学研究科, 教授
1994 – 1995: 大阪大学, 理学部, 教授
1990 – 1993: 大阪大学, 教養部, 教授
1989: 大阪大学, 教養部, 助教授
1987: 大阪大学, 教養部, 助教授 Less
Review Section/Research Field
Principal Investigator
解析学 / Basic analysis / Mathematical analysis / Basic Section 12020:Mathematical analysis-related / Basic analysis
Except Principal Investigator
解析学 / Geometry / Basic analysis / 代数学・幾何学 / Global analysis / Basic analysis / General mathematics (including Probability theory/Statistical mathematics)
Keywords
Principal Investigator
初期値問題 / 適切性 / 強双曲系 / ハミルトン写像 / 包合的 / 零陪特性帯 / 局所化系 / 伝播錐 / well posedness / reduced dimension … More / 一様対角化 / 重み関数 / 対称系 / strong hyperbolicity / 局所化 / 横断的 / Gevrey クラス / 基本分解 / Hamilton map / Cauchy problem / hyperbolic operator / 陪特性帯 / Gevrey空間 / Gevrey適切性 / Fourier積分作用素 / 対称化 / 非退化特性点 / 双曲型作用素 / 3重特性点 / 対角対称化行列 / 実効双曲型特性点 / Bezout 形式 / Tricomi 作用素 / 実効的双曲型特性点 / 対称化行列 / Weyl-Hormander calculus / Admissible metric / Bezout 行列 / 3次実効的双曲型特性点 / Ivrii 予想 / 一様対角化可能 / symplectic多様体 / Gevreyクラス / 特異点集合 / シンプレクティック / 超局所伝播錐 / 横断的狭義双曲系 / elementary decomposition / initial value problem / Gevrey space / null bicharacteristic / double characteristic / ワイルーヘルマンダークラス / 擬微分作用素 / 先験的評価 / 還元次数 / 対称化可能 / Ivrii分解 / ジュブレイ空間 / 2次特性点 / symmetrizability / noncommutative determinant / pseudosymmetric / hyperbolicity / Newton多角形 / Gevrey class / 高階双曲系 / 準対称化 / 対称化可能性 / 還元次元 / 対称可能系 / 非可換行列式 / 準対称系 / 双曲性 / blow up / a priori estimate / weight function / boundary matrix / symmetric system / ブロウアップ / アプリオリ評価 / 境界行列 / localization / hyperbolic perturbation / non degenerate / involutive / symmetrizable system / 非退化特異点 / 双曲摂動 / 対称化可能系 / Bronshteinの定理 / Gevrey強双曲性 / 法束上で狭義双曲型 / Gevrey強双曲性指数 / シンプレクティック特性多様体 / 包合的特性多様体 / 横断的強双曲系 / Gevrey強双曲型 / 余接空間 / Gevrey 強双曲性指数 / 実効果的双曲型 / 適切生 / 実効的双曲型 / スペクトル構造 / 二次特性多様体 / 初期値問題の適切性 / 非実効的双曲型作用素 / Hamilton flow / effectively hyperbolic / well-posedness / bicharacteristic / レゾナンス / 双曲型不動点 / シュレディンガー方程式 / 正跡 / 複素相関数 / 非実効果的双曲型 / ハミルトン流 / 強双曲型作用素 / 複素数値相関数 / 零特性帯 / lifespan / 平滑化作用 / 非線形波動 / 分散型方程式 / 超局所解析 / 線形性空間 / 時間関数 / 双曲錐 / 局所化作用素 / 双曲系 … More
Except Principal Investigator
擬微分作用素 / 境界値問題 / シュレデインガー方程式 / 双曲型方程式 / シュレディンガー方程式 / 熱方程式 / Schrodinger equation / Smoothing effect / 散乱理論 / 分散型方程式 / ゼータ関数 / 波動方程式 / 量子化ハミルトニアン / boundary value problem / Asymptotics of solutions / Modified KdV equation / 半空間におけるKdV方程式 / Landau-Ginzburg型方程式 / 解の漸近的振る舞い / collapse / シュレヂンガー方程式 / 平滑化効果 / smoothing effect / 初期値問題 / 正則性 / microlocal analysis / 超局所解析 / ポテンシャル / 発展方程式 / inverse problems / 極 / 逆問題 / 臨界冪 / 臨界冪非線形項 / 散乱問題 / 関数方程式 / 特異性 / 古典力学 / 散乱核 / 有理型 / 散乱 / 摂動展開 / ファインマン積分 / ウィーナー空間における停留位相の方法 / 確率振動積分 / 安定性 / ケーラー多様体 / stability / モジュライ空間 / 変分問題 / 弾性曲線 / 定数磁場 / スペクトル解析 / 相対論 / 磁場 / シュレディンガ-方程式 / 複素多様体 / D Modules / 超局所オイラー類 / 指数定理 / D加群 / Schredinger type equation / Nonlinear dissipative equations / Airy type equations / Nonlinear damped wave equation / Modified wave operator / Nonlinear Schredinger equation / 圧縮性粘性流体 / Burgers方程式 / 半空間 / 消散型波動方程式 / 強非線形性 / 大域的存在 / 漸近評価 / バーガーズ方程式 / 分数冪熱方程式 / 消散形波動方程式 / 非線形消散型方程式 / シュレデインガー型方程式 / エアリー型方程式 / 非線形消散型波動方程式 / 修正波動作用素 / 修正KdV方程式 / 非線形シュレデインガー方程式 / surface / curve / Evolution equation / Variational problem / 解の滑らかさ / 運動方程式 / 平均曲率一定超曲面 / 極小部分多様体 / 一般次元 / 部分多様体 / 境界 / 非連結 / 極小曲面 / 曲面 / 曲線 / time decay / regularity of solution / global solution of nonlinear problem / mocrolocal smoothing effect / Dispersion equation / 超局所化 / Differential equation / Micro local analysis / Dispersion / 非線形問題の大域解 / 時間的減衰 / 解の正則姓 / 非線型問題の大域解 / 超平滑化効果 / Coronical transform / Lp-Analysis / Cauchy Problem / Schoedinger equation / Global boundedness / Fourier Integral Operator / Oscillatory Integral / 除去可能特異点 / 平滑化作用 / 正準変換 / Lp-解析 / 大域的有界性 / フーリエ積分作用素 / 振動積分 / KdV equation on a halfline / Landau-Ginzburg type equation / KdV-Burgers equation / Scattering problem / Schredinger equation / 非線形分散型方程式 / シュ・レデインガー方程式 / KdV-Burgers方程式 / Modified KdV方程式 / pole / meromorphic / zeta function / chaos / Ruelle operator / clssical dynamics / 波動 / 有利型 / カオス / Ruelle作用素 / Fokker-Pharck equation / Langevin equation / localization / quantization / blow-up / free energy / chams taxis / 双曲型方程式系 / 圧縮性粘性流体方程式 / 共形場理論 / 数理ファイナンス / 弾性波動 / 脳磁図分析 / Fokker-Planck方程式 / Langevin方程式 / 局所化 / 量子化 / 爆発 / 自由エネルギー / 走化性方程式 / Cauchy problem / Gevrey class / regularity / dispersion equation / 退任放物型方程式 / Schrodinger方程式 / Gevrey関数 / 分散方程式 / Schrodiuger方程式 / singularity / pseudo-differential / communication / Fourier Transformation / image processing / time-frequency analysis / wavelet / 完全正規直交系 / L^2(R^n)-空間 / 多重ウェーブレット / ガボール変換 / フレーム / 多重解像度解析 / 通信理論 / フーリエ変換 / 画像処理 / 時間周波数解析 / ウェーブレット / Potential / quantized Hamiltonian / spectral inveriance / compact operators / Wigner distribution / symbol / L^2空間 / レゾルベント / フーリエ解析 / スペクトル不変性 / コンパクト作用素 / ウィグナー・ディストリビューション / 表象 / Dirac operator / scattering / hypoellicptic / evolution equations / differential equations / 可積分系 / schroedinger方程式 / 周期解 / 力学系 / Dirac作用素 / 準楕円性 / 微分方程式 / Einstein metric / constant mean curvature / 時空間図形 / アインシュタイン計量 / 安定解 / 平均曲率一定曲面 / nonlinear phenomenon / well posedness / elastic equation / wave of earthquake / scattering theory / partial differential equations / シュレ-ディンガー作用素 / 非線型現象 / 適切性 / 弾性方程式 / 地震波 / 偏微分方程式 / geometric invariant theory / 二木不変量 / 一般化されたカラビ予想 / ヤンミルズ場 / モンジュ=アンペール方程式 / ファノ多様体 / アインシュタイン=ケーラー計量 / 曲率演算 / 曲率構造 / 曲率 / 特異性の伝播 / Jordan型の擬標準形 / 擬Jordan型の標準形 / 南雲型のCauchy-Kowalevskayaの定理 / 超弱双曲系 / 強双曲系 / p-parabolic system / 系の行列式理論 / 擬Jordan標準形 / 南雲型のCauchy=Kowalevskayaの定理 / 消散項 / 非線形Schrodinger / 非線形Klein-Gordon / 非線形問題 / 固有振動数 / クラインーゴルドン方程式 / 非線形Schredinger方程式 / 非線形Klein-Gordon方程式 / 修正散乱作用素 / 散乱作用素 / 共鳴現象 / 漸近的振る舞い / クライン-ゴルドン方程式 / 絶対収束軸 / 量子力学 / 散乱行列 / ゼーター関数 / 凸な物体 / ヴァン・ヴレェック-パウリの公式 / モデュライ / Gromov-Witten不変量 / 擬正則曲線 / モ-ス理論 / ヴァンヴレェック-パウリの公式 / 特異摂動 / ソリトン / 非線型発展方程式 / 定スカラー曲率 / Torelli型定理 / 極限擬ノルム構造 / 擬ノルム構造 / Einstein-Kahler計量 / 複素構造 / コンパクト化 / 多重表象 / 自己共役 / ハミルトニアン / パッフ系 / モノドロミー群 / 分岐被覆 / 基本群 / 自己同型群 / 結合構造 / 射影空間 / ネット / 非相対論 / ディラック方程式 / ヤン・ミルズ場のモジュライ / 不安定な解 / 非線型熱方程式 / 変分原理 / ヤン・ミルズ方程式 / アインシュタイン方程式 / 本質的自己共役性 / 代数関数体 / 被覆(分岐被覆) Less
  • Research Projects

    (45 results)
  • Research Products

    (148 results)
  • Co-Researchers

    (85 People)
  •  Cauchy problem for differential operators with triple effectively hyperbolic characteristicsPrincipal Investigator

    • Principal Investigator
      西谷 達雄
    • Project Period (FY)
      2020 – 2024
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 12020:Mathematical analysis-related
    • Research Institution
      Osaka University
  •  Transversally strictly hyperbolic systemsPrincipal Investigator

    • Principal Investigator
      Nishitani Tatsuo
    • Project Period (FY)
      2017 – 2021
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Mathematical analysis
    • Research Institution
      Osaka University
  •  Gevrey strong hyperbolicity and the structure of Hamilton map and flowPrincipal Investigator

    • Principal Investigator
      Nishitani Tatsuo
    • Project Period (FY)
      2014 – 2017
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Mathematical analysis
    • Research Institution
      Osaka University
  •  Hyperbolic operators with double characteristics, Hamilton map and Hamilton flowPrincipal Investigator

    • Principal Investigator
      NISHITANI Tatsuo
    • Project Period (FY)
      2011 – 2013
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Osaka University
  •  Microlocal analysis and global analysis of dispersive equations

    • Principal Investigator
      DOI Shin-ichi
    • Project Period (FY)
      2009 – 2012
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Osaka University
  •  Phase Space Analysis of Partial Differential EquationsPrincipal Investigator

    • Principal Investigator
      NISHITANI Tatsuo
    • Project Period (FY)
      2007 – 2010
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Basic analysis
    • Research Institution
      Osaka University
  •  On study of evolution equations with hyperbolic properties

    • Principal Investigator
      HAYASHI Nakao
    • Project Period (FY)
      2007 – 2010
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Basic analysis
    • Research Institution
      Osaka University
  •  Study on systems of partial differential equations applying the abstract algebra

    • Principal Investigator
      MATSUMOTO Waichiro
    • Project Period (FY)
      2007 – 2010
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Ryukoku University
  •  Boundary value problems and Index Theorem for D Modules

    • Principal Investigator
      UCHIDA Motoo
    • Project Period (FY)
      2004 – 2007
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Osaka University
  •  On study of partial differential equations describing natural phenomena

    • Principal Investigator
      HAYASHI Nakao
    • Project Period (FY)
      2003 – 2005
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Basic analysis
    • Research Institution
      Osaka University
  •  Studies on a new class of hyperbolic systemsPrincipal Investigator

    • Principal Investigator
      NISHITANI Tatsuo
    • Project Period (FY)
      2003 – 2006
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Basic analysis
    • Research Institution
      Osaka University
  •  Variational problem and evolution equation of curves and surfaces

    • Principal Investigator
      KOISO Norihito
    • Project Period (FY)
      2002 – 2005
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Geometry
    • Research Institution
      Osaka University
  •  STRACTURE OF PARTIAL DIFFERENTIAL EQUATIONS BY SMOOTHING EFFECT

    • Principal Investigator
      KAJITANI Kunihiko
    • Project Period (FY)
      2001 – 2003
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Basic analysis
    • Research Institution
      UNIVERSITY OF TSUKUBA
  •  Study on the relationships between the classical mechanics and the chaotic properties of wave motions

    • Principal Investigator
      IKAWA Mitsuru
    • Project Period (FY)
      2000 – 2002
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Global analysis
    • Research Institution
      Kyoto University
  •  ON SOLUTIONS OF NONLINEAR DISPERSIVE EQUATIONS

    • Principal Investigator
      HAYASHI Nakao
    • Project Period (FY)
      2000 – 2002
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Global analysis
    • Research Institution
      Osaka University
      Tokyo University of Science
  •  The relation between the quantitative properties of the solutions of partial differential equations and the geometrical structures of their characteristics

    • Principal Investigator
      SUGIMOTO Mitsuru
    • Project Period (FY)
      2000 – 2003
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Osaka University
  •  Smoothing effect of Partial differential equations

    • Principal Investigator
      KUNIKIKO Kajitani
    • Project Period (FY)
      1999 – 2000
    • Research Category
      Grant-in-Aid for Scientific Research (B).
    • Research Field
      Basic analysis
    • Research Institution
      Tsukuba University
  •  Theory of hyperloobic systemsPrincipal Investigator

    • Principal Investigator
      NISHITANI Tatsuo
    • Project Period (FY)
      1999 – 2001
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Basic analysis
    • Research Institution
      Osaka University
  •  Mathematical Analysis for Partial Differential Equations Arising in Mathematical Sciences

    • Principal Investigator
      SUJUKI Takoshi
    • Project Period (FY)
      1999 – 2000
    • Research Category
      Grant-in-Aid for Scientific Research (B).
    • Research Field
      Global analysis
    • Research Institution
      Osaka University
  •  いくつかの凸な物体による散乱

    • Principal Investigator
      IKAWA Mitsuru
    • Project Period (FY)
      1998 – 1999
    • Research Category
      Grant-in-Aid for Exploratory Research
    • Research Field
      Global analysis
    • Research Institution
      Kyoto University
      Osaka University
  •  Global analysis of curves and surfaces

    • Principal Investigator
      KOISO Norihito
    • Project Period (FY)
      1997 – 1999
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Geometry
    • Research Institution
      Osaka University
  •  Synthetic research on differential equations

    • Principal Investigator
      IKAWA Mitsuru
    • Project Period (FY)
      1997 – 1998
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      解析学
    • Research Institution
      Osaka University, Graduate School of Sciences
  •  Study on symmetric positive systemsPrincipal Investigator

    • Principal Investigator
      NISHITANI Tatsuo
    • Project Period (FY)
      1997 – 1998
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      解析学
    • Research Institution
      Osaka University
  •  Pseudodifferential Operators and Schrodinger Equations

    • Principal Investigator
      NAGASE Michihiro
    • Project Period (FY)
      1997 – 1998
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      解析学
    • Research Institution
      OSAKA UNIVERSITY
  •  Theory of multi-wavelet and its application

    • Principal Investigator
      NAGASE Michihiro
    • Project Period (FY)
      1997 – 1999
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      解析学
    • Research Institution
      Osaka University
  •  ファインマン積分とその摂動展開から導出される幾何学的不変量の研究

    • Principal Investigator
      榎 一郎
    • Project Period (FY)
      1996
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Osaka University
  •  確率振動積分の漸近評価

    • Principal Investigator
      眞鍋 昭治郎
    • Project Period (FY)
      1996
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      General mathematics (including Probability theory/Statistical mathematics)
    • Research Institution
      Osaka University
  •  ウィーナー空間上の確率解析

    • Principal Investigator
      真鍋 昭次郎
    • Project Period (FY)
      1995
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      General mathematics (including Probability theory/Statistical mathematics)
    • Research Institution
      Osaka University
  •  ファインマン積分とその摂動展開から導出される幾何学的不変量の研究

    • Principal Investigator
      榎 一郎
    • Project Period (FY)
      1995
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Osaka University
  •  Symmetric systems and strongly hyperbolic systemsPrincipal Investigator

    • Principal Investigator
      NISHITANI Tatsuo
    • Project Period (FY)
      1995 – 1996
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      解析学
    • Research Institution
      Osaka University
  •  ケーラー多様体上のソリトン

    • Principal Investigator
      榎 一郎
    • Project Period (FY)
      1994
    • Research Category
      Grant-in-Aid for Scientific Research on Priority Areas
    • Research Institution
      Osaka University
  •  弾性波動方程式の研究

    • Principal Investigator
      小磯 憲史
    • Project Period (FY)
      1994
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Osaka University
  •  双曲型偏微分方程式の初期値問題Principal Investigator

    • Principal Investigator
      西谷 達雄
    • Project Period (FY)
      1994
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Osaka University
  •  Scattering theory of partial differential equations and its applications

    • Principal Investigator
      IKAWA Mitsuru
    • Project Period (FY)
      1994 – 1995
    • Research Category
      Grant-in-Aid for Co-operative Research (A)
    • Research Field
      解析学
    • Research Institution
      Osaka University
  •  物理数学の方程式と擬微分作用素論

    • Principal Investigator
      長瀬 道弘
    • Project Period (FY)
      1993
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Osaka University
  •  幾何構造の退化とモジュライのコンパクト化

    • Principal Investigator
      満渕 俊樹
    • Project Period (FY)
      1993
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Osaka University
  •  弾性曲線の研究(熱方程式による分析)

    • Principal Investigator
      小磯 憲史
    • Project Period (FY)
      1992
    • Research Institution
      Osaka University
  •  代数的組合せ論の研究と有限射影平面研究への応用

    • Principal Investigator
      平峰 豊
    • Project Period (FY)
      1992
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Osaka University
  •  複素多様体の基本群と分岐被覆

    • Principal Investigator
      難波 誠
    • Project Period (FY)
      1992
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Osaka University
  •  多重特性点を有す双曲型作用素及び系の研究Principal Investigator

    • Principal Investigator
      西谷 達雄
    • Project Period (FY)
      1991
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Osaka University
  •  アインシュタイン計量の熱方程式による研究

    • Principal Investigator
      KOISO Norihito
    • Project Period (FY)
      1990
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Osaka University
  •  擬微分作用素論とハミルトン作用素

    • Principal Investigator
      長瀬 道弘
    • Project Period (FY)
      1990
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Osaka University
  •  複素多様体の分岐被覆

    • Principal Investigator
      NAMBA Makoto
    • Project Period (FY)
      1989
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Osaka University
  •  擬微分作用素論とシュレディンガ-方程式

    • Principal Investigator
      NAGASE Michihiro
    • Project Period (FY)
      1989
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      Osaka University
  •  リーマン空間の曲率構造と曲率演算について

    • Principal Investigator
      小島 政利, 満渕 俊樹
    • Project Period (FY)
      1988
    • Research Category
      Grant-in-Aid for General Scientific Research (C)
    • Research Field
      代数学・幾何学
    • Research Institution
      Tottori University
      Osaka University

All 2024 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2004 2003 Other

All Journal Article Presentation Book

  • [Book] Cauchy problem for differential operators with double characteristics2017

    • Author(s)
      T.Nishitani
    • Total Pages
      211
    • Publisher
      Springer
    • ISBN
      9783319676111
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Book] Cauchy problem for differential operators with double characteristics2017

    • Author(s)
      T.Nishitani
    • Total Pages
      211
    • Publisher
      Springer
    • ISBN
      9783319676111
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Book] 線形双曲型偏微分方程式2015

    • Author(s)
      西谷達雄
    • Total Pages
      286
    • Publisher
      朝倉書店
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Book] Hyperbolic Systems with Analytic Coefficients2014

    • Author(s)
      T.Nishitani
    • Publisher
      Springer
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Book] Hyperbolic systems with analytic coefficients2014

    • Author(s)
      T.Nishitani
    • Total Pages
      237
    • Publisher
      Springer
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Book] Cauchy Problem for Noneffectively Hyperbolic Operators2013

    • Author(s)
      Tatsuo Nishitani
    • Total Pages
      170
    • Publisher
      Mathematical Society of Japan
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Book] Cauchy problem for Noneffectively Hyperbolic Operators2013

    • Author(s)
      T.Nishitani
    • Publisher
      Mathematical Society of Japan
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Book] Hyperbolic Problems and Related Topics2003

    • Author(s)
      T.Nishitani, F.Colombini
    • Total Pages
      436
    • Publisher
      International Press
    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] A more direct way to the Cauchy problem for effectively hyperbolic operators2024

    • Author(s)
      Tatsuo Nishitani
    • Journal Title

      J.Pseudo-Differ.Oper.Appl.

      Volume: 15 Issue: 2

    • DOI

      10.1007/s11868-024-00592-4

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-20K03679
  • [Journal Article] The Cauchy problem for operators with triple effectively hyperbolic characteristics: Ivrii’s conjecture2022

    • Author(s)
      Nishitani Tatsuo
    • Journal Title

      Journal d'Analyse Mathematique

      Volume: 未定 Issue: 1 Pages: 167-237

    • DOI

      10.1007/s11854-022-0249-9

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20K03679
  • [Journal Article] Diagonal symmetrizers for hyperbolic operators with triple characteristics2021

    • Author(s)
      Nishitani Tatsuo
    • Journal Title

      Mathematische Annalen

      Volume: - Issue: 1-2 Pages: 529-569

    • DOI

      10.1007/s00208-021-02153-2

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17K05324, KAKENHI-PROJECT-20K03679
  • [Journal Article] On the Cauchy problem for D_t^2-D_x(b(t)a(x))D_x2020

    • Author(s)
      Colombini Ferruccio, Nishitani Tatsuo
    • Journal Title

      Journal of Hyperbolic Differential Equations

      Volume: 17 Pages: 75-122

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] On the Cauchy problem for D_t^2-D_x(b(t)a(x))D_x2020

    • Author(s)
      Colombini Ferruccio, Nishitani Tatsuo
    • Journal Title

      J. Hyperbolic Differ. Equ.

      Volume: 17

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] Notes on symmetrization by Bezoutian2020

    • Author(s)
      Nishitani Tatsuo
    • Journal Title

      Bollettino dell'Unione Matematica Italiana

      Volume: 13 Pages: 417-428

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] Cauchy problem for hyperbolic operators with triple effective characteristics on the initial plane2020

    • Author(s)
      Nishitani Tatsuo, Petkov Vesselin
    • Journal Title

      Osaka Journal of Mathematics

      Volume: 57 Pages: 597-615

    • NAID

      120006871534

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] Notes on symmetrization by Bezoutian2020

    • Author(s)
      Nishitani Tatsuo
    • Journal Title

      Bollentino dell'Unione Matematica Italiana

      Volume: 13 Pages: 417-428

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20K03679
  • [Journal Article] Cauchy problem for hyperbolic operators with triple effective characteristics on the initial plane2020

    • Author(s)
      Nishitani Tatsuo, V.Petkov
    • Journal Title

      Osaka Journal of Mathematics

      Volume: 57 Pages: 597-615

    • NAID

      120006871534

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03679
  • [Journal Article] Transversally strictly hyperbolic systems2020

    • Author(s)
      Nishitani Tatsuo
    • Journal Title

      Kyoto Journal of Mathematics

      Volume: 60 Pages: 1399-1418

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] Transversally strictly hyperbolic systems2020

    • Author(s)
      Nishitani Tatsuo
    • Journal Title

      Kyoto J. Math.

      Volume: 60

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] Cauchy problem for effectively hyperbolic operators with triple characteristics2019

    • Author(s)
      Nishitani Tatsuo, Petkov Vesselin
    • Journal Title

      J. Math. Pures Appl.

      Volume: 123 Pages: 201-228

    • DOI

      10.1016/j.matpur.2018.06.006

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] Weakly hyperbolic systems by symmetrization2019

    • Author(s)
      Colombini Ferruccio, Nishitani Tatsuo, Rauch Jeffrey
    • Journal Title

      Ann. Sci. Norm. Super. Pisa

      Volume: XIX Pages: 217-251

    • DOI

      10.2422/2036-2145.201610_006

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] Note on strongly hyperbolic systems with involute characteristics2018

    • Author(s)
      G.Metivier and T.Nishitani
    • Journal Title

      Kyoto J.Math.

      Volume: 印刷中

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Journal Article] Note on strongly hyperbolic systems with involute characteristics2018

    • Author(s)
      G.Metivier and T.Nishitani
    • Journal Title

      Kyoto J. Math.

      Volume: 印刷中

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] Note on strongly hyperbolic systems with involutive characteristics2018

    • Author(s)
      Metivier Guy、Nishitani Tatsuo
    • Journal Title

      Kyoto Journal of Mathematics

      Volume: 58 Issue: 3 Pages: 569-582

    • DOI

      10.1215/21562261-2017-0029

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] On the Cauchy problem for differential operators with double characteristics, A transition from non-effective to effective characteristics2018

    • Author(s)
      T.Nishitani
    • Journal Title

      Publ. RIMS Koyto Uiniv.

      Volume: 54 Pages: 317-349

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Journal Article] On the Cauchy Problem for Differential Operators with Double Characteristics, A Transition from Non-effective to Effective Characteristics2018

    • Author(s)
      Nishitani Tatsuo
    • Journal Title

      Publications of the Research Institute for Mathematical Sciences

      Volume: 54 Issue: 2 Pages: 317-349

    • DOI

      10.4171/prims/54-2-3

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] The Cauchy problem for differential operators with double characteristics2018

    • Author(s)
      Nishitani Tatsuo
    • Journal Title

      Sugaku Expositions

      Volume: 31 Issue: 2 Pages: 169-197

    • DOI

      10.1090/suga/433

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] On the Cauchy problem for differential operators with double characteristics, A transition from non-effective to effective characteristics2018

    • Author(s)
      T.Nishitani
    • Journal Title

      Publ. RIMS Kyoto Univ.

      Volume: 54 Pages: 317-349

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] Note on strongly hyperbolic systems with involute characteristics2017

    • Author(s)
      G.Metivier and T.Nishitani
    • Journal Title

      Kyoto J. Math.

      Volume: 印刷中

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Journal Article] On the Gevrey strong hyperbolicity2017

    • Author(s)
      T.Nishitani
    • Journal Title

      Osaka J. Math.

      Volume: 54 Pages: 383-408

    • NAID

      120006312693

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Journal Article] On the Gevrey strong hyperbolicity2017

    • Author(s)
      T.Nishitani
    • Journal Title

      Osaka J. Math.

      Volume: 54 Pages: 383-408

    • NAID

      120006312693

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Journal Article] A simple proof of the existence of tangent bicharacteristics for noneffectively hyperbolic operators2015

    • Author(s)
      T.Nishitani
    • Journal Title

      Kyoto Journal of Mathematics

      Volume: 55 Pages: 281-297

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Journal Article] Counterexamples to $ C^{\infty}$ well posedness for some hyperbolic operators with triple characteristics2015

    • Author(s)
      E.Bernardi and T.Nishitani
    • Journal Title

      Proc. Japan Acad. Ser A.

      Volume: 91 Pages: 19-24

    • Peer Reviewed / Open Access / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Journal Article] Parametric resonance in wave map2014

    • Author(s)
      T.Nishitani and K.Yagdjian
    • Journal Title

      Funkcialaj Ekvacioj

      Volume: 57 Pages: 351-374

    • NAID

      130004927739

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Journal Article] Local and micro local Cauchy problem for non-effectively hyperbolic operators2014

    • Author(s)
      T.Nishitani
    • Journal Title

      J.Hyperbolic Differ. Equ.

      Volume: 11 Pages: 185-213

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Journal Article] 二次特性的双曲型偏微分法廷式の初期値問題の適切性2014

    • Author(s)
      西谷達雄
    • Journal Title

      数学

      Volume: 66 Pages: 366-391

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Journal Article] On the Cauchy problem for hyperbolic operators with double characteristics, a transition case2014

    • Author(s)
      T.Nishitani
    • Journal Title

      Fourier Analysis, Trends in Mathematics

      Pages: 311-334

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Journal Article] On the Cauchy problem for noneffectively hyperbolic operators, a transition case2013

    • Author(s)
      Tatsuo Nishitani
    • Journal Title

      Studies in Phase Space Analysis with Applications to PDEs

      Volume: 84

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Journal Article] On the Cauchy problem for noneffectively hyperbolic operators, a transition case2013

    • Author(s)
      T.Nishitani
    • Journal Title

      Studies in Phase Space Analysis with Applications to PDEs

      Volume: 84 Pages: 259-290

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Journal Article] On the Cauchy problem for non effectively hyperbolic operators, a transition case2013

    • Author(s)
      T.Nishitani
    • Journal Title

      Studies in Phase Space Analysis with Applications to PEDs

      Volume: vol 84 Pages: 259-290

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Journal Article] Note on lower bounds of energy growth for solutions to wave equations2012

    • Author(s)
      S.Doi, T.Nishitani, H.Ueda
    • Journal Title

      Osaka J. Math

      Volume: Vol 49 Pages: 1065-1085

    • NAID

      120005174161

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Journal Article] Note on lower bounds of energy growth for solutions to wave equations2012

    • Author(s)
      S.Doi, T.Nishitani, and H.Ueda
    • Journal Title

      Osaka J. Math.

      Volume: 49 Pages: 1065-1085

    • NAID

      120005174161

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Journal Article] Note on lower bounds of energy growth for solutions to wave equations2012

    • Author(s)
      Shin-ichi Doi, Tatsuo Nishitani, Hideo Ueda
    • Journal Title

      Osaka Journal of Mathematics

      Volume: vol.49 Pages: 1065-1085

    • NAID

      120005174161

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21540178
  • [Journal Article] On the Cauchy problem for noneffectively hyperbolic operators: Gevrey 4 well-posedness2011

    • Author(s)
      E.Bernardi, T.Nishitani
    • Journal Title

      Kyoto J. Math.

      Volume: 51 Pages: 767-810

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Journal Article] Some well-posed Cauchy problem for second order hyperbolic equations2011

    • Author(s)
      F.Colombini, T.Nishitani, N.Orru, L.Pernazza
    • Journal Title

      Osaka J.Math.

      Volume: 48 Pages: 645-673

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Journal Article] On the Cauchy problem for noneffectively hyperbolic operators, the Gevrey 4 well-posedness2011

    • Author(s)
      E.Bernardi, T.Nishitani
    • Journal Title

      Kyoto J. Math

      Volume: Vol 51 Pages: 767-810

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Journal Article] On the Cauchy problem for noneffectively hyperbolic operators, the Gevrey 3 well-posedness2011

    • Author(s)
      E.Bernardi, T.Nishitani
    • Journal Title

      J. Hyperbolic Differ. Equ

      Volume: vol 8 Pages: 615-650

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Journal Article] Some well-posed Cauchy problem for second order hyperbolic equations2011

    • Author(s)
      F.Colombini, T.Nishitani, N.Oruu, L.Pernazza
    • Journal Title

      Osaka J. Math

      Volume: vol 48 Pages: 645-673

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Journal Article] A note on the zero free region of the Stokes multipliers for second order ordinary differential equations with cubic polynomial coefficients2011

    • Author(s)
      T.Nishitani
    • Journal Title

      Funkcialaj Ekvacioj

      Volume: vol 54 Pages: 473-483

    • NAID

      130001271654

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Journal Article] A class of Fourier integral operators with complex phase related to the Gevrey classes2010

    • Author(s)
      T.Nishitani, M.Tamura
    • Journal Title

      Journ.Pseudo-Diffr.Oper.Appl. vol 1

      Pages: 255-292

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Journal Article] A class of Fourier integral operators with complex phase related to the Gevrey classes2010

    • Author(s)
      T.Nishitani, M.Tamura
    • Journal Title

      Journ.Pseudo-Diff.Oper.Appl.

      Volume: 1 Pages: 255-292

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Journal Article] A class of Fourier integral operators with complex phase related to the Gevrey classes2010

    • Author(s)
      T.Nishitani, M.Tamura
    • Journal Title

      J.Pseudo-Differ.Oper.Appl. vol 1

      Pages: 255-292

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] A class of Fourier integral operators with complex phase related to the Gevrey classes2010

    • Author(s)
      Tatsuo Nishitani, Mitsuji Tamura
    • Journal Title

      J.Pseudo-Differ.Oper.Appl.

      Volume: 1 Pages: 255-292

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] On Gevrey well-posedness of the Cauchy problem for some noneffectively hyperbolic operators2009

    • Author(s)
      T.Nishitani
    • Journal Title

      Advances in Phase Space Analysis of Partial Differential Equations, Birkhauser

      Pages: 217-233

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Journal Article] On Gevrey well-posedness of the Cauchy problem for some noneffectively hyperbolic operators, Advances in Phase Space Analysis in PDEs2009

    • Author(s)
      T. Nishitani
    • Journal Title

      Birkhauser

      Pages: 217-232

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] On Gevrey well-posedness of the Cauchy problem for some noneffectively hyperbolic operators2009

    • Author(s)
      Tatsuo Nishitani
    • Journal Title

      Advances in Phase Space Analysis of partial Differential Equations, Birkhauser

      Pages: 217-213

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] On Gevrey well-posedness of the Cauchy problem for some non- effectively hyperbolic operators2009

    • Author(s)
      T. Nishitani
    • Journal Title

      Advances in Phase Space Analysis of Partial Differential Equations, Birkhauser

      Pages: 217-233

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Journal Article] On Gevrey well-posedness of the Cauchy problem for some non-effectively hyperbolic operators2009

    • Author(s)
      T.Nishitani
    • Journal Title

      Advances in Phase Space Analysis of Partial Differential Equations, Birkhauser

      Pages: 217-233

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Journal Article] On the Cauchy problem for non effectively Puypertolic operatore, the Iwcu-Petkov-Hormanden condition and the Gevreg well poeedness2008

    • Author(s)
      T., Nishitani
    • Journal Title

      Sendica Math. Journal 34

      Pages: 1001-1024

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540150
  • [Journal Article] On the Cauchy problem for noneffectively hyperbolic operators, the Ivrii-Petkov-Hormander condition and the Gevrey well-posedness2008

    • Author(s)
      T.Nishitani
    • Journal Title

      Serdica Math.J. vol 34

      Pages: 155-178

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] On the Cauchy problem for non effectively hyperbolic operators, the lvrii-Petkov-Hormander condition and the Gevrey well-posedness2008

    • Author(s)
      T. Nishitani
    • Journal Title

      Serdica Math. J. 34

      Pages: 155-178

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] On the Cauchy problem for non effectively hyperbolic operatone, the Iurii-Petkou-Hormandes cond-ition and the Gevrey2008

    • Author(s)
      T. Nishitani
    • Journal Title

      Serdica Math. Jowmal well posednees 34

      Pages: 1001-1024

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16540150
  • [Journal Article] On the Cauchy problem for noneffectively hyperbolic operators, the Gevrey 5 well-posedness2008

    • Author(s)
      E.Bernardi, T.Nishitani
    • Journal Title

      J. d'Analyse Math. vol 105

      Pages: 197-240

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] On the Cauchy problem for non-effectively hyperbolic Operators, the Gevrey 5 well-posedness2008

    • Author(s)
      T. Nishitani, E. Bernardi
    • Journal Title

      J. d'Analyse Math. 105

      Pages: 197-240

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] On the Cauchy problem for non-effectively hyperbolic operators, the Gevrey 5 well-posedness2008

    • Author(s)
      T. Nishitani, E. Bernardi
    • Journal Title

      J. d'Analyse Math. 105

      Pages: 197-240

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] On the Cauchy problem for noneffectively hyperbolic operators, the Ivrii-Petkov-Hormander condition and the Gevrey well-posedness2008

    • Author(s)
      T. Nishitani
    • Journal Title

      Serdica Math. J 34

      Pages: 155-178

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] On the Cauchy problem for noneffectively hyperbolic operators the Gevrey 5 well-posedness2008

    • Author(s)
      T. Nishitani
    • Journal Title

      J. d'Analyse Math 105

      Pages: 197-240

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] On the Cauchy problem for non effectively hyperbolic Operators, the Ivrii-Petkov-Hormander condition and the Gevrey well-poseness2008

    • Author(s)
      T. Nishitani
    • Journal Title

      Serdica Math. J. 34

      Pages: 155-178

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] Second order weakly hyperbolic operators with coefficients sum of powers of functions2007

    • Author(s)
      F. Colombini, T. Nishitani
    • Journal Title

      Osaka J. Math vol. 44

      Pages: 121-137

    • NAID

      120004842760

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Journal Article] An example of the Cauchy problem well posed in any Gevrey class2007

    • Author(s)
      T.Nishitani, F.Colombini
    • Journal Title

      Annali Mat. Pura Appl. 23(in press)(To appear)

    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] Second order weakly hyperbolic operators with coefficients sum of powers of functions2007

    • Author(s)
      F.Colombini and T.Nishitani
    • Journal Title

      Osaka J.Math. 44

      Pages: 121-137

    • NAID

      120004842760

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Journal Article] Second order weakly hyperbolic operators with coefficients sum of powers of functions2007

    • Author(s)
      F.Colombini, T.Nishitani
    • Journal Title

      Osaka J.Math. vol.44

      Pages: 121-137

    • NAID

      120004842760

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Journal Article] An example of the Cauchy problem well posed in any Gevrey class2007

    • Author(s)
      F. Colombini, T. Nishitani
    • Journal Title

      Annali Mat. Pura Appl vol. 186

      Pages: 521-643

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Journal Article] An example of the Cauchy problem well posed in any Gevrey class2007

    • Author(s)
      F.Colombini and T.Nishitani
    • Journal Title

      Annali Mat.Pura Appl. 186

      Pages: 521-643

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Journal Article] An example of the Cauchy problem well posed in any Gevrey class2007

    • Author(s)
      T. Nishitani, F. Colombini
    • Journal Title

      Annali di Matematica 186

      Pages: 621-643

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] Second order hyperbolic operators with coefficients sum of Dowers of functions2007

    • Author(s)
      T.Nishitani, F.Colombini
    • Journal Title

      Osaka J. Math. 44

      Pages: 1-17

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] Second order hyperbolic operators with coefficients sum of powers of functions2007

    • Author(s)
      T.Nishitani, F.Colombini
    • Journal Title

      Osaka J.Math. 44

      Pages: 1-17

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] An example of the Canchy problem well posed in any Geviey claee2007

    • Author(s)
      F. Colombini・T. Nishitani
    • Journal Title

      Annali di Matematica 186

      Pages: 621-643

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16540150
  • [Journal Article] Second order weakly hyperbolic operators with coefficients sum of powers of functions2007

    • Author(s)
      T. Nishitani, F. Colombini
    • Journal Title

      Osaka J. Math. 44

      Pages: 121-137

    • NAID

      120004842760

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] Second order hyperbolic operators with coefficients sum of powers of functions2007

    • Author(s)
      T.Nishitani, F.Colombini
    • Journal Title

      Osaka J. Math. 44

      Pages: 1-17

    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] An example of the Canchy Problem well pored in any Georey class2007

    • Author(s)
      F., Colombini, T., Nishitani
    • Journal Title

      Annali di Matematica 186

      Pages: 621-643

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540150
  • [Journal Article] An example of the Cauchy problem well posed in any Gevrey class2007

    • Author(s)
      F.Colombini, T.Nishitani
    • Journal Title

      Annali Mat.Pura Appl. vol.186

      Pages: 521-643

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Journal Article] An example of the Cauchy problem well posed in any Gevrey class2007

    • Author(s)
      T.Nishitani, F.Colombini
    • Journal Title

      Annali Mat.Pura Appl. (掲載決定)(to appear)

    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] Second order weakly Puypertolic oreatoce with coefficiente sum of powers of functionce2007

    • Author(s)
      F., Colombini, T., Nishitani
    • Journal Title

      Osaka Journal of Matheratice 44

      Pages: 121-137

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540150
  • [Journal Article] Second osdes weakly hyperbolic operators with coefficients sum of powers of functions2007

    • Author(s)
      F. Colombini・T. Nishitani
    • Journal Title

      Osaka Jownal of Mathematics 44

      Pages: 121-137

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16540150
  • [Journal Article] On the Cauchy problem for $D_t^2-D_xa(t,x)^nD_x2006

    • Author(s)
      T.Nishitani
    • Journal Title

      Annali dell'Universita'di Ferrara (to appear in Springer) (掲載決定)(to appear)

    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] On the Cauchy problem for $D_t^2-D_xa(t,x)D_x$ in the Gevrey Class of order $s>2$2006

    • Author(s)
      T.Nishitani
    • Journal Title

      Comm. P. D. E. 31

      Pages: 1289-1319

    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] Smoothly symmetrizable complex systems and the real reduced dimension2006

    • Author(s)
      T.Nishitani, J.Vaillant
    • Journal Title

      Tsukuba J. Math. 30

      Pages: 259-271

    • NAID

      120005366084

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] Non effectively hyperbolic operators and bicharacteristics2006

    • Author(s)
      T.Nishitani
    • Journal Title

      Proceedings of the conference "Phase Space Analysis of PDE's" (to appear in Birkhauser) (掲載決定)(to appear)

    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] Non effectively hyperbolic operators and bicharacteristics2006

    • Author(s)
      T.Nishitani
    • Journal Title

      Phase Space Analysis of PDE's, Birkhauser

      Pages: 217-246

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] Non effectively hyperbolic operators and bicharacteristics2006

    • Author(s)
      T.Nishitani
    • Journal Title

      Phase Space Analysis of PDE's(Birkhauser)

      Pages: 217-246

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] On the Cauchy problem for D_t^2- D_xa(t,x)D_x in the Gevrey class of order s>22006

    • Author(s)
      T.Nishitani
    • Journal Title

      Comm.P.D.Es. 31

      Pages: 1289-1319

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] On the Cauchy problem for $D_t^2-D_xa(t,x)D_x$ in the Gevrey class of order $s>2$2006

    • Author(s)
      T.Nishitani
    • Journal Title

      Comm. P.D.Es. 31

      Pages: 1289-1319

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] On the Cauchy problem for $D_t^2-D_xa(t,x)^nD_x$2006

    • Author(s)
      T.Nishitani
    • Journal Title

      Annali dell'Universita di Ferrara 52

      Pages: 395-430

    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] Smoothly symmetrizable complex systems and the real reduced dimension2006

    • Author(s)
      T.Nishitani, J.Vaillant
    • Journal Title

      Tsukuba J.Math. 30

      Pages: 259-271

    • NAID

      120005366084

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] Smoothly symmetrizable complex systems and the reduced dimension2006

    • Author(s)
      T.Nishitani, J.Vaillant
    • Journal Title

      Tsukuba Journal of Mathematics (掲載決定)(to appear)

    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] Non effectively hyperbolic operators, Hamilton map and bicharacteristics2004

    • Author(s)
      T.Nishitani
    • Journal Title

      J.Math.Kyoto Univ. 44

      Pages: 55-98

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] Non effectively hyperbolic operators, Hamilton map and bicharacteristics2004

    • Author(s)
      T.Nishitani
    • Journal Title

      J. Math. Kyoto Univ. 44

      Pages: 55-98

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] On finitely degenerate hyperbolic operators of second order2004

    • Author(s)
      T.Nishitani, F.Colombini
    • Journal Title

      Osaka J.Math. 41・4

      Pages: 933-947

    • NAID

      120005986901

    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] An extension of Glaeser inequality and its applications2004

    • Author(s)
      T.Nishitani, S.Spagnolo
    • Journal Title

      Osaka J. Math. 41

      Pages: 145-157

    • NAID

      120004839344

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] Non effectively hyperbolic operators, Hamilton map and bicharacteristics2004

    • Author(s)
      T.Nishitani
    • Journal Title

      J.Math.Kyoto Univ. 44・1

      Pages: 55-98

    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] An extension of Glaeser inequality and its applications2004

    • Author(s)
      T.Nishitani, S.Spagnolo
    • Journal Title

      Osaka J.Math. 41

      Pages: 145-157

    • NAID

      120004839344

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] An extension of Glaeser inequality and its applications2004

    • Author(s)
      T.Nishitani, S.Spagnolo
    • Journal Title

      Osaka J.Math. 41・1

      Pages: 145-157

    • NAID

      120004839344

    • Data Source
      KAKENHI-PROJECT-15340044
  • [Journal Article] On the Cauchy problem for noneffectively hyperbolic operators

    • Author(s)
      T.Nishitani
    • Journal Title

      the Gevrey 4 well-posedness(Kyoto J. Math)

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] On the Cauchy problem for noneffectively hyperbolic operators

    • Author(s)
      T.Nishitani
    • Journal Title

      the Gevrey 3 well-posedness(J.H.D.E.に掲載確定)

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] Transversally strictly hyperbolic systems2018

    • Author(s)
      Nishitani Tatsuo
    • Organizer
      Linear and Nonlinear Wave Phenomena
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Presentation] On the Cauchy problem for $D_t^2-b(t)D_xa(x)D_x$2017

    • Author(s)
      T.Nishitani
    • Organizer
      Simposio di Analisi Matematica in occasione dei 70 anni di Ferruccio Colombini
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Presentation] On the Cauchy problem for $D_t^2-b(t)D_xa(x)D_x$2017

    • Author(s)
      T.Nishitani
    • Organizer
      Simposio di Analisi Matematica in occasione dei 70 anni de Ferruccio Colombini
    • Invited
    • Data Source
      KAKENHI-PROJECT-17K05324
  • [Presentation] On the Gevrey strong hyperbolicity2016

    • Author(s)
      T.Nishitani
    • Organizer
      Seminar on PDE, University of Pisa
    • Place of Presentation
      Department of Math. University of Pisa (イタリア)
    • Invited
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Presentation] On the Gevrey strong hyperbolicity2015

    • Author(s)
      西谷達雄
    • Organizer
      第22回超局所解析と古典解析
    • Place of Presentation
      富山県民会館
    • Year and Date
      2015-12-05
    • Invited
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Presentation] On the Gevrey strong hyperbolicity2015

    • Author(s)
      Tatsuo Nishitani
    • Organizer
      Seminaire sur equations hyperboliques et physique mathematique
    • Place of Presentation
      IHP 研究所 パリ
    • Year and Date
      2015-06-02
    • Invited
    • Data Source
      KAKENHI-PROJECT-26400167
  • [Presentation] A remark on the local and microlocal Cauchy problem for noneffectively hyperbolic operators2013

    • Author(s)
      T.Nishitani
    • Organizer
      Linear and Nonlinear Hyperbolic Equations
    • Place of Presentation
      ピサ, イタリア
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Presentation] Local and microlocal Cauchy problem for noneffectively hyperbolic operators2013

    • Author(s)
      Tatsuo Nishitani
    • Organizer
      9-th International ISSAC Congress
    • Place of Presentation
      クラコフ(ポーランド)
    • Invited
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Presentation] 二次特性点を持つ偏微分方程式の初期値問題2013

    • Author(s)
      西谷 達雄
    • Organizer
      2013年日本数学会企画特別講演
    • Place of Presentation
      京都大学
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Presentation] A renark on the local and microlocal Cauchy problem for noneffectively hyperbolic operators2013

    • Author(s)
      Tatsuo Nishitani
    • Organizer
      Linear and Nonlinear Hyperbolic Equations
    • Place of Presentation
      ピサ(イタリア)
    • Invited
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Presentation] Local and microlocal Cauchy problem for noneffectively hyperbolic operators2013

    • Author(s)
      T.Nishitani
    • Organizer
      9-th International ISSAC Congress
    • Place of Presentation
      クラコフ, ポーランド
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Presentation] On the Cauchy problem for noneffectively hyperbolic operators--a transition case2012

    • Author(s)
      T.Nishitani
    • Organizer
      Fourier Analysis and Pseudo-Differential Operators
    • Place of Presentation
      Helsinki
    • Invited
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Presentation] On the Cauchy Problem for noneffectively hyperbolic operators, a transition case2012

    • Author(s)
      T.Nishitani
    • Organizer
      Fourier Analysis and Pseudo-Differential Operators
    • Place of Presentation
      ヘルシンキ, フィンランド
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Presentation] On the Cauchy problem for noneffectively hyperbolic operators, a transition case2011

    • Author(s)
      T.Nishitani
    • Organizer
      Perspectives in Phase Space Analysis on PDE's(招待講演)
    • Place of Presentation
      Bertinoro (イタリア)
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Presentation] The Gevrey well-posedness of the Cauchy problem for noneffectively hyperbolic operators2011

    • Author(s)
      T.Nishitani
    • Organizer
      2011 NCTS Taiwan-Japan Workshop on PDEs and Geometric Analysis(招待講演)
    • Place of Presentation
      台北 (台湾)
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Presentation] On the Cauchy problem for noneffectively hyperbolic operators, a transition case2011

    • Author(s)
      T.Nishitani
    • Organizer
      Perspectives in Phase Space Analysis on PDEs
    • Place of Presentation
      Bertinoro, イタリア
    • Year and Date
      2011-09-29
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Presentation] The Gevrey well-posedness of the Cauchy problem for noneffectively hyperbolic operators2011

    • Author(s)
      T.Nishitani
    • Organizer
      2011 NCTS Taiwan-Japan Workshop on PDEs and Geometric Analysis
    • Place of Presentation
      台北, 台湾
    • Year and Date
      2011-12-19
    • Data Source
      KAKENHI-PROJECT-23540199
  • [Presentation] On the Cauchy problem for noneffectively hyperbolic operators in the Gevrey classes2010

    • Author(s)
      西谷達雄
    • Organizer
      The 8-th AIMS Conference on Dynamical Systems, Differential Equations and Applications
    • Place of Presentation
      Dresden(Germany)
    • Year and Date
      2010-05-27
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] On the Gevrey well-posedness of the Cauchy problem for noneffectively hyperbolis operators2010

    • Author(s)
      Tatsuo Nishitani
    • Organizer
      Linear and Nonlinear Hyperbolic Equations
    • Place of Presentation
      Ennio De Giorgi Center, Pisa(ITALY)
    • Year and Date
      2010-02-10
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] On the Cauchy problem for noneffectively hyperbolic operators in the Gevrey classes2010

    • Author(s)
      Tatsuo Nishitani
    • Organizer
      The 8-th AIMS Conference on Dynamical Systems, Differential Equations and Applications
    • Place of Presentation
      Dresden University of Technology, Germany
    • Year and Date
      2010-05-27
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] On the Gevrey well-posedness of the Cauchy problem for noneffectively hyperbolic operators2010

    • Author(s)
      西谷達雄
    • Organizer
      Linear and Nonlinear Hyperbolic Equations
    • Place of Presentation
      Centro de Giorgi, Pisa (Italy)
    • Year and Date
      2010-02-10
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] On the Gevrey well-posedness of the Cauchy problem for noneffectively hyperbolic operators2010

    • Author(s)
      T. Nishitani
    • Organizer
      Linear and Nonlinear Hyperbolic Equations
    • Place of Presentation
      Ennio De Giorgi Center, Pisa, Italy
    • Year and Date
      2010-02-10
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] 非効果的双曲型方程式の初期値問題とGevrey空間2010

    • Author(s)
      西谷達雄
    • Organizer
      2010年度日本数学会年会
    • Place of Presentation
      慶応大学(函数方程式論分科会特別講演)
    • Year and Date
      2010-03-24
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Presentation] 非効果的双曲型方程式の初期値問題と Gevrey 空間2010

    • Author(s)
      西谷達雄
    • Organizer
      日本数学会
    • Place of Presentation
      慶応大学
    • Year and Date
      2010-03-24
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Presentation] A class of Fourier integral operators with complex phase related to the Gevrey class2010

    • Author(s)
      西谷達雄
    • Organizer
      International Workshop on Global Properties of Partial Differential Equations on Manifolds
    • Place of Presentation
      Cagliari (Italy)
    • Year and Date
      2010-09-23
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] 非実効果的双曲型方程式の初期値問題と Gevrey 空間 (解析学賞受賞特別講演)2010

    • Author(s)
      西谷達雄
    • Organizer
      日本数学会2010年度年会
    • Place of Presentation
      慶応大学
    • Year and Date
      2010-03-24
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] 非効果的双曲型方程式の初期値問題と Gevrey 空間 (特別講演)2010

    • Author(s)
      西谷達雄
    • Organizer
      日本数学会
    • Place of Presentation
      慶応大学
    • Year and Date
      2010-03-24
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Presentation] 非効果的双曲型方程式の初期値問題とGevrey空間2010

    • Author(s)
      西谷達雄
    • Organizer
      日本数学会2010年度年会(解析学賞受賞特別講演)
    • Place of Presentation
      慶応大学
    • Year and Date
      2010-03-24
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] A class of Fourier integral operators with complex phase related to the Gevrey classes2010

    • Author(s)
      Tatsuo Nishitani
    • Organizer
      International Workshop on Global Properties of Partial Differential Equations on Manifolds
    • Place of Presentation
      University of Cagliari, Italy
    • Year and Date
      2010-09-23
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] On the Cauchy problem for noneffectively hyperbolic operators and the Gevrey classes2009

    • Author(s)
      Tatsuo Nishitani
    • Organizer
      7-th East Asia Conference on PDEs
    • Place of Presentation
      The Chinese University of Hong Kong, Hong Kong(CHINA)
    • Year and Date
      2009-12-15
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] On the Cauchy problem for noneffectively hyperbolic operators,the Gevrey 4 well-posedness2009

    • Author(s)
      Tatsuo Nishitani
    • Organizer
      7-th ISSAC Congress
    • Place of Presentation
      Imperial College, London(UK)
    • Year and Date
      2009-07-16
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] On the Cauchy problem for noneffectively hyperbolic operators and the Gevrey classes2009

    • Author(s)
      西谷達雄
    • Organizer
      The 7-th East Asia Conference on PEDs
    • Place of Presentation
      Hong Kong (Hong Kong)
    • Year and Date
      2009-12-15
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] On the Cauchy problem for noneffectively hyperbolic operators, the Gevrey 4 well-posedness2009

    • Author(s)
      西谷達雄
    • Organizer
      The 7-th ISSAC Congress
    • Place of Presentation
      Imperial College, London (England)
    • Year and Date
      2009-07-16
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] On the Cauchy problem for noneffectively hyperbolic operators, the Gevrey 4 well-posedness2009

    • Author(s)
      T. Nishitani
    • Organizer
      7-th ISSAC Congress
    • Place of Presentation
      Imperial College, London, England
    • Year and Date
      2009-07-16
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] 2次特性点をもつ双曲型作用素とGevreyクラス(特別講演)2008

    • Author(s)
      西谷 達雄
    • Organizer
      日本数学会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-23
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Presentation] 2次特性点を持つ双曲型作用素とGevreyクラス2008

    • Author(s)
      西谷達雄
    • Organizer
      2008年度日本数学会年会
    • Place of Presentation
      近畿大学(函数方程式論分科会特別講演)
    • Year and Date
      2008-03-23
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Presentation] 2 次特性点をもつ双曲型作用素とGevrey クラス2008

    • Author(s)
      西谷達雄
    • Organizer
      日本数学会2008年度年会(函数方程式論分科会特別講演)
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-23
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] Hyperbolic operators with double characteristics2008

    • Author(s)
      西谷達雄
    • Organizer
      The 1^<st> Joint Workshop of Shanghai Jiao Tong University and Osaka University of Mathematical Sciences
    • Place of Presentation
      Shanghai (China)
    • Year and Date
      2008-12-17
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] 2次特性点をもつ双曲型作用素とGevreyクラス2008

    • Author(s)
      西谷達雄
    • Organizer
      日本数学会2008年会関数方程式分科会特別講演
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-23
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] 2次特性点をもつ双曲型作用素と Gevrey クラス (特別講演)2008

    • Author(s)
      西谷達雄
    • Organizer
      日本数学会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-23
    • Data Source
      KAKENHI-PROJECT-19540202
  • [Presentation] On the Cauchy problem for non effectively hyperbolic operators, the Gevrey 5 well posedness2007

    • Author(s)
      Nishitani Tatsuo
    • Organizer
      Hyperbolic operators and Scattering
    • Place of Presentation
      Bordeaux, France
    • Year and Date
      2007-05-13
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] An example of non effectively hyperbollic Cauchy problem not Gevrey well posed for any lower order term2007

    • Author(s)
      Nishitani Tatsuo
    • Organizer
      Phase Space Analysis of PDEs 2007
    • Place of Presentation
      Certosa di Pontignano, Siena, Italy
    • Year and Date
      2007-10-12
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Presentation] Weyl-Hormander calculus in the Gevrey classes

    • Author(s)
      T.Nishitani
    • Organizer
      Global Properties of PDE's on Manifolds
    • Place of Presentation
      Cagliari (Italy)
    • Year and Date
      2014-09-17 – 2014-09-19
    • Invited
    • Data Source
      KAKENHI-PROJECT-26400167
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