Hata Masayoshi 畑政義

… Alternative Names

Researcher Number	40156336 … More / 40145336 Less
Other IDs
Affiliation (Current)	2019: 京都大学, 理学研究科, 准教授
Affiliation (based on the past Project Information) *help	2007 – 2009: Kyoto University, 大学院・理学研究科, 准教授 2006: 京都大学, 大学院理学研究科, 助教授 2003 – 2005: Kyoto Univ., GraduateSchool of Science, Ass.Prof., 大学院・理学研究科, 助教授 1992 – 2002: 京都大学, 総合人間学部, 助教授 1992: Kyoto Univ.,Integrated Human Studies,Assistant Professor, 助教授 1991: 京都大学, 教養部, 助教授 1988: 京都大学, 理学部, 助手
Review Section/Research Field	Principal Investigator 解析学 / Basic analysis / Basic analysis Except Principal Investigator 解析学 / Algebra / General mathematics (including Probability theory/Statistical mathematics) / Basic analysis / 代数学・幾何学
Keywords	Principal Investigator 超越数 / 無理数度 / パデ近似 / Pade approximation / Irrationality / 小数部分 / Salem数 / マーラー関数 / 無理数 / ゼータ関数 … More Except Principal Investigator セルオートマトン / 準楕円性 / 準楕円型作用素 / ディオファンタス近似 / オイラー流 / 算術幾何平均 / 平衡分布 / Wick calculus / Ruelle operator / フラクタル / 非線形現象 / 共形場理論 / 随伴多様体 / 双曲型方程式 / 確率過程 / 対数型 / 対数型ソボレフ不等式 / Schodinger方程式 / supersymmetric field theory / Diophantine approximation / PISTON PROB. / Borel総和法 / 強一意性定理 / Ruelle作用素 / 非線形可積分系 / conformal field theory / 楕円型方程式 / カオス / ホモロジー代数. / schodinger方程式 / Kahler manifold / key wards / ドルボー補題 / 非線形固有値問題 / 退化楕円型 / hypaellipticity / microlocal analysis / semiliner Dirichlet problem / Gorenstein環. / 球等質空間 / 非線形波動 / 位相不変量 / Wick calculus. / 局所可解性 / 特異点 / ラドン変換 / 超対称ゲージ理論 / 幾何学的不変式論 / 擬微分作用素 / 有限次元多元環の表現論 / ケ-ラ-多様体 / Gevrey class / 対数型Sobolev不等式 / 自己相似 / 戸田格子 / グルサ-問題 / 退化Monge-Ampere方程式 / reductive dual pair / 巾零軌道 / ユニタリ表現 / Egorov type / 不動点 / infinitely degenerate / 電気回路網 / 双極性 / Banach scale / Grassmann manifold / 最大値原理 / integrable system / 不変微分作用素 / 非線形力学系 / isomonodromic deformation / 吸引領域 / 複素力学系 / スペクトル / Hypoellipticity / unitary representation / Einstein-Kahler metric / ハイバ-ケ-ラ-空間 / Sobolev inequality of logarithmic type / Dolbeault lemma / solvable spin system / 漸近展開 / DUFFING EQUATION / smoothing effect / ホイヘンス原理 / associated variety / geometric invariant theory / matched asymptotics / 表現論 / Wick作用素 / 位相的ゲージ理論 / 微分不可能関数 / Huyghens principle / アインシュタイン・ケーラー計量 / 平滑化効果 / 非2次無理数度 / 可積分系 / INTERVAL ANALYSIS / VISCONS GAS / 随伴サイクル / Egorov型 / COMPUTER PROOF / 概均質ベクトル空間 / 複素算術幾何平均 / Fefferman-Phong不等式 / モノドロミー保存変形 / Schrodinger方程式 / Toda lattice / saddle method / サドル法 / 滞在時間 / sololev不等式 / associated cycle / ゲージ理論 / beyond all orders / Gevrey指数 / 超局所解析 / Schrodinger equation / 可解スピン系 / topological field theory / 超対称性 / 4次元多様体 / PERIODIC SOLUTIONS / 半線型楕円型方程式 / 局所環、 / Gevrey order / Lagrange plane / モジュライ / 半単純リー群 / invriant differential operator / Navies-Stokes / Whitham変形 / ケーラー多様体 / 再生関数 / 二重対数関数 / 鞍部点法 / Whitham deformation / 共系場理論 / Cohen-Macaulay加群 / 有限次元可積分系 / semisimple Lie group / 半単純群の表現論 / 準惰性円 / 固有値 / 多次元Schrodinger作用素 / nilpotent orbit / 自己相似過程 / Fefferman-Phong inegality / 等モノドロミー変形 / グラスマン多様体 / theta correspondence / 無限次退化 / 楕円曲面 / spectre / 自己相似関数 / 接続問題 / テータ対応 / ガウス算術平均 / 半線形Diriclet問題 Less

Analytic Study for Pisot and Salem numbersPrincipal Investigator
- Principal Investigator
  
  HATA Masayoshi
- Project Period (FY)
  2006 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Kyoto University
Research for rational approximation to transcendental numbersPrincipal Investigator
- Principal Investigator
  
  HARA Masayoshi
- Project Period (FY)
  2004 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  KYOTO UNIVERSITY
Analytical research for transcendental numbersPrincipal Investigator
- Principal Investigator
  
  HATA Masayoshi
- Project Period (FY)
  2000 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Basic analysis
- Research Institution
  Kyoto University
the positivity of degenerate elliptic operators and the microlocal analysis on solutions for partial differentiai equations
- Principal Investigator
  
  MORIMOTO Yoshinori
- Project Period (FY)
  2000 – 2003
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Basic analysis
- Research Institution
  KYOTO UN IVERSITY
Theta correspondence and associated cycles
- Principal Investigator
  
  NISHIYAMA Kyo
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  KYOTO UNIVERSITY
Finite dimensional integrable structure in systems with infinite degree of freedom
- Principal Investigator
  
  TAKASAKI Kanehisa
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  KYOTO UNIVERSITY
フラクタル理論と超越数論の組織的研究Principal Investigator
- Principal Investigator
  
  畑政義
- Project Period (FY)
  1997 – 1998
- Research Category
  
  Grant-in-Aid for Exploratory Research
- Research Field
  
  解析学
- Research Institution
  Kyoto University
Pade type approximation and its application to the number theoryPrincipal Investigator
- Principal Investigator
  
  HATA Masayoshi
- Project Period (FY)
  1997 – 1998
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  解析学
- Research Institution
  KYOTO UNIVERSITY
Microlocal analysis for operators with infinite degeneracy
- Principal Investigator
  
  MORIMOTO Yoshinori
- Project Period (FY)
  1996 – 1998
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  解析学
- Research Institution
  KYOTO UNIVERSITY
可換環論とその表現の研究
- Principal Investigator
  
  西和田公正
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Kyoto University
有理近似および超越数の研究Principal Investigator
- Principal Investigator
  
  畑政義
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Kyoto University
漸近解析的方法による非線形問題の研究
- Principal Investigator
  
  高崎金久
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Kyoto University
現象解析の数理的研究
- Principal Investigator
  
  河野敬雄
- 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
  Kyoto University
可換環の表現とホモロジー代数の研究
- Principal Investigator
  
  吉野雄二
- Project Period (FY)
  1994
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Kyoto University
数理科学の諸分野に現れる漸近解析的問題の研究
- Principal Investigator
  
  TAKASAKI Kanehisa
- Project Period (FY)
  1994
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Kyoto University
自然現象の数学解析的総合研究
- Principal Investigator
  
  河野敬雄
- Project Period (FY)
  1994
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Kyoto University
超越数の研究Principal Investigator
- Principal Investigator
  
  畑政義
- Project Period (FY)
  1993
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Kyoto University
擬微分作用素の正値性と微分方程式の解の超局所解析
- Principal Investigator
  
  森本芳則
- Project Period (FY)
  1993
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Kyoto University
Study on global structures of manifolds.
- Principal Investigator
  
  IMANISHI Hideki
- Project Period (FY)
  1991 – 1992
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  KYOTO UNIVERSITY
数理物理学に現れる偏微分方程式の解の研究
- Principal Investigator
  
  西田孝明
- Project Period (FY)
  1988
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Kyoto University

All 2010 2009 2007 2005

All Journal Article Presentation Book

[Book] World Scientific2007
- Author(s)
  Masayoshi Hata
- Total Pages
  302
- Publisher
  Problems and Solutions in Real Analysis
- Data Source
  KAKENHI-PROJECT-18540172
[Book] PROBLEMS AND SOLUTIONS IN REAL ANALYSIS, Series on Number Theory and Its Applications2007
- Author(s)
  Masayoshi Hata
- Total Pages
  292
- Publisher
  World Scientific
- Data Source
  KAKENHI-PROJECT-18540172
[Book] Problems and Solutions in Real Analysis (Series on Number Theory and its Applications, Vol.4)2007
- Author(s)
  Masayoshi Hata
- Total Pages
  304
- Publisher
  World Scientific Publishing
- Data Source
  KAKENHI-PROJECT-18540172
[Journal Article] A lower estimate for ||e^n||2010
- Author(s)
  Masayoshi Hata
- Journal Title
  
  Journal of Number Theory (掲載確定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540172
[Journal Article] A lower estimate for ||e^n||2010
- Author(s)
  Masayoshi Hata
- Journal Title
  
  Journal of Number Theory 130
  
  Pages: 1685-1704
- Data Source
  KAKENHI-PROJECT-18540172
[Journal Article] Note on the fractional parts of λ θ ^n2005
- Author(s)
  Masayoshi Hata
- Journal Title
  
  Acta Arithmetica 120・2
  
  Pages: 153-157
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-16540149
[Journal Article] Note on the fractional part of λ θ^n2005
- Author(s)
  Masayoshi Hata
- Journal Title
  
  Acta Arithmetica 120・2
  
  Pages: 153-157
- Data Source
  KAKENHI-PROJECT-16540149
[Journal Article] Note on the fractional parts of λθ^n2005
- Author(s)
  M.Hata
- Journal Title
  
  Acta Aritlimetica 120,no.2
  
  Pages: 153-157
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-16540149
[Presentation] A lower estimate for ||e^n||2009
- Author(s)
  畑政義
- Organizer
  Diophantine Analysis and Related Fields 2009
- Place of Presentation
  日本大学理工学部
- Data Source
  KAKENHI-PROJECT-18540172
[Presentation] Diophantine Analysis and Related Fields 20092009
- Author(s)
  畑政義
- Place of Presentation
  日本大学理工学部
- Data Source
  KAKENHI-PROJECT-18540172

1. KONO Norio (90028134)

# of Collaborated Projects: 9 results

# of Collaborated Products: 0 results
2. MORIMOTO Yoshinori (30115646)

# of Collaborated Projects: 8 results

# of Collaborated Products: 0 results
3. ASANO Kiyoshi (90026774)

# of Collaborated Projects: 8 results

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4. USHIKI Shigehiro (10093197)

# of Collaborated Projects: 7 results

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5. NISHIWADA Kimimasa (60093291)

# of Collaborated Projects: 5 results

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6. TAKASAKI Kanehisa (40171433)

# of Collaborated Projects: 5 results

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7. SAKURAGAWA Takashi (60196136)

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8. UEDA Tetsuo (10127053)

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9. TAKEUCHI Akira (40026761)

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10. NAGATA Makoto (30293971)

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11. SAITO Hiroshi (20025464)

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12. UE Masaaki (80134443)

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13. IMANISHI Hideki (90025411)

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14. 宮本宗実 (00026775)

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15. YAMAUCHI Masatoshi (30022651)

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16. KIGAMI Jun (90202035)

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17. 秋葉知温 (60027670)

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18. GYOJO Akihiko (50116026)

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19. 日置尋久 (70293842)

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20. NISHIYAMA Kyo (70183085)

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21. MATSUKI Toshihiko (20157283)

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22. KATO Shinichi (90114438)

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23. 吉野雄二 (00135302)

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24. 笠原晧司 (70026748)

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25. 西田孝明 (70026110)

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26. 岩塚明 (40184890)

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27. 松本和一郎 (40093314)

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28. 池部晃生 (00025280)

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29. 吉原英昭 (10182809)

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30. FUJIKI Akira (80027383)

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31. TANDAI Kouichi (90026732)

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32. 岩井斉良 (70026764)

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33. AMOU Masaki (60201901)

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34. KATSURADA Masanori (90224485)

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35. TARAMA Shigeo (90115882)

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36. UEKI Naomasa (80211069)

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37. ANDO Hiroshi (60292471)

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38. MORIOKA Tatsushi (80239631)

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39. 浅倉史興 (20140238)

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Hata Masayoshi 畑 政義

HATA Masayoshi 畑 政義

畑 正義 ハタ マサヨシ

畑 政義

Research Projects

Research Products

Co-Researchers

Analytic Study for Pisot and Salem numbersPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Research for rational approximation to transcendental numbersPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Analytical research for transcendental numbersPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

フラクタル理論と超越数論の組織的研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Pade type approximation and its application to the number theoryPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

有理近似および超越数の研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Principal Investigator

Project Period (FY)

Hata Masayoshi 畑政義

HATA Masayoshi 畑政義

畑正義ハタマサヨシ

畑政義