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Sunagawa Hideaki  砂川 秀明

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SUNAGAWA Hideaki  砂川 秀明

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Researcher Number 80375394
Other IDs
Affiliation (Current) 2025: 大阪公立大学, 大学院理学研究科, 教授
Affiliation (based on the past Project Information) *help 2022 – 2024: 大阪公立大学, 大学院理学研究科, 教授
2020 – 2021: 大阪市立大学, 大学院理学研究科, 教授
2016 – 2019: 大阪大学, 理学研究科, 准教授
2012 – 2015: 大阪大学, 理学(系)研究科(研究院), 准教授
2014: 大阪大学, 大学院理学研究科, 准教授 … More
2012: 大阪大学, 大学院・理学研究科, 准教授
2010 – 2011: 大阪大学, 理学研究科, 准教授
2010: 大阪大学, 大学院・理学研究科, 准教授
2008: Osaka University, 大学院・理学研究科, 准教授
2008: Osaka University, 大学院理学研究科, 准教授
2007: Osaka University, 大学院・理学研究科, 講師
2006: 筑波大学, 大学院数理物質科学研究科, 助手 Less
Review Section/Research Field
Principal Investigator
Mathematical analysis / Basic analysis / Basic Section 12020:Mathematical analysis-related
Except Principal Investigator
Basic analysis / Broad Section B / Mathematical analysis
Keywords
Principal Investigator
非線形シュレディンガー方程式 / 分散型方程式 / 双曲型方程式 / 非線形 / 漸近解析 / シュレディンガー方程式 / 微分型非線形シュレディンガー方程式 / 弱消散構造 / 零構造 / 高周波漸近解析 … More / 波動方程式 / クライン・ゴルドン方程式 / 弱零構造 / 弱い消散構造 / 非線形波動方程式 / 非線形消散 / 非線形消散構造 / ライフスパン / 非線形波動 / 消散構造 / 非線型シュレディンガー方程式 / 零条件 / 関数方程式 … More
Except Principal Investigator
変分解析 / 函数解析 / 漸近解析 / 調和解析 / 函数空間論 / 函数方程式 / 実解析 / 関数空間論 / 関数方程式 / 数学解析 / 関数方程式の大域理論 / 時間減衰評価 / 共鳴現象 / 分散型波動方程式 / 双線形形式 / 散乱問題 / クラインーゴルドン方程式系 / シュレデンガー方程式系 / 非線形分散型方程式系 / 散乱状態 / 波動作用素 / スケール不変 / Klein-Gordon / Schredinger / 臨界冪非線形項 / Klein-Gordon方程式系 / Schroedinger方程式系 / 修正波動作用素 / 臨界べき非線形項 / 漸近的振舞い / 分散型波動方程式系 / 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 / 陪特性帯 / 非実効果的双曲型 / 零陪特性帯 / Gevrey空間 / 適切性 / ハミルトン流 / 強双曲型作用素 / 複素数値相関数 / Gevrey適切性 / 零特性帯 / 初期値問題 / lifespan / 平滑化作用 / Fourier積分作用素 / ハミルトン写像 / 非線形波動 / 分散型方程式 / 超局所解析 Less
  • Research Projects

    (9 results)
  • Research Products

    (75 results)
  • Co-Researchers

    (19 People)
  •  Analysis of critical interactions in wave fields

    • Principal Investigator
      小澤 徹
    • Project Period (FY)
      2024 – 2028
    • Research Category
      Grant-in-Aid for Scientific Research (S)
    • Review Section
      Broad Section B
    • Research Institution
      Waseda University
  •  高周波漸近解析に基づいた非線形偏微分方程式の研究Principal Investigator

    • Principal Investigator
      砂川 秀明
    • Project Period (FY)
      2021 – 2025
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 12020:Mathematical analysis-related
    • Research Institution
      Osaka Metropolitan University
      Osaka City University
  •  Null structure and high frequency asymptotic analysis for nonlinear hyperbolic and dispersive equationsPrincipal Investigator

    • Principal Investigator
      Sunagawa Hideaki
    • Project Period (FY)
      2017 – 2021
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Mathematical analysis
    • Research Institution
      Osaka City University
      Osaka University
  •  High frequency asymptotic analysis for nonlinear partial differential equationsPrincipal Investigator

    • Principal Investigator
      Sunagawa Hideaki
    • Project Period (FY)
      2013 – 2016
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Mathematical analysis
    • Research Institution
      Osaka University
  •  Study on oscillation and singularity in mass resonance

    • Principal Investigator
      Tohru Ozawa
    • Project Period (FY)
      2013 – 2015
    • Research Category
      Grant-in-Aid for Challenging Exploratory Research
    • Research Field
      Mathematical analysis
    • Research Institution
      Waseda University
  •  Asymptotic analysis for systems of dispersive equations

    • Principal Investigator
      HAYASHI Nakao
    • Project Period (FY)
      2012 – 2014
    • Research Category
      Grant-in-Aid for Challenging Exploratory Research
    • Research Field
      Basic analysis
    • Research Institution
      Osaka University
  •  High frequency asymptotic analysis for nonlinear PDEs of hyperbolic and dispersive typePrincipal Investigator

    • Principal Investigator
      SUNAGAWA Hideaki
    • Project Period (FY)
      2010 – 2012
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Basic analysis
    • Research Institution
      Osaka University
  •  Phase Space Analysis of Partial Differential Equations

    • 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
  •  Studies on the null condition for nonlinear hyperbolic and dispersive equationsPrincipal Investigator

    • Principal Investigator
      SUNAGAWA Hideaki
    • Project Period (FY)
      2006 – 2008
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Basic analysis
    • Research Institution
      Osaka University
      University of Tsukuba

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

All Journal Article Presentation

  • [Journal Article] Recent advances on Schrodinger equations with dissipative nonlinearities2024

    • Author(s)
      Chunhua Li, Yoshinori Nishii, Yuji Sagawa, Hideaki Sunagawa
    • Journal Title

      Advanced Studies in Pure Mathematics

      Volume: 未定

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K03314
  • [Journal Article] Large time asymptotics for a cubic nonlinear Schrodinger system in one space dimension, II2021

    • Author(s)
      Chunhua Li, Yoshinori Nishii, Yuji Sagawa, Hideaki Sunagawa
    • Journal Title

      Tokyo Journal of Mathematics

      Volume: - Issue: 2

    • DOI

      10.3836/tjm/1502179340

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Journal Article] On the derivative nonlinear Schrodinger equation with weakly dissipative structure2021

    • Author(s)
      Chunhua Li, Yoshinori Nishii, Yuji Sagawa, Hideaki Sunagawa
    • Journal Title

      Journal of Evolution Equations

      Volume: - Issue: 2 Pages: 1541-1550

    • DOI

      10.1007/s00028-020-00634-6

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Journal Article] Energy decay for small solutions to semilinear wave equations with weakly dissipative structure2021

    • Author(s)
      Yoshinori Nishii, Hideaki Sunagawa, Hiroki Terashita
    • Journal Title

      Journal of the Mathematical Society of Japan

      Volume: 73 Issue: 3 Pages: 767-779

    • DOI

      10.2969/jmsj/84148414

    • NAID

      130008067986

    • ISSN
      0025-5645, 1881-1167, 1881-2333
    • Language
      English
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Journal Article] Large time asymptotics for a cubic nonlinear Schrodinger system in one space dimension2020

    • Author(s)
      C.Li, Y.Nishii, Y.Sagawa, H.Sunagawa
    • Journal Title

      Funkcialaj Ekvacioj

      Volume: -

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Journal Article] Small data global existence for a class of quadratic derivative nonlinear Schrodinger systems in two space dimensions2020

    • Author(s)
      Sakoda Daisuke、Sunagawa Hideaki
    • Journal Title

      Journal of Differential Equations

      Volume: 268 Issue: 4 Pages: 1722-1749

    • DOI

      10.1016/j.jde.2019.09.032

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Journal Article] On Agemi-type structural conditions for a system of semilinear wave equations2020

    • Author(s)
      Yoshinori Nishii, Hideaki Sunagawa
    • Journal Title

      Journal of Hyperbolic Differential Equations

      Volume: 17 Issue: 03 Pages: 459-473

    • DOI

      10.1142/s0219891620500125

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Journal Article] A sharp lower bound for the lifespan of small solutions to the Schrodinger equation with a subcritical power nonlinearity2018

    • Author(s)
      Yuji Sagawa, Hideaki Sunagawa, Shunsuke Yasuda
    • Journal Title

      Differential and Integral Equations

      Volume: ー

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Journal Article] Remarks on derivative nonlinear Schodinger systems with multiple masses2017

    • Author(s)
      Chunhua Li, Hideaki Sunagawa
    • Journal Title

      Proceedings of the conference "Asymptotic Analysis for Nonlinear Dispersive and Wave Equations"

      Volume: 未定

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Journal Article] On Schrodinger systems with cubic dissipative nonlinearities of derivative type2016

    • Author(s)
      Chunhua Li, Hideaki Sunagawa
    • Journal Title

      Nonlinearity

      Volume: 29 Issue: 5 Pages: 1537-1563

    • DOI

      10.1088/0951-7715/29/5/1537

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Journal Article] The lifespan of small solutions to cubic derivative nonlinear Schrodinger equations in one space dimension2016

    • Author(s)
      Yuji Sagawa, Hideaki Sunagawa
    • Journal Title

      Discrete and Continuous Dynamical Systems Ser.A

      Volume: 未定

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Journal Article] Energy decay for systems of semilinear wave equations with dissipative structure in two space dimensions2015

    • Author(s)
      Soichiro Katayama, Akitaka Matsumura, Hideaki Sunagawa
    • Journal Title

      Nonlinear Differential Equations and Applications NoDEA

      Volume: 未定 Issue: 4 Pages: 601-628

    • DOI

      10.1007/s00030-014-0297-7

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-23340036, KAKENHI-PROJECT-25400161, KAKENHI-PROJECT-22340027, KAKENHI-PROJECT-24340024
  • [Journal Article] Semilinear hyperbolic systems violating the null condition2015

    • Author(s)
      Soichiro Katayama, Toshiaki Matoba and Hideaki Sunagawa
    • Journal Title

      Mathematische Annalen

      Volume: 361 (1-2) Issue: 1-2 Pages: 275-312

    • DOI

      10.1007/s00208-014-1071-1

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-24340024, KAKENHI-PROJECT-25400161
  • [Journal Article] Null structure in a system of quadratic derivative Schroedinger equations2014

    • Author(s)
      Masahiro Ikeda, Soichiro Katayama and Hideaki Sunagawa
    • Journal Title

      Annales Henri Poincare

      Volume: 印刷中(電子出版済) Issue: 2 Pages: 535-567

    • DOI

      10.1007/s00023-014-0316-6

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540241, KAKENHI-PROJECT-25400161
  • [Journal Article] Remarks on decay of small solutions to systems of Klein-Gordon equations with dissipative nonlinearities2014

    • Author(s)
      Donghyun Kim, Hideaki Sunagawa
    • Journal Title

      Nonlinear Analysis: Theory, Methods & Applications

      Volume: 97 Pages: 94-105

    • DOI

      10.1016/j.na.2013.11.025

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Journal Article] A remark on decay rates of solutions for a system of quadratic nonlinear Schrodinger equations in 2D2014

    • Author(s)
      Soichiro Katayama, Chunhua Li, Hideaki Sunagawa
    • Journal Title

      Differential and Integral Equations

      Volume: 27 Pages: 301-312

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Journal Article] Small data blow-up for a system of nonlinear Schrodinger equations2013

    • Author(s)
      T. Ozawa and H. Sunagawa
    • Journal Title

      Journal of Mathematical Analysis and Application s

      Volume: vol.399 Pages: 147-155

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Journal Article] Small data blow-up for a system of nonlinear Schrodinger equations2013

    • Author(s)
      T. Ozawa, H. Sunagawa
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 399 Pages: 147-155

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25610027
  • [Journal Article] Small data blow-up for a system of nonlinear Schrodinger equations2013

    • Author(s)
      Tohru Ozawa, Hideaki Sunagawa
    • Journal Title

      Journal of Mathematical Analysis and Applications

      Volume: 399 Issue: 1 Pages: 147-155

    • DOI

      10.1016/j.jmaa.2012.10.003

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22740089, KAKENHI-PROJECT-24224004
  • [Journal Article] A note on the null condition for quadratic nonlinear Klein-Gord on systems in two space dimensions2012

    • Author(s)
      片山聡一郎、小澤徹、砂川秀明
    • Journal Title

      Communications on Pure and Applied Mathematics

      Volume: 65 Issue: 9 Pages: 1285-1302

    • DOI

      10.1002/cpa.21392

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22740089, KAKENHI-PROJECT-24224004
  • [Journal Article] The energy decay and asymptotics for a class of semilinear wave equations in twospace dimensions2012

    • Author(s)
      S. Katayama,D. Murotani and H.Sunagawa
    • Journal Title

      Journal of Evolution Equations

      Volume: vol.12 Pages: 891-916

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Journal Article] A remark on the algebraic normal form method applied tothe Dirac-Klein- Gordon system in twospace dimensions2012

    • Author(s)
      M. Ikeda, A. Shimomura and H.Sunagawa
    • Journal Title

      RIMS Kokyuroku Bessatsu

      Volume: vol.B33 Pages: 87-96

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Journal Article] A remark on the algebraic normal form method applied to the Dirac-Klein-Gordon system in two space dimensions2012

    • Author(s)
      池田正弘、下村明洋、砂川秀明
    • Journal Title

      数理解析研究所講究録別冊

      Volume: (掲載決定)

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Journal Article] A note on the null condition for quadratic nonlinear Klein-Gordon systems in twospace dimensions2012

    • Author(s)
      S. Katayama, T. Ozawa and H. Sunagawa
    • Journal Title

      Communications on Pure and Applied Mathematics

      Volume: vol.65 Pages: 1285-1302

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Journal Article] The energy decay and asymptotics for a class of semilinear wave equations in two space dimensions2012

    • Author(s)
      Soichiro Katayama, Daisuke Murotani, Hideaki Sunagawa
    • Journal Title

      Journal of Evolution Equations

      Volume: 12 Issue: 4 Pages: 891-916

    • DOI

      10.1007/s00028-012-0160-4

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22740089, KAKENHI-PROJECT-23540241
  • [Journal Article] Global small amplitude solutions for twodimensional nonlinear Klein-Gordon systems in the presence of mass resonance2011

    • Author(s)
      Y. Kawahara and H. Sunagawa
    • Journal Title

      Journal of Differential Equations

      Volume: vol.251 Pages: 2549-2567

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Journal Article] Global small amplitude solutions for two-dimensional nonlinear Klein-Gordon systems in the presence of mass resonance2011

    • Author(s)
      川原雄一朗、砂川秀明
    • Journal Title

      Journal of Differential Equations

      Volume: 251 Issue: 9 Pages: 2549-2567

    • DOI

      10.1016/j.jde.2011.04.001

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Journal Article] On the Schrodinger equation with dissipative nonlinearities of derivative type2008

    • Author(s)
      N. Hayashi, P. I. Naumkin, H. Sunagawa
    • Journal Title

      SIAM J. Math. Anal 40

      Pages: 278-291

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740066
  • [Journal Article] On the Schrodinger equation with dissipative nonlinearities of derivative type2008

    • Author(s)
      N.Hayshi, P.I.Naumkin, H.Sunagawa
    • Journal Title

      SIAM J.Math.Anal. vol 40

      Pages: 278-291

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] The lifespan of solutions to nonlinear Schrodinger and Klein-Gordon equation2008

    • Author(s)
      H.Sunagawa
    • Journal Title

      Hokkaido Math.J. vol 37

      Pages: 825-838

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] The lifespan of solutions to nonlinear Schrodinger and Klein-Gordon equations2008

    • Author(s)
      H. Sunagawa
    • Journal Title

      Hokkaido Math. J. vol.37, no.4

      Pages: 825-838

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740066
  • [Journal Article] On the Schrodinger equation with dissipative nonlinearities of derivative type2008

    • Author(s)
      N. Hayashi, P. I. Naumkin, H. Sunagawa
    • Journal Title

      SIAM J. Math. Anal. vol.40, no.1

      Pages: 278-291

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740066
  • [Journal Article] The lifespan of solutions to nonlinear Schrodinger and Klein-Gordon equations2008

    • Author(s)
      H. Sunagawa
    • Journal Title

      Hokkaido Math. J 37

      Pages: 825-838

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740066
  • [Journal Article] 非線形Klein-Gordon方程式の解の長時間挙動について2007

    • Author(s)
      H. Sunagawa
    • Journal Title

      数学 59

      Pages: 367-379

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19204013
  • [Journal Article] 非線型Klein-Gordon方程式の解の長時間挙動について2007

    • Author(s)
      砂川 秀明
    • Journal Title

      数学 59

      Pages: 367-379

    • NAID

      10019989612

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740066
  • [Journal Article] 非線型Klein-Gordon方程式の解の長時間挙動について2007

    • Author(s)
      砂川秀明
    • Journal Title

      日本数学会「数学」 第59巻4号

      Pages: 367-379

    • NAID

      10019989612

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740066
  • [Journal Article] Remarks on global behavior of solutions to nonlinear Schrodinger equations2006

    • Author(s)
      Y. Kawahara, H. Sunagawa
    • Journal Title

      Proc. Japan Acad. Ser. A vol.82, no.8

      Pages: 117-122

    • NAID

      40015182012

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740066
  • [Journal Article] Remarks on global behavior of solutions to nonlinear Schrodinger equations2006

    • Author(s)
      Y.Kawahara, H.Sunagawa
    • Journal Title

      Proceedings of the Japan Academy, Series A 82巻8号

      Pages: 117-122

    • NAID

      40015182012

    • Data Source
      KAKENHI-PROJECT-18740066
  • [Presentation] Upper and lower L^2-decay bounds for a class of derivative nonlinear Schrodinger equations2022

    • Author(s)
      Hideaki Sunagawa
    • Organizer
      RIMS研究集会「流体と気体の数学解析」
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K03314
  • [Presentation] Upper and lower L^2-decay bounds for a class of derivative nonlinear Schrodinger equations2022

    • Author(s)
      Hideaki Sunagawa
    • Organizer
      Mathematical Analysis of Nonlinear Dispersive and Wave Equations
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K03314
  • [Presentation] On the derivative nonlinear Schrodinger equation with weakly dissipative structure2021

    • Author(s)
      Chunhua Li, 西井良徳、佐川侑司、砂川秀明
    • Organizer
      日本数学会2021年度秋季総合分科会
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Presentation] On the derivative nonlinear Schrodinger equation with weakly dissipative structure2021

    • Author(s)
      Chunhua Li, 西井良徳、佐川侑司、砂川秀明
    • Organizer
      日本数学会2021年度秋季総合分科会
    • Data Source
      KAKENHI-PROJECT-21K03314
  • [Presentation] Energy decay for small solutions to semilinear wave equations with weakly dissipative structure2020

    • Author(s)
      西井良徳、砂川秀明、寺下拓貴
    • Organizer
      日本数学会2020年度秋季総合分科会
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Presentation] Large time asymptotics for a cubic nonlinear Schrodinger system in one space dimension2020

    • Author(s)
      Chunhua Li 西井 良徳、佐川 侑司、砂川 秀明
    • Organizer
      日本数学会2020年度年会
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Presentation] Large time asymptotics for a cubic nonlinear Schrodinger system in one space dimension, II2020

    • Author(s)
      Chunhua Li、西井良徳、佐川侑司、砂川秀明
    • Organizer
      日本数学会2020年度秋季総合分科会
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Presentation] 半線形波動方程式系に対するAgemi型の構造条件について2019

    • Author(s)
      西井 良徳、砂川 秀明
    • Organizer
      日本数学会2019年度秋季総合分科会
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Presentation] Small data global existence for a quadratic derivative nonlinear Schrodinger system in two space dimensions2018

    • Author(s)
      迫田大輔、砂川秀明
    • Organizer
      日本数学会2018年度年会
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Presentation] Small data global existence for a class of quadratic derivative nonlinear Schrodinger systems in two space dimensions2018

    • Author(s)
      Hideaki Sunagawa
    • Organizer
      RIMS workshop "Harmonic analysis and nonlinear partial differential equations"
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Presentation] Small data global existence for a class of quadratic derivative nonlinear Schrodinger systems in two space dimensions2018

    • Author(s)
      Hideaki Sunagawa
    • Organizer
      Seminar on PDE with Dissipative Structure 2018
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Presentation] Remarks on derivative nonlinear Schrodinger systems with multiple masses2017

    • Author(s)
      Chunhua Li, Hideaki Sunagawa
    • Organizer
      日本数学会2016年度年会
    • Place of Presentation
      首都大学東京
    • Year and Date
      2017-03-27
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Presentation] On derivative nonlinear Schrodinger systems with multiple masses2017

    • Author(s)
      Hideaki Sunagawa
    • Organizer
      RIMS workshop "Nonlinear Wave and Dispersive Equations"
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Presentation] A sharp lower bound for the lifespan of small solutions to the Schrodinger equation with a subcritical power nonlinearity2017

    • Author(s)
      佐川侑司、砂川秀明、保田舜介
    • Organizer
      日本数学会2017年度秋季総合分科会
    • Data Source
      KAKENHI-PROJECT-17K05322
  • [Presentation] The lifespan of small solutions to cubic derivative nonlinear Schrodinger equations in one space dimension2016

    • Author(s)
      佐川 侑司、砂川 秀明
    • Organizer
      日本数学会2016年度年会
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Year and Date
      2016-03-19
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Presentation] The lifespan of small solutions to cubic derivative nonlinear Schrodinger equations in one space dimension2016

    • Author(s)
      Hideaki Sunagawa
    • Organizer
      Nonlinear Wave and Dispersive Equations, Kyoto 2016
    • Place of Presentation
      京都大学
    • Year and Date
      2016-09-06
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Presentation] On Schrodinger systems with cubic dissipative nonlinearities of derivative type2015

    • Author(s)
      Hideaki Sunagawa
    • Organizer
      Workshop on partial differential equations and numerical analysis
    • Place of Presentation
      延辺大学(中国、延吉)
    • Year and Date
      2015-07-07
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Presentation] Agemi-type structural condition for systems of nonlinear wave equations2015

    • Author(s)
      Hideaki Sunagawa
    • Organizer
      第32回九州における偏微分方程式研究集会
    • Place of Presentation
      九州大学西新プラザ (福岡市早良区)
    • Year and Date
      2015-01-30
    • Invited
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Presentation] 微分型の非線形消散項を伴うシュレディンガー方程式系について2015

    • Author(s)
      砂川 秀明、Chunhua Li
    • Organizer
      日本数学会2015年度秋季総合分科会
    • Place of Presentation
      京都産業大学(京都市左京区)
    • Year and Date
      2015-09-15
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Presentation] Null structure in derivative nonlinear Schrodinger systems2014

    • Author(s)
      Hideaki Sunagawa
    • Organizer
      1st Partial Differential Equations Seminar in Yanbian University
    • Place of Presentation
      延辺大学 (中国、延吉市)
    • Year and Date
      2014-09-17
    • Invited
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Presentation] 微分型非線形シュレディンガー方程式系の零構造について2012

    • Author(s)
      砂川秀明
    • Organizer
      第10回浜松編微分方程式研究集会
    • Place of Presentation
      静岡大学
    • Year and Date
      2012-12-19
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Presentation] Small data blow-up for NLS systems2012

    • Author(s)
      H.Sunagawa
    • Organizer
      China-Japan Joint Meeting on PDE at Yanji
    • Place of Presentation
      延辺大学(中国)
    • Year and Date
      2012-09-10
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Presentation] Quadratic nonlinear Schrodinger systems in the presence of mass resonance2012

    • Author(s)
      砂川秀明
    • Organizer
      微分方程式の総合的研究
    • Place of Presentation
      京都大学
    • Year and Date
      2012-12-15
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Presentation] On quadratic nonlinear Klein-Gordon systems in two space dimensions2011

    • Author(s)
      砂川秀明
    • Organizer
      調和解析と非線形偏微分方程式
    • Place of Presentation
      京都大学数理解析研究所(招待講演)
    • Year and Date
      2011-07-04
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Presentation] 「On quadratic nonlinear Klein-Gordon systems in twospace dimensions2011

    • Author(s)
      H.Sunagawa
    • Organizer
      調和解析と非線形偏微分方程式
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2011-07-04
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Presentation] On quadratic nonlinear Klein-Gordon systems in twospace dimensions2011

    • Author(s)
      H.Sunagawa
    • Organizer
      4th MSJ-SI: Nonlinear dynamics in partial differential equations
    • Place of Presentation
      九州大学
    • Year and Date
      2011-09-18
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Presentation] On quadratic nonlinear Klein-Gordon systems in two space dimensions2011

    • Author(s)
      砂川秀明
    • Organizer
      The 4th MSJ-SI "Nonlinear Dynamics in Partial Differential Equations"
    • Place of Presentation
      九州大学医学部百年講堂(招待講演)
    • Year and Date
      2011-09-18
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Presentation] Global small amplitude solutions for two-dimensional nonlinear Klein-Gordon systems in the presence of mass resonance2010

    • Author(s)
      H.Sunagawa
    • Organizer
      Joint workshop on PDE at Jinhua
    • Place of Presentation
      浙江師範大学(中国)
    • Year and Date
      2010-09-27
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Presentation] Global small amplitude solutions for two dimensionlal nonlinear Klein-Gordon systems in the presence of mass resonance2010

    • Author(s)
      砂川秀明
    • Organizer
      Joint Workshop on PDE at Jinhua
    • Place of Presentation
      浙江師範大学(中国)
    • Year and Date
      2010-09-27
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Presentation] 双曲型および分散型方程式の非線型摂動について2008

    • Author(s)
      砂川秀明
    • Organizer
      奈良偏微分方程式研究会
    • Place of Presentation
      奈良女子大学
    • Year and Date
      2008-03-20
    • Data Source
      KAKENHI-PROJECT-18740066
  • [Presentation] On the Schrodinger equation with dissipative nonlinearities of derivative type2007

    • Author(s)
      H. Sunagawa
    • Organizer
      International conference on nonlinear wave equations
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-08-27
    • Data Source
      KAKENHI-PROJECT-18740066
  • [Presentation] On cubic NLS and NLKG with dissipative structure2007

    • Author(s)
      H. Sunagawa
    • Organizer
      JAMI conference on nonlinear dispersive equations
    • Place of Presentation
      ジョンズ ホプキンス大学
    • Year and Date
      2007-03-17
    • Data Source
      KAKENHI-PROJECT-18740066
  • [Presentation] On the Schroedinger equation with dissipative nonlinearities of derivative type2007

    • Author(s)
      砂川 秀明
    • Organizer
      Nonlinear Wave Equations
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-08-27
    • Data Source
      KAKENHI-PROJECT-18740066
  • [Presentation] Lifespanの漸近評価から見た非線型Schrodinger方程式とその周辺2006

    • Author(s)
      砂川秀明
    • Organizer
      日本数学会2006 年度秋季総合分科会(函数方程式論分科会特別講演)
    • Place of Presentation
      大阪市立大学
    • Year and Date
      2006-09-22
    • Data Source
      KAKENHI-PROJECT-18740066
  • [Presentation] Small data blow-up for NLS systems

    • Author(s)
      Hideaki Sunagawa
    • Organizer
      China-Japan Joint Meeting on PDE at Yanji
    • Place of Presentation
      Yanbian University
    • Invited
    • Data Source
      KAKENHI-PROJECT-22740089
  • [Presentation] Null structure in a system of quadratic derivative nonlinear Schrodinger equations

    • Author(s)
      Hideaki Sunagawa
    • Organizer
      第3回弘前非線形方程式研究会
    • Place of Presentation
      弘前大学
    • Invited
    • Data Source
      KAKENHI-PROJECT-25400161
  • [Presentation] Null structure in a system of quadratic derivative nonlinear Schrodinger equations

    • Author(s)
      Hideaki Sunagawa
    • Organizer
      Mexico-Japan joint meeting on PDE at Morelia
    • Place of Presentation
      メキシコ国立自治大学
    • Invited
    • Data Source
      KAKENHI-PROJECT-25400161
  • 1.  HAYASHI Nakao (30173016)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 2.  SUGIMOTO Mitsuru (60196756)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 3.  Tohru Ozawa (70204196)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 1 results
  • 4.  TANAKA Kazunaga (20188288)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 5.  KATAYAMA Soichiro (70283942)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 2 results
  • 6.  NISHITANI Tatsuo (80127117)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 7.  DOI Shinichi (00243006)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 8.  KUBO Hideo (50283346)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 9.  TAKUWA Hideki (80403111)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 10.  UMEDA Tomio (20160319)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 11.  IWASAKI Chisato (30028261)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 12.  HOSHIRO Toshihiko (40211544)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 13.  FUJIIE SETSURO (00238536)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 14.  TOMITA Naohito (10437337)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 15.  MACHIHARA Shuji (20346373)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 16.  BEZ NEAL (30729843)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 17.  藤原 和将 (40868262)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 18.  林 雅行 (60967850)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 19.  松村 昭孝
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results

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