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Ikehata Ryo  池畠 良

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IKEHATA Ryo  池畠 良

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Researcher Number 10249758
Other IDs
Affiliation (Current) 2025: 広島大学, 人間社会科学研究科(教), 教授
Affiliation (based on the past Project Information) *help 2020 – 2023: 広島大学, 人間社会科学研究科(教), 教授
2016 – 2019: 広島大学, 教育学研究科, 教授
2012 – 2015: 広島大学, 教育学研究科(研究院), 教授
2014: 広島大学, 大学院教育学研究科, 教授
2010 – 2012: 広島大学, 教育学研究科, 教授 … More
2010 – 2011: 広島大学, 大学院・教育学研究科, 教授
2009: 広島大学, 教育学研究科, 准教授
2007 – 2009: Hiroshima University, 大学院・教育学研究科, 准教授
2006: Hiroshima University, Graduate School of Education, Associate Professor, 大学院教育学研究科, 助教授
2001 – 2005: 広島大学, 大学院・教育学研究科, 助教授
2004: 広島大学, 大学院・教育研究科, 助教授
2000: Hiroshima Univ., Faculty of Education, Associate Professor, 教育学部, 助教授
1998 – 1999: Hiroshima University, Faculty of School Education Associate Professor, 学校教育学部, 助教授
1996 – 1998: 広島大学, 学校教育学部, 講師
1995: 東京工業高等専門学校, 一般科目, 講師 Less
Review Section/Research Field
Principal Investigator
Basic analysis / Basic Section 12020:Mathematical analysis-related / Mathematical analysis / Global analysis / Basic analysis
Except Principal Investigator
Basic analysis / Basic analysis / General mathematics (including Probability theory/Statistical mathematics) / 解析学 / Geometry / 教科教育
Keywords
Principal Investigator
波動方程式 / エネルギー減衰 / エネルギー / 摩擦項 / 初期値問題 / 最良減衰率 / 非有界領域 / 解の漸近形 / 減衰構造 / 消散項 … More / 減衰評価 / Fourier変換 / 漸近形 / エネルギー法 / Fourier解析 / 減衰率 / 局所エネルギー / 臨界指数 / 外部問題 / 非局所型摩擦項 / 正則性損失 / 回転慣性項 / 対数型非局所摩擦項 / 全エネルギー / 非有界摩擦係数 / 高次方程式 / 正則性 / 対数型Laplacian / 特異極限問題 / 時間増大評価 / 最良評価式 / plate方程式 / 最良評価 / Navier-Stokes方程式 / 退化する摩擦係数 / 藤田指数 / 漸近展開 / 粘性項 / 微分損失構造 / 粘性効果 / 摩擦効果 / 藤田臨界指数 / 高周波 / 下からの評価 / 閾値 / 最適性 / 主要項 / 回転慣性力 / 構造的摩擦項 / 最適評価 / asymptotics of solutions / decay / Energy / exterior domain / Wave equation / 解の挙動 / 減衰 / 外部領域 / 臨界減衰 / 変数系数 / 拡散現象 / 強い摩擦項 / 分数巾 / 国際情報交換 / 低周波数帯 / Haraux-Komornikの不等式 / 発展方程式 / 拡散構造 / フーリエ変換 / マルチプライアー法 / 爆発 / 大域存在 / 摩擦 / 有限伝播速度 / ポテンシャル / 非線形問題 / 劣臨界 / 変数係数 / 摩擦係数 / 関数方程式 / Palais-Smale条件 / 安定・非安定集合 / 半線形放物形方程式 / パレースメール条件 / 半線形方物形方程式 … More
Except Principal Investigator
Lax-Phillips / 自己相似解 / 時間大域解 / 散乱理論 / scattering kernel / Wilcox / Rayleigh波 / 表面波 / Stationary solutions / Blowup solutions / Global solutions in time / 定常解 / 解の爆発 / GD / BIBD / 消散型波動方程式 / 非線形偏微分方程式 / 圧縮性Navier-Stokes方程式 / 圧縮性流体 / 関数方程式 / 波動方程式 / Rayleigh wave / scattering theory / surface waves / wave equations / Rayleigh waves / Scattering theory / Surface waves / Lax-Phillps / Asymptotic profiles of solutions / Convection-diffusion equations / 解の減衰 / 解の漸近形 / 非線形移流拡散方程式 / Self-similar solutions / Advection-diffusion equations / Nonlinear partial differential equations / 解の特異性 / 解の大域的存在 / 放物型方程式系 / 移流拡散方程式 / Robustness / Efficiency / Nested Design / Block Design / Design of Experiment / 構成法 / 巣型計画 / 頑健性 / 効率 / 素型計画 / ブロック計画 / 実験計画法 / Sobolev functions / hyperbolic equations / two parameter problems / elliptic equations / locations of blow up points / global solutions / Self-similar solution / Keller-Segel system / 関数空関 / Keller-Segel方程式 / 爆発点 / 関数空間 / 双曲型方程式 / 固有値問題 / 楕円型方程式 / 大域解 / 爆発 / Keller-Segel方程式系 / Navier-Stokes / Stokes方程式 / Navier-Stokes方程式 / 線形粘性弾性体方程式 / 非線形波動方程式 / Stokes 方程式 / Navier-Stokes 方程式 / 消散的波動方程式 / Euler-Maxwell方程式系 / 対称双曲系 / 粘弾性体方程式系 / 済散型波動方程式 / Euler-Maxwell 方程式系 / Timoshenko系 / 拡散波 / 調和解析 / Euler-Poisson 系 / Timoshenko 系 / 緩和的双曲系 / エネルギー法 / 減衰評価 / 安定性解析 / 消散構造 / 偏微分方程式 / 漸近解析 / 角を持つ領域 / 弾性表面波 / 球面空間形 / 等スペクトル問題 / スピン構造 / Dirac作用素 / コンピュータ・グラフィックス / 有限要素法 / 差分法 / 数値解 / 解析解 / ベッセル関数 / フーリエ級数 Less
  • Research Projects

    (18 results)
  • Research Products

    (151 results)
  • Co-Researchers

    (30 People)
  •  Analysis on decay structure of evolution equations arising in Mathematical physicsPrincipal Investigator

    • Principal Investigator
      池畠 良
    • Project Period (FY)
      2020 – 2024
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 12020:Mathematical analysis-related
    • Research Institution
      Hiroshima University
  •  Asymptotic profile of solutions for some partial differential equations with dissipative structure and its applicationPrincipal Investigator

    • Principal Investigator
      Ikehata Ryo
    • Project Period (FY)
      2015 – 2019
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Mathematical analysis
    • Research Institution
      Hiroshima University
  •  Stability analysis for nonlinear partial differential equations

    • Principal Investigator
      KAWASHIMA Shuichi
    • Project Period (FY)
      2010 – 2014
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Basic analysis
    • Research Institution
      Kyushu University
  •  Energy decay for hyperbolic partial differential equations with variable coefficients and its related topicPrincipal Investigator

    • Principal Investigator
      IKEHATA Ryo
    • Project Period (FY)
      2010 – 2013
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Hiroshima University
  •  Structure of the solutions to the system ofcompressible fluid

    • Principal Investigator
      KOBAYASHI Takayuki
    • Project Period (FY)
      2010 – 2012
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Saga University
  •  Method of analysis for scattering of elastic surface waves on boundaries with corners

    • Principal Investigator
      KAWASHITA Mishio
    • Project Period (FY)
      2007 – 2009
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Hiroshima University
  •  Energy estimates for hyperbolic equations in unbounded domains and their applicationsPrincipal Investigator

    • Principal Investigator
      IKEHATA Ryo
    • Project Period (FY)
      2007 – 2009
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Hiroshima University
  •  Asymptotic structure of the solutions to the system of compressible fluid

    • Principal Investigator
      KOBAYASHI Takayuki
    • Project Period (FY)
      2007 – 2009
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Saga University
  •  Analysis of various amounts charactering scattering phenomena for the elastic surface waves

    • Principal Investigator
      KAWASHITA Mishio
    • Project Period (FY)
      2004 – 2006
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Hiroshima University
  •  Scattering theory for the elastic surface waves

    • Principal Investigator
      KAWASHITA Mishio
    • Project Period (FY)
      2002 – 2003
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      HIROSHIMA UNIVERSITY
  •  A study on asymptotic behavior of solutions for evolution equationsPrincipal Investigator

    • Principal Investigator
      IKEHATA Ryo
    • Project Period (FY)
      2002 – 2004
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Global analysis
    • Research Institution
      HIROSHIMA UNIVERSITY
  •  Asymptotic Profiles of Solutions to Nonlinear Convection-Diffusion Equations

    • Principal Investigator
      NAGAI Toshitaka
    • Project Period (FY)
      2001 – 2002
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      HIROSHIMA UNIVERSITY
  •  Analysis on Singularities of Solutions to Nonlinear Partial Differential Equations

    • Principal Investigator
      NAGAI Toshitaka
    • Project Period (FY)
      1999 – 2000
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Basic analysis
    • Research Institution
      Hiroshima University
  •  非線形発展方程式と安定非安定集合Principal Investigator

    • Principal Investigator
      池畠 良
    • Project Period (FY)
      1998 – 1999
    • Research Category
      Grant-in-Aid for Encouragement of Young Scientists (A)
    • Research Field
      Basic analysis
    • Research Institution
      Hiroshima University
  •  Structure of solutions to the differential equations arising in natural phenomina

    • Principal Investigator
      YOSHIDA Kiyoshi
    • Project Period (FY)
      1997 – 1998
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      解析学
    • Research Institution
      HIROSHIMA UNIVERSITY
  •  Robustness of Statistical Block Designs and Their Constructions

    • Principal Investigator
      KAGEYAMA Ssmpei
    • Project Period (FY)
      1997 – 1998
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      General mathematics (including Probability theory/Statistical mathematics)
    • Research Institution
      Hiroshima University
  •  スペクトル幾何学

    • Principal Investigator
      池田 章
    • Project Period (FY)
      1996
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Geometry
    • Research Institution
      Hiroshima University
  •  解析学教育法における数値解析とコンピュータの活用法

    • Principal Investigator
      中里 肇
    • Project Period (FY)
      1995
    • Research Category
      Grant-in-Aid for Developmental Scientific Research (B)
    • Research Field
      教科教育
    • Research Institution
      Tokyo National College of Technology

All 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 Other

All Journal Article Presentation

  • [Journal Article] Asymptotic behaviors for Blackstock's model of thermoviscous flow2023

    • Author(s)
      Wenhui Chen, Ryo Ikehata and Alessandro Palmieri
    • Journal Title

      Indiana University Mathematics J.

      Volume: 72 Pages: 489-552

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] Optimal large-time estimates and singular limits for thermoelastic plate equations with the Fourier law2023

    • Author(s)
      Wenhui Chen and Ryo Ikehata
    • Journal Title

      Math. Meth. Appl. Sci.

      Volume: 46 Issue: 14 Pages: 14841-14866

    • DOI

      10.1002/mma.9349

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] Decay properties and asymptotic behaviors for a wave equation with general strong damping2023

    • Author(s)
      Wenhui Chen and Ryo Ikehata
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 519 Issue: 1 Pages: 126765-126765

    • DOI

      10.1016/j.jmaa.2022.126765

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] L2-blowup estimates of the wave equation and its application to local energy decay2023

    • Author(s)
      Ryo Ikehata
    • Journal Title

      J. Hyperbolic Differ. Equ.

      Volume: 20 Issue: 01 Pages: 259-275

    • DOI

      10.1142/s021989162350008x

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] Singular limit problem of abstract second order evolution equations2023

    • Author(s)
      Ryo Ikehata and Motohiro Sobajima
    • Journal Title

      Hokkaido Math. J.

      Volume: 52 Issue: 1 Pages: 129-148

    • DOI

      10.14492/hokmj/2021-504

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] A note on local energy decay results for wave equations with a potential2023

    • Author(s)
      Ryo Ikehata
    • Journal Title

      Asymptotic Anal.

      Volume: 134 Issue: 1-2 Pages: 281-295

    • DOI

      10.3233/asy-231835

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] Double diffusion structure of logarithmically damped wave equations with a small parameter2022

    • Author(s)
      Ruy Coimbra Charao, Alessandra Piske, Ryo Ikehata
    • Journal Title

      J. Differential Equations

      Volume: 311 Pages: 188-228

    • DOI

      10.1016/j.jde.2021.12.010

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] A dissipative logarithmic-type evolution equation: Asymptotic profile and optimal estimates2022

    • Author(s)
      Ruy Coimbra Charao, Alessandra Piske, Ryo Ikehata
    • Journal Title

      J. Mathematical Analysis and Applications

      Volume: 506 Issue: 1 Pages: 125587-125587

    • DOI

      10.1016/j.jmaa.2021.125587

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] A dissipative logarithmic-Laplacian type of plate equation: Asymptotic profile and decay rates2022

    • Author(s)
      Ruy Coimbra Charao, Alessandra Piske, Ryo Ikehata
    • Journal Title

      Discrete and Continuous Dynamical Systems

      Volume: 4 Issue: 5 Pages: 2215-2255

    • DOI

      10.3934/dcds.2021189

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] The Cauchy proble for the Moore-Gibson-Thompson equation in the dissipative case2021

    • Author(s)
      Wenhui Chen, Ryo Ikehata
    • Journal Title

      J. Differential Equations

      Volume: 292 Pages: 176-219

    • DOI

      10.1016/j.jde.2021.05.011

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] Asymptotic profiles for a wave equation with parameter-dependent logarithmic damping2021

    • Author(s)
      Ruy Coimbra Charao, Marcello D'Abbicco, Ryo Ikehata
    • Journal Title

      Mathematical Methods in the Applied Sciences

      Volume: 44 Issue: 18 Pages: 14003-14024

    • DOI

      10.1002/mma.7671

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] Thresholds for low regularity solutions to wave equation with structural damping2021

    • Author(s)
      Tomonori Fukushima, Hironori Michihisa, Ryo Ikehata
    • Journal Title

      J. Mathematical Analysis and Applications

      Volume: 494 Issue: 2 Pages: 124669-124669

    • DOI

      10.1016/j.jmaa.2020.124669

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] A note on optimal L2-estimates of solutions to some strongly damped σ-evolution equations2020

    • Author(s)
      Ryo Ikehata
    • Journal Title

      Asymptotic Analysis

      Volume: ― Issue: 1 Pages: 59-74

    • DOI

      10.3233/asy-191595

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04958, KAKENHI-PROJECT-20K03682
  • [Journal Article] Asymptotic profile and optimal decay of solutions of some wave equations with logarithmic damping2020

    • Author(s)
      Ruy Coimbra Charao, Ryo Ikehata
    • Journal Title

      Z. Angew. Math. Phys.

      Volume: 71:148 Issue: 5 Pages: 1-26

    • DOI

      10.1007/s00033-020-01373-x

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] Uniform energy decay for wave equations with unbounded damping coefficients2020

    • Author(s)
      Ryo Ikehata, Hiroshi Takeda
    • Journal Title

      Funkcialaj Ekvacioj

      Volume: 63 Pages: 133-152

    • NAID

      130007858187

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] A second order fractional differential equation under effects of a super damping2020

    • Author(s)
      Ruy Coimbra Charao, Juan Torres Espinoza, Ryo Ikehata
    • Journal Title

      Commun. Pure Appl. Analysis

      Volume: 19 Issue: 9 Pages: 4433-4454

    • DOI

      10.3934/cpaa.2020202

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] Asymptotic profiles for damped plate equations with rotational inertial terms2020

    • Author(s)
      Tomonori Fukushima, Ryo Ikehata, Hironori Michihisa
    • Journal Title

      J. Hyperbolic Differential Equations

      Volume: 17 Issue: 03 Pages: 569-589

    • DOI

      10.1142/s0219891620500162

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Journal Article] Asymptotic profiles for damped plate equations with rotational inertia terms2020

    • Author(s)
      Tomonori Fukushima, Ryo Ikehata, Hironori Michihisa
    • Journal Title

      Journal of Hyperbolic Differential Equations

      Volume: ―

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] A note on decay rates of the local energy for wave equations with Lipschitz wavespeeds2020

    • Author(s)
      Ruy Coimbra Charao and Ryo Ikehata
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 483 Issue: 2 Pages: 123636-123636

    • DOI

      10.1016/j.jmaa.2019.123636

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04958, KAKENHI-PROJECT-20K03682
  • [Journal Article] Large time behavior of global solutions to nonlinear wave equations with frictional and viscoelastic damping terms2019

    • Author(s)
      Ryo Ikehata and Hiroshi Takeda
    • Journal Title

      Osaka J. Mathematics

      Volume: 印刷中

    • NAID

      120006768703

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Critical exponent for semi-linear wave equations with double damping terms in exterior domains2019

    • Author(s)
      D’Abbicco Marcello、Ikehata Ryo、Takeda Hiroshi
    • Journal Title

      Nonlinear Differential Equations and Applications NoDEA

      Volume: 26 Issue: 6 Pages: 25-25

    • DOI

      10.1007/s00030-019-0603-5

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19K03596, KAKENHI-PROJECT-15K04958, KAKENHI-PROJECT-16H03940
  • [Journal Article] Some remarks on the local energy decay for wave equations in the whole space2019

    • Author(s)
      Ryo Ikehata
    • Journal Title

      Azelbaijan Journal of Mathematics

      Volume: 9 Pages: 167-182

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Asymptotic profiles of solutions for structural damped wave equations2019

    • Author(s)
      Ryo Ikehata and Hiroshi Takeda
    • Journal Title

      J. Dynamics and Differential equations

      Volume: 31 Issue: 1 Pages: 537-571

    • DOI

      10.1007/s10884-019-09731-8

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04958, KAKENHI-PROJECT-16H03940, KAKENHI-PROJECT-15K17581
  • [Journal Article] Optimal energy decay rates for some wave equations with double damping terms2019

    • Author(s)
      Ryo Ikehata and Shingo Kitazaki
    • Journal Title

      Evolution Equations and Control Theory

      Volume: 8 Issue: 4 Pages: 825-846

    • DOI

      10.3934/eect.2019040

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Asymptotic profile of solutions for strongly damped Klein-Gordon equations2019

    • Author(s)
      Marcello D'Abbicco and Ryo Ikehata
    • Journal Title

      Mathematical Mathods in the Applied Sciences

      Volume: 42 Issue: 7 Pages: 2287-2301

    • DOI

      10.1002/mma.5508

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Moment conditions and lower bounds in expanding solutions of wave equations with double damping terms2019

    • Author(s)
      Ryo Ikehata and Hironori Michihisa
    • Journal Title

      Asymptotic Analysis

      Volume: 114 Issue: 1-2 Pages: 19-36

    • DOI

      10.3233/asy-181516

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Large time behavior of global solutions to nonlinear wave equations with fractional and viscoelastic damping terms2019

    • Author(s)
      Ryo Ikehata and Hiroshi Takeda
    • Journal Title

      Osaka J. Math.

      Volume: 56 Pages: 807-830

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Note on asymptotic profile of solutions to the linearized compressible Navier-Stokes flow2018

    • Author(s)
      Ruy C. Charao and Ryo Ikehata
    • Journal Title

      Hokkaido Mathematical J.

      Volume: in press

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Asymptotic profile of solutions for some wave equations with very strong structural damping2018

    • Author(s)
      Ryo Ikehata and Shin Iyota
    • Journal Title

      Mathematical Methods in the Applied Sciences

      Volume: in press Issue: 13 Pages: 5074-5090

    • DOI

      10.1002/mma.4954

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Uniform energy decay for wave equations with unbounded damping2018

    • Author(s)
      Ryo Ikehata and Hiroshi Takeda
    • Journal Title

      Funkcialaj Ekvacioj

      Volume: in press

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Remarks on the Decay Rate of the Energy for Damped Modified Boussinesq-Beam Equations on the 1-D Half Line2017

    • Author(s)
      Ruy C. Charao and Ryo Ikehata
    • Journal Title

      FE

      Volume: 60 Issue: 2 Pages: 239-257

    • DOI

      10.1619/fesi.60.239

    • NAID

      130005765969

    • ISSN
      0532-8721
    • Language
      English
    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Remarks on the large time behavior of the L^{2}-norm of solutions to strongly damped wave equations2017

    • Author(s)
      Ryo Ikehata and Michiaki Onodera
    • Journal Title

      Differential and Integral Equations

      Volume: 30 Pages: 505-520

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Fast energy decayfor wave equations with a localized damping in the n-D half space2017

    • Author(s)
      Ryo Ikehata
    • Journal Title

      Asymptotic Analysis

      Volume: 103 Issue: 1-2 Pages: 77-94

    • DOI

      10.3233/asy-171420

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Critical exponent for nonlinear wave equations with frictional and viscoelastic damping terms2017

    • Author(s)
      Ryo IKEHATA and Hiroshi TAKEDA
    • Journal Title

      Nonlinear Analysis

      Volume: 148 Pages: 228-253

    • DOI

      10.1016/j.na.2016.10.008

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-15K04958, KAKENHI-PROJECT-15K17581
  • [Journal Article] Asymptotic profile of solutions for wave equations with frictional and viscoelastic damping terms2016

    • Author(s)
      Ryo IKEHATAand Atsushi SAWADA
    • Journal Title

      Asymptotic Analysis

      Volume: 98 Issue: 1-2 Pages: 59-77

    • DOI

      10.3233/asy-161361

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Optimal decay rates and asymptotic profile for the plate equation with structural damping2016

    • Author(s)
      Jaqueline L. Horbach, Ryo Ikehata and Ruy C. Charao
    • Journal Title

      J. Mathematical Analysis and Applications

      Volume: 440 Issue: 2 Pages: 529-560

    • DOI

      10.1016/j.jmaa.2016.03.046

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Fast energy decay for wave equations with variable damping coefficients in the 1-D half line2016

    • Author(s)
      Ryo IKEHATA and Takeshi KOMATSU
    • Journal Title

      Differential and Integral Equations

      Volume: 29 Pages: 421-440

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Asymptotic profiles for a strongly damped plate equation with lower  order perturbation2015

    • Author(s)
      Ryo Ikehata and Marina Soga
    • Journal Title

      Communications on Pure and Applied Analysis

      Volume: 印刷中

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Journal Article] Asymptotic profiles for a strongly damped plate equation with lower order perturbation2015

    • Author(s)
      R.Ikehata and M.Soga
    • Journal Title

      Communications in Pure and Applied Analysis

      Volume: 14 Issue: 5 Pages: 1759-1780

    • DOI

      10.3934/cpaa.2015.14.1759

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Asymptotic behavior for abstract evolution equations of second order2015

    • Author(s)
      C.R.da Luz, R.Ikehata and R.C.Charao
    • Journal Title

      J. Differential Equations

      Volume: 259 Issue: 10 Pages: 5017-5039

    • DOI

      10.1016/j.jde.2015.06.012

    • Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Journal Article] Some remarks on the asymptotic profiles of solutions for strongly damped wave equations on the 1-D half space2015

    • Author(s)
      Ryo Ikehata
    • Journal Title

      J. Math. Anal. Appl

      Volume: 421 Issue: 1 Pages: 905-916

    • DOI

      10.1016/j.jmaa.2014.07.055

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-22244009, KAKENHI-PROJECT-15K04958
  • [Journal Article] Asymptotic behavior for abstract evolution differential equations of second order2015

    • Author(s)
      Cleverson Roberto da Luz, Ryo Ikehata and Ruy Coimbra Charao
    • Journal Title

      J. Diff. Eqns

      Volume: 印刷中

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Journal Article] Optimal decay rates for the system of elastic waves in ${\bf R}^{n}$ with structural damping.2014

    • Author(s)
      Ryo Ikehata, R. C. Charao and C. R. da Luz
    • Journal Title

      J. Evol. Equ.

      Volume: 14 Issue: 1 Pages: 197-210

    • DOI

      10.1007/s00028-014-0216-8

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244009, KAKENHI-PROJECT-22540193
  • [Journal Article] Asymptotic profiles for wave equations with strong damping2014

    • Author(s)
      Ryo Ikehata
    • Journal Title

      J. Diff. Eqns

      Volume: 257 Issue: 6 Pages: 2159-2177

    • DOI

      10.1016/j.jde.2014.05.031

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Journal Article] Sharp decay rates for wave equations with a fractional damping via new method in the Fourier space.2013

    • Author(s)
      R. C. Charao, C. R. da Luz and Ryo Ikehata
    • Journal Title

      J. Math. Anal. Appl.

      Volume: 408 Issue: 1 Pages: 247-255

    • DOI

      10.1016/j.jmaa.2013.06.016

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244009, KAKENHI-PROJECT-22540193
  • [Journal Article] Wave equations with strong damping in Hilbert spaces.2013

    • Author(s)
      Ryo Ikehata, G. Todorova, and B. Yordanov,
    • Journal Title

      J. Differential Equations

      Volume: 254 Issue: 8 Pages: 3352-3368

    • DOI

      10.1016/j.jde.2013.01.023

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244009, KAKENHI-PROJECT-22540193
  • [Journal Article] Optimal decay rate of the energy for wave equations with critical potential2013

    • Author(s)
      R. Ikehata
    • Journal Title

      Journal of the Mathematical Society of Japan

      Volume: 65 Issue: 1 Pages: 183-236

    • DOI

      10.2969/jmsj/06510183

    • NAID

      10031177278

    • ISSN
      0025-5645, 1881-1167, 1881-2333
    • Language
      English
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244009, KAKENHI-PROJECT-22540193
  • [Journal Article] New decay rates for a problem of plate dynamics with fractional damping.2013

    • Author(s)
      R. C. Charao, C. R. da Luz and Ryo Ikehata
    • Journal Title

      J. Hyperbolic Differ. Equ.

      Volume: 10 Issue: 03 Pages: 1-13

    • DOI

      10.1142/s0219891613500203

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244009, KAKENHI-PROJECT-22540193
  • [Journal Article] Energy decay estimates for wave equations with a fractional damping2012

    • Author(s)
      Ryo Ikehata, Masato Natsume
    • Journal Title

      Differential and Integral Equations

      Volume: 25 Pages: 939-956

    • URL

      http://projecteuclid.org/die

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Journal Article] Energy decay estimates for wave equations with a fractional damping2012

    • Author(s)
      R. Ikehata
    • Journal Title

      Differential and Integral Eqns

      Volume: 25 Pages: 939-956

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Journal Article] Energy decay estimates for wave equations with a fractional damping2012

    • Author(s)
      Ryo IKEHATA
    • Journal Title

      Differential and Integral equations

      Volume: 9-10 Pages: 939-956

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Journal Article] Energy decay estimates for wave equations with a fractional damping2012

    • Author(s)
      R. Ikehata, and M.Natsume
    • Journal Title

      Differential and Integral Eqns

      Volume: 25, No.9-10 Pages: 939-956

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22540202
  • [Journal Article] Optimal decay rate of the energy for wave equations with critical potential2011

    • Author(s)
      Ryo Ikehata, Grozdena Todorova, Borislav Yordanov
    • Journal Title

      J.Math.Soc.Japan

      Volume: (掲載決定)

    • NAID

      10031177278

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Journal Article] Energy decay rates of elastic waves in unbounded domain with potential type of damping2011

    • Author(s)
      R.C.Charaon and R. Ikehata
    • Journal Title

      J. Math. Anal. Appl

      Volume: 380, No.5 Pages: 46-56

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22540202
  • [Journal Article] Energy decay rates of elastic waves in unbounded domain with potential type of damping2011

    • Author(s)
      Ruy C.Charao
    • Journal Title

      J.Math.Anal.Appl.

      Volume: 380 Issue: 1 Pages: 46-56

    • DOI

      10.1016/j.jmaa.2011.02.075

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244009, KAKENHI-PROJECT-22540193
  • [Journal Article] Semilinear parabolic equation associated with critical Sobolev exponent2010

    • Author(s)
      R.Ikehata
    • Journal Title

      Annales de l'Institut Henri Poincare, Analyse Non Lineaire

      Volume: 27 Pages: 877-900

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Journal Article] Local energy decay for a class of hyperbolic equations with constant coefficients near infinity2010

    • Author(s)
      S.Aikawa and R. Ikehata
    • Journal Title

      Math. Nachr

      Volume: 283, No.5 Pages: 636-647

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22540202
  • [Journal Article] Semilinear parabolic equation associated with critical Sobolev exponent2010

    • Author(s)
      Ryo Ikehata, Michinori Ishiwata, Takashi Suzuki
    • Journal Title

      Annales de l'Institut Henri Poincare, Analyse non lineaire

      Volume: 27 Pages: 877-900

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Journal Article] Local energy decay for a class of hyperbolic equations with constant coefficient near infinity2010

    • Author(s)
      Shintaro Aikawa, Ryo Ikehata
    • Journal Title

      Mathematische Nachrichten

      Volume: 283 Pages: 636-647

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Journal Article] Local energy decay for a class of hyperbolic equations2010

    • Author(s)
      Shintaro AIKAWA, Ryo IKEHATA
    • Journal Title

      Mathematische Nachrichten Vol.283

      Pages: 636-647

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Journal Article] Critical exponent for semilinear wave equations with a subcritical potential2009

    • Author(s)
      Ryo IKEHATA, Grozdena TODOROVA, Borislav YORDANOV
    • Journal Title

      Funkcialaj Ekvacioj Vol.52

      Pages: 411-435

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Journal Article] The enclosure method for the heat equations2009

    • Author(s)
      M. Ikehata, M. Kawashita
    • Journal Title

      Inverse problem 25

      Pages: 75005-75005

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540183
  • [Journal Article] The enclosure method for the heat equations2009

    • Author(s)
      M.Ikehata, M.Kawashita
    • Journal Title

      Inverse problem 25

      Pages: 75005-75005

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540183
  • [Journal Article] Critical exponent for semilinear wave equations with space-dependent potential2009

    • Author(s)
      Ryo Ikehata
    • Journal Title

      Funkcialaj Ekvacioj 52巻

      Pages: 411-435

    • NAID

      130000161979

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Journal Article] Global existence of weak solutions for 2-D semilinear wave equationswith strong damping in an exterior domain2008

    • Author(s)
      R.Ikehata and Y.Inoue
    • Journal Title

      Nonlinear Anal. 68.No.1

      Pages: 154-169

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540191
  • [Journal Article] Total energy decay for semi-linear wave equations with a critical potential type of damping2008

    • Author(s)
      Ryo IKEHATA, Yu-ki INOUE
    • Journal Title

      onlinear Analysis Vol.69

      Pages: 1369-1401

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Journal Article] Global existence of weak solutions for 2-D semilinear wave equationswith strong damping in an exterior domain2008

    • Author(s)
      R. Ikehata, Y. Inoue
    • Journal Title

      Nonlinear Anal. 68.No.1

      Pages: 154-169

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540191
  • [Journal Article] Total energy decay for semi1inear wave equations with A critical potential type of damping2008

    • Author(s)
      Ryo IKEHATA
    • Journal Title

      Nonlinear Analysis, TMA 69

      Pages: 1396-1401

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Journal Article] Local energy decay for linear hyperbolic equations with initial data decaying slowly near infinity2007

    • Author(s)
      R.Ikehata and G.Sobukawa
    • Journal Title

      Hokkaido Math.J. 36.No.1

      Pages: 53-71

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540191
  • [Journal Article] Local energy decay for linear hyperbolic equations with initial data decaying slowly near infinity.2007

    • Author(s)
      R. Ikehata
    • Journal Title

      Hokkaido Math. J. 36・1

      Pages: 53-71

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Journal Article] Global existence of weak solutions for 2-D semilinear wave equations with strong damping in an exterior domain2007

    • Author(s)
      R. Ikehata
    • Journal Title

      Nonlinear Analysis, TMA 68・1

      Pages: 154-169

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Journal Article] Local energy decay for linear hyperbolic equations with initial data decaying slowly near infinity2007

    • Author(s)
      R. Ikehata, G. Sobukawa
    • Journal Title

      Hokkaido Math. J. 36No.1

      Pages: 53-71

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19540191
  • [Journal Article] Global existence of solutions for 2-D semilinear wave equations with dissipation localized near infinity in an exterior domain2006

    • Author(s)
      R.Ikehata
    • Journal Title

      Math. Methods Appl. Sci. 29・4

      Pages: 479-496

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16540156
  • [Journal Article] Global existence of solutions for 2-D semilinear wave equations with dissipation localized near infinity in an exterior domain2006

    • Author(s)
      R.Ikehata
    • Journal Title

      Math. Methods Appl. Sci 29-4

      Pages: 479-496

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540156
  • [Journal Article] Local energy decay for linear wave equations with variable coefficients2005

    • Author(s)
      R.IKEHATA
    • Journal Title

      J.Math.Anal.Appl. (印刷中)

    • Data Source
      KAKENHI-PROJECT-14540208
  • [Journal Article] Local energy decay for linear wave equations with variable coefficients.2005

    • Author(s)
      R.Ikehata
    • Journal Title

      J. Math. Anal. Appl 306-1

      Pages: 330-348

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540156
  • [Journal Article] Local energy decay for linear wave equations with variable coefficients2005

    • Author(s)
      R.IKEHATA
    • Journal Title

      J.Math.Anal.Appl. 306

      Pages: 330-348

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14540208
  • [Journal Article] Two dimensional exterior mixed problem for semilinear damped wave equations2005

    • Author(s)
      R.IKEHATA
    • Journal Title

      J.Math.Anal.Appl. 301

      Pages: 360-371

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14540208
  • [Journal Article] Local energy decay for linear wave equations with variable coefficients2005

    • Author(s)
      R.Ikehata
    • Journal Title

      J. Math. Anal. Appl. 306・1

      Pages: 330-348

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16540156
  • [Journal Article] Global existence of solutions for semilinear damped wave equations in R^{N} with non-compactly supported initial data2005

    • Author(s)
      R.IKEHATA, K.TANIZAWA
    • Journal Title

      Nonlinear Anal. (印刷中)

    • Data Source
      KAKENHI-PROJECT-14540208
  • [Journal Article] Local energy decay for linear wave equations with localized dissipation2005

    • Author(s)
      R.IKEHATA
    • Journal Title

      Funkcial.Ekvac. (印刷中)

    • NAID

      130000141320

    • Data Source
      KAKENHI-PROJECT-14540208
  • [Journal Article] New decay estimates for linear damped wave equations and its application to nonlinear problem2004

    • Author(s)
      R.Ikehata
    • Journal Title

      Math. Methods Appl. Sci 27-8

      Pages: 865-889

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540156
  • [Journal Article] Local energy decay for linear wave equations with non-compactly supported initial data2004

    • Author(s)
      R.IKEHATA
    • Journal Title

      Math.Meth.Appl.Sci. 27

      Pages: 1881-1892

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14540208
  • [Journal Article] Global existence of solutions for semilinear damped wave equation in 2-D exterior domain2004

    • Author(s)
      R.Ikehata
    • Journal Title

      J. Differential Equations 200-1

      Pages: 53-68

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540156
  • [Journal Article] Decay estimates of solutions for dissipative wave equations in R^{N} with lower power nonlinearities2004

    • Author(s)
      R.IKEHATA
    • Journal Title

      J.Math.Soc.Japan 56

      Pages: 365-373

    • NAID

      10013122934

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14540208
  • [Journal Article] Local energy decay for linear wave equations with non-compactly supported initial data2004

    • Author(s)
      R.IKEHATA
    • Journal Title

      Math.Methods Appl.Sci. 27

      Pages: 1881-1892

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-14540208
  • [Journal Article] New decay estimates for linear damped wave equations and its application to nonlinear problem2004

    • Author(s)
      R.IKEHATA
    • Journal Title

      Math.Meth.Appl.Sci. 27

      Pages: 865-889

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-14540208
  • [Journal Article] Global existence of solutions for semilinear damped wave equation in 2-D exterior domain2004

    • Author(s)
      R.Ikehata
    • Journal Title

      J. Differential Equations 200・1

      Pages: 53-68

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16540156
  • [Journal Article] New decay estimates for linear damped wave equations and its application to nonlinear problem2004

    • Author(s)
      R.IKEHATA
    • Journal Title

      Math.Methods Appl.Sci. 27

      Pages: 865-889

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-14540208
  • [Journal Article] New decay estimates for linear damped wave equations and its application to nonlinear problem2004

    • Author(s)
      R.Ikehata
    • Journal Title

      Math. Methods Appl. Sci. 27・8

      Pages: 865-889

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16540156
  • [Journal Article] Global existence of solutions for semilinear damped wave equation in 2-D exterior domain2004

    • Author(s)
      R.IKEHATA
    • Journal Title

      J.Diff.Eqns 200

      Pages: 53-68

    • Data Source
      KAKENHI-PROJECT-14540208
  • [Journal Article] Local energy decay for linear wave equations with non-compactly supported initial data2004

    • Author(s)
      R.Ikehata
    • Journal Title

      Math. Methods Appl. Sci 27, no.16

      Pages: 1881-1892

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540156
  • [Journal Article] Local energy decay for linear wave equations with non-compactly supported initial data2004

    • Author(s)
      R.Ikehata
    • Journal Title

      Math. Methods Appl. Sci. 27・16

      Pages: 1881-1892

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16540156
  • [Journal Article] Decay of solutions for the system of elastic waves in an exterior domain with damping near infinity

    • Author(s)
      R.Ikehata
    • Journal Title

      Nonlinear Anal. to appear

    • Data Source
      KAKENHI-PROJECT-16540156
  • [Journal Article] Optimal decay rate of the energy for wave equations with critical potential

    • Author(s)
      R.Ikehata
    • Journal Title

      J.Math.Soc.Japan

      Volume: (in press)

    • NAID

      10031177278

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Journal Article] Decay of solutions f or the system of elastic waves in an exterior domain with damping near infinity

    • Author(s)
      R.C.Charaon, R.Ikehata
    • Journal Title

      Nonlinear Anal. (to appear) (to appear)

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540156
  • [Journal Article] Decay of solutions for the system of elastic waves in an exterior domain with damping near infinity

    • Author(s)
      R.Ikehata
    • Journal Title

      Nonlinear Anal. (to appear)

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16540156
  • [Presentation] 波動方程式の解のL2-評価と局所エネルギー減衰2022

    • Author(s)
      池畠良
    • Organizer
      静岡大学「現代解析学研究所プロジェクト」
    • Invited
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Presentation] Sharp L^{2}-estimates of the wave equation and its application to local energy decay2022

    • Author(s)
      Ryo Ikehata
    • Organizer
      名古屋微分方程式セミナー
    • Invited
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Presentation] L2-estimates for wave equations and its related topic2022

    • Author(s)
      池畠良
    • Organizer
      One day workshop on Hyperbolic PDE in Kushiro
    • Invited
    • Data Source
      KAKENHI-PROJECT-20K03682
  • [Presentation] 非常に強い構造的摩擦項を持つ波動方程式の解の漸近形とその応用2019

    • Author(s)
      池畠良
    • Organizer
      松山解析セミナー2018
    • Invited
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Presentation] Lipschitz wavespeedsをもつ波動方程式について2019

    • Author(s)
      池畠良
    • Organizer
      三重偏微分方程式研究集会
    • Invited
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Presentation] ある摩擦項と18次元空間2019

    • Author(s)
      道久寛載、福島誠宜、池畠良
    • Organizer
      第45回発展方程式研究会
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Presentation] Asymptotic profile of solutions for wave equations with very strong structural damping and related topics.2019

    • Author(s)
      池畠良
    • Organizer
      Workshop on Analysis in Kagurazaka 2019
    • Invited
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Presentation] Optimal energy decay rates for some wave equations with double damping terms.2019

    • Author(s)
      福島誠宜、池畠良、道久寛載
    • Organizer
      第45回発展方程式研究会
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Presentation] Optimal energy decay rates for some wave equations with double damping terms.2018

    • Author(s)
      北崎信吾、池畠良
    • Organizer
      第44回発展方程式研究会
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Presentation] Asymptotic profile of solutions for some wave equations with very strong structural damping2017

    • Author(s)
      Shin Iyota and Ryo Ikehata
    • Organizer
      第43回発展方程式研究会
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Presentation] Fast energy decay for wave equations with a localized damping in the $n$-D half space2016

    • Author(s)
      Ryo IKEHATA
    • Organizer
      Federal University of Santa Catarina, 数学教室談話会
    • Place of Presentation
      UFSC、Department of Mathematics, Brazil
    • Year and Date
      2016-12-13
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Presentation] Asymptotic profiles for wave equation with strong damping2016

    • Author(s)
      池畠良
    • Organizer
      浜松偏微分方程式セミナー
    • Place of Presentation
      静岡大学工学部
    • Year and Date
      2016-05-13
    • Invited
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Presentation] Asymptotic profiles for wave equation with strong damping2015

    • Author(s)
      Ryo Ikehata
    • Organizer
      九州関数方程式セミナー
    • Place of Presentation
      福岡大学セミナーハウス
    • Year and Date
      2015-12-11
    • Invited
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Presentation] 消散構造を持ついくつかの線形波動方程式の解の減衰評価とその応用2015

    • Author(s)
      池畠良
    • Organizer
      九州大学大学院数理学府集中講義「数理科学特論5」「数理科学特別講義V」
    • Place of Presentation
      九州大学大学院数理学府
    • Year and Date
      2015-12-07
    • Invited
    • Data Source
      KAKENHI-PROJECT-15K04958
  • [Presentation] Asymptotic profiles for a strongly damped plate equation with lower order perturbation2015

    • Author(s)
      池畠良
    • Organizer
      日本数学会中国・四国支部会
    • Place of Presentation
      徳島大学、徳島市
    • Year and Date
      2015-01-25
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Presentation] Asymptotic profiles for wave equations with strong damping2014

    • Author(s)
      R. Ikehata
    • Organizer
      第10回AIMS Conference
    • Place of Presentation
      Madrid, Spain
    • Year and Date
      2014-07-11
    • Invited
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Presentation] History and recent trends on damped wave equations2013

    • Author(s)
      Ryo Ikehata
    • Organizer
      Mini-Course at Department of Mathematics, Federal Univ. Santa Catarina
    • Place of Presentation
      Federal Univ. Santa Catarina, Brazil
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] History and recent trends on damped wave equations2013

    • Author(s)
      R. Ikehata
    • Organizer
      Mini-Course in Summer School 2013
    • Place of Presentation
      Department of Mathematics, Federal Univ. Santa Catarina, Brazil
    • Invited
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Presentation] Energy decay estimates for wave equations with a fractional damping2012

    • Author(s)
      Ryo Ikehata
    • Organizer
      9th AIMS International Conference on Dynamical Systems, Differential Equations and Applications
    • Place of Presentation
      Hyatt Regency Grand Cypress, Orlando, Florida, USA
    • Year and Date
      2012-07-04
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] Energy decay estimates for wave equations with a fractional damping2012

    • Author(s)
      R. Ikehata
    • Organizer
      第9回AIMS Conference at Florida
    • Place of Presentation
      Orlando, USA
    • Invited
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Presentation] Energy decay estimates for wave equations with a fractional dampin2012

    • Author(s)
      R. Ikehata
    • Organizer
      第9回 AIMS International Conference on dynamical Systems, Differential equations and Applications
    • Place of Presentation
      Hyatt Regency Grand Cypress, Orlando, Florida, USA
    • Year and Date
      2012-07-04
    • Data Source
      KAKENHI-PROJECT-22540202
  • [Presentation] 変数係数消散型波動方程式のエネルギー減衰2011

    • Author(s)
      池畠良
    • Organizer
      松山解析セミナー2011
    • Place of Presentation
      愛媛大学理工学部
    • Year and Date
      2011-02-04
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Presentation] Energy decay for wave equations with damping terms decaying critically near infinity2011

    • Author(s)
      Ryo Ikehata
    • Organizer
      The 4^<th> MSJ-SI, Nonlinear Dynamics in Partial Differential Equations
    • Place of Presentation
      Kyushu University
    • Year and Date
      2011-09-18
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] 空間遠方で臨界減衰する摩擦項を持つ波動方程式のエネルギー減衰についての新展開2011

    • Author(s)
      池畠良
    • Organizer
      日本数学会秋季総合分科会函数方程式論分科会特別講演
    • Place of Presentation
      信州大学
    • Year and Date
      2011-09-30
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] 空間遠方で臨界減衰する摩擦項を持つ波動方程式のエネルギー減衰についての新展開2011

    • Author(s)
      池畠良
    • Organizer
      日本数学会函数方程式論分科会秋季総合分科会
    • Place of Presentation
      信州大学理学部(特別講演)
    • Year and Date
      2011-09-30
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Presentation] 変数係数消散型波動方程式のエネルギー減衰評価2011

    • Author(s)
      池畠良
    • Organizer
      九州関数方程式セミナー
    • Place of Presentation
      福岡大学セミナーハウス
    • Year and Date
      2011-01-21
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] 変数係数消散型波動方程式のエネルギー減衰2011

    • Author(s)
      池畠良
    • Organizer
      松山解析セミナー2011
    • Place of Presentation
      愛媛大学理学部
    • Year and Date
      2011-02-04
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] 変数係数消散型波動方程式のエネルギー減衰評価2011

    • Author(s)
      池畠良
    • Organizer
      九州関数方程式セミナー
    • Place of Presentation
      福岡大学セミナーハウス
    • Year and Date
      2011-01-21
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Presentation] 空間遠方で臨界減衰する摩擦項を持つ波動方程式のエネルギー減衰についての新展開2011

    • Author(s)
      池畠良
    • Organizer
      日本数学会秋季総合分科会・函数方程式論分科会
    • Place of Presentation
      信州大学理学部(招待講演)
    • Year and Date
      2011-09-30
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] Energy decay for wave equations with damping terms decaying critically near infinity2011

    • Author(s)
      池畠良
    • Organizer
      The 4th MSJ-SI "NONLINEAR DYNAMICS IN PARTIAL DIFFERENTIAL EQUATIONS
    • Place of Presentation
      九州大学医学部百年記念講堂(招待講演)
    • Year and Date
      2011-09-18
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Presentation] 変数係数消散型波動方程式のエネルギー減衰評価2011

    • Author(s)
      池畠良
    • Organizer
      九州関数方程式セミナー
    • Place of Presentation
      福岡大学セミナーハウス(招待講演)
    • Year and Date
      2011-01-21
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] ある変数係数波動方程式のエネルギー減衰率2011

    • Author(s)
      池畠良
    • Organizer
      微分方程式セミナー
    • Place of Presentation
      名古屋大学多元数理科学研究科
    • Year and Date
      2011-06-06
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] Energy decay for wave equations with damping terms decaying critically near infinity2011

    • Author(s)
      池畠良
    • Organizer
      日本数学会主催国際研究集会:The fourth 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-22540193
  • [Presentation] 変数係数消散型波動方程式のエネルギー減衰2011

    • Author(s)
      池畠良
    • Organizer
      松山解析セミナー2011
    • Place of Presentation
      愛媛大学理学部(招待講演)
    • Year and Date
      2011-02-04
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] 空間遠方で臨界減衰する摩擦項を持つ波動方程式のエネルギー減衰についての新展開2011

    • Author(s)
      R. Ikehata
    • Organizer
      日本数学会秋季総合分科会函数方程式論分科会(特別講演)
    • Place of Presentation
      信州大学
    • Year and Date
      2011-09-30
    • Data Source
      KAKENHI-PROJECT-22540202
  • [Presentation] ある変数係数波動方程式のエネルギー減衰率2011

    • Author(s)
      池畠良
    • Organizer
      名古屋微分方程式セミナー
    • Place of Presentation
      名古屋大学多元数理科学研究科(招待講演)
    • Year and Date
      2011-06-06
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Presentation] Optimal decay rate of the energy for linear wave equations with a critical potential2010

    • Author(s)
      Ryo Ikehata
    • Organizer
      The 8^<th> AIMS Conference
    • Place of Presentation
      Dresden University of Technology, Germany(招待講演)
    • Year and Date
      2010-05-27
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] Conference on dynamical Systems2010

    • Author(s)
      R. Ikehata
    • Organizer
      Differential equations and Applications
    • Place of Presentation
      Dresden University of Technology, Dresden, Germany
    • Year and Date
      2010-05-27
    • Data Source
      KAKENHI-PROJECT-22540202
  • [Presentation] Optimal decay rate of the energy for linear wave equations with a critical potential2010

    • Author(s)
      R.Ikehata
    • Organizer
      8th AIMS International Conference in Dresden
    • Place of Presentation
      Dresden, Germany
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Presentation] Optimal decay rate of the energy for linear wave equations with a critical potential2010

    • Author(s)
      Ryo Ikehata
    • Organizer
      8th AIMS International Conference on Dynamical Systems, Differential Equations and Applications
    • Place of Presentation
      Dresden University of Technology, Dresden, Germany
    • Year and Date
      2010-05-27
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] 空間遠方で臨界減衰する摩擦項をもつ線型波動方程式のエネルギーの基礎的減衰評価2010

    • Author(s)
      池畠良
    • Organizer
      第75回応用解析セミナー
    • Place of Presentation
      熊本大学大学院(招待講演)
    • Year and Date
      2010-05-15
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] 空間遠方で臨界減衰する摩擦項をもつ線型波動方程式のエネルギーの基礎的減衰評価2010

    • Author(s)
      池畠良
    • Organizer
      応用解析セミナー
    • Place of Presentation
      熊本大学
    • Year and Date
      2010-05-15
    • Data Source
      KAKENHI-PROJECT-22244009
  • [Presentation] 空間遠方で臨界減衰する摩擦項をもつ線型波動方程式のエネルギーの基礎的減衰評価2010

    • Author(s)
      池畠良
    • Organizer
      第75回応用解析セミナー
    • Place of Presentation
      熊本大学大学院自然科学研究科
    • Year and Date
      2010-05-15
    • Data Source
      KAKENHI-PROJECT-22540193
  • [Presentation] 臨界ポテンシャルを持つ線型波動方程式のエネルギーの最良減衰率2009

    • Author(s)
      池畠良
    • Organizer
      研究集会「第5回非線型の諸問題」
    • Place of Presentation
      長崎商工会議所(長崎市)
    • Year and Date
      2009-09-17
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Presentation] Decay estimates of the energy for wave equations with a critical potential2009

    • Author(s)
      池畠良
    • Organizer
      京都大学数理解析研究所短期共同研究:「流体と気体の数学解析」
    • Place of Presentation
      京大会館210号室(京都市)
    • Year and Date
      2009-07-08
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Presentation] 臨界ポテンシャルを持つ線型波動方程式のエネルギーの最良減衰率2009

    • Author(s)
      池畠良
    • Organizer
      研究集会「第5回非線形の諸問題」
    • Place of Presentation
      長崎商工会議所
    • Year and Date
      2009-09-21
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Presentation] 非有界領域上の双曲型方程式のエネルギー減衰2008

    • Author(s)
      池畠 良
    • Organizer
      研究集会「第4回 非線型の諸問題」
    • Place of Presentation
      佐賀大学理工学部
    • Year and Date
      2008-09-22
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Presentation] 非有界領域上の双曲型方程式のエネルギー減衰2008

    • Author(s)
      池畠良
    • Organizer
      研究集会「第四回非線型の諸問題」
    • Place of Presentation
      佐賀大学
    • Year and Date
      2008-09-22
    • Data Source
      KAKENHI-PROJECT-19540191
  • [Presentation] Decay estimates of the energy for wave equations with a critical potential2008

    • Author(s)
      池畠良
    • Organizer
      「流体と気体の数学解析」研究集会
    • Place of Presentation
      京都大学数理解析研究所(京大会館)
    • Year and Date
      2008-09-21
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Presentation] Local energy decay for a class of hyperbolic equations with anisotropic variable coefficients2008

    • Author(s)
      Ryo IKEHATA
    • Organizer
      第7回AIMS Conference
    • Place of Presentation
      University of Arlington, Texas USA
    • Year and Date
      2008-05-24
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Presentation] 非有界領域上の双曲型方程式のエネルギー減衰2008

    • Author(s)
      池畠良
    • Organizer
      研究集会「第4回非線型の諸問題」
    • Place of Presentation
      佐賀大学理工学部
    • Year and Date
      2008-09-21
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Presentation] 非等方的変数係数をもつあるクラスの双曲型方程式の局所エネルギー減衰2007

    • Author(s)
      池畠良
    • Organizer
      第461回「応用解析」研究会
    • Place of Presentation
      早稲田大学理工学部
    • Year and Date
      2007-05-17
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Presentation] 非等方的変数係数を持つあるクラスの双曲型方程式の局所エネルギー減衰2007

    • Author(s)
      池畠 良
    • Organizer
      応用解析研究会セミナー
    • Place of Presentation
      早稲田大学理工学部
    • Year and Date
      2007-05-26
    • Data Source
      KAKENHI-PROJECT-19540184
  • [Presentation] Energy decay estimates for wave equations with a fractional damping

    • Author(s)
      Ryo IKEHATA
    • Organizer
      9th AIMS International Conference on Dynamical Systems, Differential Equations and Applications
    • Place of Presentation
      Hyatt Regency Grand Cypress, Orlando, Florida, USA
    • Invited
    • Data Source
      KAKENHI-PROJECT-22540193
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  • 27.  佐藤 義隆 (30099791)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 28.  斉藤 四郎 (60042694)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 29.  池田 章 (30093363)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 30.  竹田 寛志
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results

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