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Well-posedness and global dynamics of solutions to nonlinear partial differential equations

Research Project

Project/Area Number 19K14581
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 12020:Mathematical analysis-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Ikeda Masahiro  国立研究開発法人理化学研究所, 革新知能統合研究センター, 研究員 (00749690)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords非線形 / 偏微分方程式 / 関数空間 / ソボレフ空間 / 解の爆発 / 解の長時間挙動 / 臨界指数 / ソリトン / 大域解 / 有界性 / ラプラシアン / 安定性 / 適切性 / 大域挙動 / 非線形性 / シュレディンガー方程式 / 波動方程式 / 拡散方程式 / 尺度臨界空間 / 初期値問題 / 関数解析 / スペクトラルグラフ理論 / 機械学習 / 微分方程式 / 爆発解 / ライフスパン / 散乱解 / 基底状態 / 力学系 / 調和解析
Outline of Research at the Start

非線形偏微分方程式は, 自然科学のみならず, 工学, 医学, 経済学, 情報学の様々な場面で基礎となる. それゆえ, 方程式のモデル化の正当性や解の性質を研究することは, 上記学問領域の発展に必要不可欠である. 与えられたデータから, 解の性質を決定することは, 微分方程式研究の目標であり, これが達成されると現象の予測が可能となる. しかし, 非常に単純な場合のみ, これが達成されている. 本研究では, 様々な解析学を踏襲して, 方程式のモデル化の正当性や解の振る舞いに関する重要未解決問題に挑戦する.

Outline of Final Research Achievements

In this study, we evaluated the characteristics of solutions to nonlinear evolution equations under various conditions. Specifically, we extensively investigated the behavior of solutions to wave equations and Schr\:odinger equations with nonlinear terms of absolute value power and exponential type in different critical situations. As a result, we revealed the explosion of solutions and their existence depending on the size of initial values, and we provided optimal evaluations of their lifespan. Additionally, we conducted research on the behavior and stability of solutions in situations with different mass and potential, and the outcomes were published in international journals. These studies have made significant contributions to the understanding and application of nonlinear partial differential equations, stimulating new insights and theoretical developments in the fields of physics and mathematics.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は、非線形偏微分方程式の理論や応用において重要な貢献をしています。これらの研究により、異なる物理現象や数学モデルに関連する問題に対して、初期値問題の解の挙動や存在性、安定性などを評価する新たな手法や結果が提案された。これは科学的な理解を深めるだけでなく、実世界の問題に対する解決策の開発や技術の進歩にも貢献する。さらに、これらの研究成果は国際誌に掲載されるなど、学術コミュニティに広く認められており、他の研究者や関連分野の専門家によるさらなる応用や発展の可能性を示唆しています。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (100 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (42 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 42 results,  Open Access: 3 results) Presentation (55 results) (of which Int'l Joint Research: 15 results,  Invited: 3 results) Remarks (1 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Nonlinear evolution equation associated with hypergraph Laplacian2023

    • Author(s)
      Ikeda Masahiro、Uchida Shun
    • Journal Title

      Mathematical Methods in the Applied Sciences

      Volume: - Issue: 8 Pages: 9463-9476

    • DOI

      10.1002/mma.9068

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Blow-up and lifespan estimates for solutions to the weakly coupled system of nonlinear damped wave equations outside a ball2023

    • Author(s)
      Dao Tuan Anh、Ikeda Masahiro
    • Journal Title

      Journal of Evolution Equations

      Volume: 23 Issue: 1

    • DOI

      10.1007/s00028-023-00875-1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stability and instability of radial standing waves to NLKG equation with an inverse-square potential2023

    • Author(s)
      Hamano Masaru、Ikeda Masahiro
    • Journal Title

      Nonlinear Differential Equations and Applications NoDEA

      Volume: 30 Issue: 3

    • DOI

      10.1007/s00030-023-00844-0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Global universality of the two-layer neural networks with the k-rectified linear unit2023

    • Author(s)
      Hatano Naoya, Ikeda Masahiro, Isao Ishikawa, Sawano Yoshihiro
    • Journal Title

      Journal of Function Spaces

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hilbert C*-module for analyzing structured data2023

    • Author(s)
      Hashimoto Yuka, Komura Fuyuta, Ikeda Masahiro
    • Journal Title

      Matrix and Operator Equations and Applications

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Equivalence of conditions on initial data below the ground state to NLS with a repulsive inverse power potential2022

    • Author(s)
      Hamano Masaru、Ikeda Masahiro
    • Journal Title

      Journal of Mathematical Physics

      Volume: 63 Issue: 3 Pages: 031509-031509

    • DOI

      10.1063/5.0082891

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Finding Cheeger cuts in hypergraphs via heat equation2022

    • Author(s)
      Ikeda Masahiro、Miyauchi Atsushi、Takai Yuuki、Yoshida Yuichi
    • Journal Title

      Theoretical Computer Science

      Volume: 930 Pages: 1-23

    • DOI

      10.1016/j.tcs.2022.07.006

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Large time behavior of solutions to the Cauchy problem for the BBM?Burgers equation2022

    • Author(s)
      Fukuda Ikki、Ikeda Masahiro
    • Journal Title

      Journal of Differential Equations

      Volume: 336 Pages: 275-314

    • DOI

      10.1016/j.jde.2022.07.020

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Local Well-Posedness for the Scale-Critical Semilinear Heat Equation with a Weighted Gradient Term2022

    • Author(s)
      Chikami Noboru、Ikeda Masahiro、Taniguchi Koichi
    • Journal Title

      Advances in Harmonic Analysis and Partial Differential Equations

      Volume: - Pages: 63-75

    • DOI

      10.1007/978-3-031-24311-0_4

    • ISBN
      9783031243103, 9783031243110
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Koopman and Perron?Frobenius operators on reproducing kernel Banach spaces2022

    • Author(s)
      Ikeda Masahiro、Ishikawa Isao、Schlosser Corbinian
    • Journal Title

      Chaos: An Interdisciplinary Journal of Nonlinear Science

      Volume: 32 Issue: 12 Pages: 123143-123143

    • DOI

      10.1063/5.0094889

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fully-Connected Network on Noncompact Symmetric Space and Ridgelet Transform based on Helgason-Fourier Analysis2022

    • Author(s)
      Sonoda Sho, Ishikawa Isao, Ikeda Masahiro
    • Journal Title

      Proceedings of The 39th International Conference on Machine Learning (ICML)

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Universality of group convolutional neural networks based on ridgelet analysis on groups2022

    • Author(s)
      Sonoda Sho, Ishikawa Isao, Ikeda Masahiro
    • Journal Title

      Proc. of NeurIPS

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Boundedness of composition operators on reproducing kernel Hilbert spaces with analytic positive definite functions2022

    • Author(s)
      Ikeda Masahiro、Ishikawa Isao、Sawano Yoshihiro
    • Journal Title

      Journal of Mathematical Analysis and Applications

      Volume: 511 Issue: 1 Pages: 126048-126048

    • DOI

      10.1016/j.jmaa.2022.126048

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Heaviside function as an activation function2022

    • Author(s)
      Hatano Naoya、Ikeda Masahiro、Ishikawa Isao、Sawano Yoshihiro
    • Journal Title

      Journal of applied analysis

      Volume: 未定

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] On stability and instability of standing waves for 2d-nonlinear Schr\"odinger equations with point interaction2022

    • Author(s)
      Fukaya Noriyoshi、Georgiev Vladimir、Ikeda Masahiro
    • Journal Title

      Journal of Differential Equations

      Volume: 321 Pages: 258-295

    • DOI

      10.1016/j.jde.2022.03.008

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Optimal well-posedness and forward self-similar solution for the Hardy-H'enon parabolic equation in a critical weighted Lebesgue space2022

    • Author(s)
      Chikami Noboru、Ikeda Masahiro、Taniguchi Koichi
    • Journal Title

      Nonlinear Analysis

      Volume: 未定

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Universality of neural networks with a sigmoidal activation or discriminatory function on Banach lattices over the real line2022

    • Author(s)
      Hatano Naoya、Ikeda Masahiro、Ishikawa Isao、Sawano Yoshihiro
    • Journal Title

      Journal of Mathematical Science

      Volume: 未定

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Global dynamics below the ground state for the focusing semilinear Schr?dinger equation with a linear potential2021

    • Author(s)
      Ikeda Masahiro
    • Journal Title

      Journal of Mathematical Analysis and Applications

      Volume: 503 Issue: 1 Pages: 125291-125291

    • DOI

      10.1016/j.jmaa.2021.125291

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Well-posedness for the fourth-order Schr\"odinger equation with third order derivative nonlinearities2021

    • Author(s)
      Hirayama Hiroyuki、Ikeda Masahiro、Tanaka Tomoyuki
    • Journal Title

      Nonlinear Differential Equations and Applications NoDEA

      Volume: 28 Issue: 5

    • DOI

      10.1007/s00030-021-00707-6

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] On the Cauchy problem for a class of semilinear second order evolution equations with fractional Laplacian and damping2021

    • Author(s)
      Fujiwara Kazumasa、Ikeda Masahiro、Wakasugi Yuta
    • Journal Title

      Nonlinear Differential Equations and Applications NoDEA

      Volume: 28 Issue: 6

    • DOI

      10.1007/s00030-021-00723-6

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] A Global Universality of Two-Layer Neural Networks with ReLU Activations2021

    • Author(s)
      Hatano Naoya、Ikeda Masahiro、Ishikawa Isao、Sawano Yoshihiro
    • Journal Title

      Journal of Function Spaces

      Volume: 2021 Pages: 1-3

    • DOI

      10.1155/2021/6637220

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Well-posedness and global dynamics for the critical Hardy-Sobolev parabolic equation2021

    • Author(s)
      Chikami Noboru、Ikeda Masahiro、Taniguchi Koichi
    • Journal Title

      Nonlinearity

      Volume: 34 Issue: 11 Pages: 8094-8142

    • DOI

      10.1088/1361-6544/ac2c90

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Reproducing kernel Hilbert C*-modules and kernel mean embeddings2021

    • Author(s)
      Hashimoto Yuka、Ishikawa Isao、Ikeda Masahiro、 Komura Fuyuta、Katsura Takeshi、Kawahara Yoshinobu
    • Journal Title

      Journal of Machine Learning Research

      Volume: 22

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Critical exponent for the wave equation with a time-dependent scale invariant damping and a cubic convolution2021

    • Author(s)
      Masahiro Ikeda, Tomoyuki Tanaka and Kyohei Wakasa
    • Journal Title

      Journal of Differential Equations

      Volume: 270 Pages: 916-946

    • DOI

      10.1016/j.jde.2020.08.047

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Boundedness of composition operators on Morrey spaces and weak Morrey spaces2021

    • Author(s)
      Naoya Hatano, Masahiro Ikeda, Isao Ishikawa and Yoshihiro Sawano
    • Journal Title

      Journal of Inequalities and Applications

      Volume: 未定 Issue: 1

    • DOI

      10.1186/s13660-021-02599-7

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Small data blow-up for the weakly coupled system of the generalized Tricomi equation with multiple propagation speed2021

    • Author(s)
      Masahiro Ikeda, Jiayun Lin and Ziheng Tu
    • Journal Title

      Journal of Evolution Equations

      Volume: 未定

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ridge Regression with Over-parametrized Two-Layer Networks Converge to Ridgelet Spectrum2021

    • Author(s)
      Sho Sonoda, Isao Ishikawa and Masahiro Ikeda
    • Journal Title

      Proceedings of The 24th International Conference on Artificial Intelligence and Statistics

      Volume: 130

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] ハイパーグラフ上の熱とそのネットワーク解析への応用2021

    • Author(s)
      池田 正弘
    • Journal Title

      日本応用数理学論文誌

      Volume: 31-2

    • NAID

      130008094866

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Global well-posedness below the ground state for the nonlinear Schr\"odinger equation with a linear potential2020

    • Author(s)
      Masaru Hamano and Masahiro Ikeda
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 148 Issue: 12 Pages: 5193-5207

    • DOI

      10.1090/proc/15161

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Small data blow-up for the wave equation with a time-dependent scale invariant damping and a cubic convolution for slowly decaying initial data2020

    • Author(s)
      Masahiro Ikeda, Tomoyuki Tanaka and Kyohei Wakasa
    • Journal Title

      Nonlinear Analysis

      Volume: 200 Pages: 112057-112057

    • DOI

      10.1016/j.na.2020.112057

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Krylov subspace method for nonlinear dynamical systems with random noises2020

    • Author(s)
      Yuka Hashimoto, Isao Ishikawa, Masahiro Ikeda, Yoichi Matsuo and Yoshinobu Kawahara
    • Journal Title

      Journal of Machine Learning Research

      Volume: 172

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Small data blow-up of semi-linear wave equation with scattering dissipation and time-dependent mass2020

    • Author(s)
      Masahiro Ikeda, Ziheng Tu and Kyohei Wakasa
    • Journal Title

      Evolution Equations and Control Theory

      Volume: 未定 Issue: 2 Pages: 515-515

    • DOI

      10.3934/eect.2021011

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Coupling-based invertible neural networks are universal diffeomorphism approximator2020

    • Author(s)
      Takeshi Teshima, Isao Ishikawa, Koichi Tojo, Kenta Oono, Masahiro Ikeda and Masashi Sugiyama
    • Journal Title

      Advances in Neural Information Processing Systems

      Volume: 33

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Hypergraph Clustering Based on PageRank2020

    • Author(s)
      Yuuki Takai, Atsushi Miyauchi, Masahiro Ikeda and Yuichi Yoshida
    • Journal Title

      26nd ACM SIGKDD Conference on Knowledge Discovery and Data mining (KDD)

      Volume: 26

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Universal approximation property of neural ordinary differential equations2020

    • Author(s)
      Takeshi Teshima, Koichi Tojo, Masahiro Ikeda, Isao Ishikawa and Kenta Oono
    • Journal Title

      NeurIPS 2020 Workshop: Differential Geometry meets Deep Learning

      Volume: 未定

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Characterization of the ground state to the inter critical NLS with a linear potential by the viral functional2020

    • Author(s)
      Masaru Hamano, Masahiro Ikeda
    • Journal Title

      Advances in Harmonic Analysis and Partial Differential Equations

      Volume: -

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Scattering for the one-dimensional Klein-Gordon equation with exponential nonlinearity2020

    • Author(s)
      Masahiro Ikeda, Takahisa Inui, Mamoru Okamoto
    • Journal Title

      Journal of Hyperbolic Differential Equations

      Volume: -

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] On the existence and nonexistence of global solutions for certain semilinear exterior problems with nontrivial Robin boundary conditions2020

    • Author(s)
      Masahiro Ikeda, Mohamed Jleli, Bessem Samet
    • Journal Title

      Journal of Differential Equations

      Volume: 269 Issue: 1 Pages: 583-594

    • DOI

      10.1016/j.jde.2019.12.015

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Global dynamics below the ground state for the focusing Schr\"odinger equation with a potential2019

    • Author(s)
      Masaru Hamano, Masahiro Ikeda
    • Journal Title

      Journal of Evolution Equations

      Volume: - Issue: 3 Pages: 1131-1172

    • DOI

      10.1007/s00028-019-00547-z

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Global well-posedness for the semilinear wave equation with time dependent damping in the overdamping case2019

    • Author(s)
      Ikeda Masahiro、Wakasugi Yuta
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 148 Issue: 1 Pages: 157-172

    • DOI

      10.1090/proc/14297

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Sharp lifespan estimates of blowup solutions to semi-linear wave equations with time-dependent effective damping2019

    • Author(s)
      Ikeda Masahiro、Sobajima Motohiro、Wakasugi Yuta
    • Journal Title

      Journal of Hyperbolic Differential Equations

      Volume: 16 Issue: 03 Pages: 495-517

    • DOI

      10.1142/s0219891619500176

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Blow-up phenomena of semilinear wave equations and their weakly coupled systems2019

    • Author(s)
      Masahiro Ikeda, Motohiro Sobajima, Kyohei Wakasa
    • Journal Title

      Journal of Differential Equations

      Volume: 267 Issue: 9 Pages: 5165-5201

    • DOI

      10.1016/j.jde.2019.05.029

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Hardy-H\enon型半線型熱方程式の解の無条件一意性と非一意性2023

    • Author(s)
      千頭 昇, 池田 正弘, 谷口 晃一, Slim Tayachi
    • Organizer
      日本数学会・2023年度年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Besov空間上の合成作用素の有界性2023

    • Author(s)
      池田 正弘, 石川 勲, 谷口 晃一
    • Organizer
      日本数学会・2023年度年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Global dynamics below a threshold for the nonlinear Schr\"odinger equations with the Kirchhoff boundary and the repulsive Dirac delta boundary on a star graph2023

    • Author(s)
      池田 正弘, 戍亥 隆恭, 浜野 大, 清水 一慶
    • Organizer
      日本数学会・2023年度年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 微分型の非線形項を持つ非線形シュレディンガー方程式系の基底状態の存在と安定性について2023

    • Author(s)
      平山 浩之, 池田 正弘
    • Organizer
      日本数学会・2023年度年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Lp -Lq estimate for the damped wave equation and the critical exponent for the nonlinear problem with slowly decaying data2022

    • Author(s)
      Masahiro Ikeda
    • Organizer
      Workshop on Evolution Equations
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mass-energy threshold dynamics for the focusing NLS with inverse-power potential2022

    • Author(s)
      Masahiro Ikeda
    • Organizer
      seminario di Analisi Matematica Sapienza Universit\'e di Rome
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] On stability and instability of standing waves for 2d-nonlinear Schr\"odinger equations with point interaction2022

    • Author(s)
      Masahiro Ikeda
    • Organizer
      Trials in Wave Turbulance: from random waves to kinetic equations
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] On stability and instability of standing waves for 2d-nonlinear Schr\"odinger equations with point interaction2022

    • Author(s)
      Masahiro Ikeda
    • Organizer
      Mathematical Analysis of Nonlinear Dispersive and Wave Equations -In honor of Professor Tohru Ozawa's 60th birthday
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 群畳み込みニューラルネットに対するリッジレット変換2022

    • Author(s)
      園田 翔, 石川 勲, 池田 正弘
    • Organizer
      第25回情報論的学習理論, ワークショップ(IBIS2022)
    • Related Report
      2022 Annual Research Report
  • [Presentation] Global dynamics of Mass-Energy threshold for NLS with an inverse-power potential2022

    • Author(s)
      Alex Hernandez Ardila, 浜野 大, 池田 正弘
    • Organizer
      日本数学会・2022年度秋季総合分科会
    • Related Report
      2022 Annual Research Report
  • [Presentation] On global existence and asymptotic behavior for nonlinear damped wave equations on measure spaces2022

    • Author(s)
      池田 正弘, 谷口 晃一, 若杉 勇太
    • Organizer
      日本数学会・2022年度秋季総合分科会
    • Related Report
      2022 Annual Research Report
  • [Presentation] BBM--Burgersの初期値問題の解の漸近挙動2022

    • Author(s)
      福田 一貴, 池田 正弘
    • Organizer
      日本数学会・2022年度秋季総合分科会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Heat on the hypergraph containing vertices with given data2022

    • Author(s)
      深尾 武史, 池田 正弘, 内田 俊
    • Organizer
      日本数学会・2022年度秋季総合分科会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Heat on hypergrapn and its application to network analysis2022

    • Author(s)
      Masahiro Ikeda
    • Organizer
      SIAM Conference on Analysis of Partial Differential Equations (PD22)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 逆冪乗型ポテンシャルをもつ非線形シュレディンガー方程式の爆発解について2022

    • Author(s)
      浜野 大, 池田 正弘
    • Organizer
      日本数学会・2022年度年会
    • Related Report
      2021 Research-status Report
  • [Presentation] 点相互作用を持つ2次元非線形シュレディンガー方程式の定在波解の安定性と不安定2022

    • Author(s)
      深谷 法良, Vladimir. Georgiev, 池田 正弘
    • Organizer
      日本数学会・2022年度年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Nonlinear evolution equation associated with Hypergraph Laplacian2021

    • Author(s)
      池田 正弘, 内田 俊
    • Organizer
      日本数学会・2021年度秋季総合分科会
    • Related Report
      2021 Research-status Report
  • [Presentation] 長距離型ポテンシャルをもつ非線形シュレディンガー方程式の散乱解について2021

    • Author(s)
      浜野 大, 池田 正弘
    • Organizer
      日本数学会・2021年度秋季総合分科会
    • Related Report
      2021 Research-status Report
  • [Presentation] Optimal well-posedness of Hardy-H'enon parabolic equation2021

    • Author(s)
      千頭 昇, 池田 正弘, 谷口晃一
    • Organizer
      日本数学会・2021年度秋季総合分科会
    • Related Report
      2021 Research-status Report
  • [Presentation] ハイパーグラフ上の熱とそのネットワーク解析への応用2021

    • Author(s)
      池田 正弘
    • Organizer
      微分方程式とデータサイエンス研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] Gradient descent converges to ridgelet spectrum2021

    • Author(s)
      Sho Sonoda, Isao Ishikawa and Masahiro Ikeda
    • Organizer
      The 24th International Conference on Artificial Intelligence and Statistics(AISTATS)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 群畳み込みニューラルネットに対するリッジレット変換2021

    • Author(s)
      園田 翔, 石川勲, 池田 正弘
    • Organizer
      第24回情報論的学習理論, ワークショップ(IBIS2021)
    • Related Report
      2021 Research-status Report
  • [Presentation] 可逆ニューラルネットのSobolev空間における普遍性について2021

    • Author(s)
      手嶋毅志, 石川勲, 東條広一, 大野健太, 池田正弘, 杉山将
    • Organizer
      第24回情報論的学習理論, ワークショップ(IBIS2021)
    • Related Report
      2021 Research-status Report
  • [Presentation] RKHMの関数データへの応用2021

    • Author(s)
      橋本 悠香, 石川勲, 池田 正弘, 紅村冬大, 勝良健史, 河原吉伸
    • Organizer
      第24回情報論的学習理論, ワークショップ(IBIS2021)
    • Related Report
      2021 Research-status Report
  • [Presentation] 逆2乗ポテンシャルを持つ非線形クライン・ゴルドン方程式の定在波解の不安定性2021

    • Author(s)
      浜野 大, 池田 正弘
    • Organizer
      日本数学会・2021年度年会
    • Related Report
      2020 Research-status Report
  • [Presentation] A global universality of two-layer neural networks with ReLU activations2021

    • Author(s)
      波多野 修也, 池田 正弘, 石川 勲, 澤野 嘉宏
    • Organizer
      日本数学会・2021年度年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 非線形シュレディンガー方程式の定常問題と時間大域挙動2021

    • Author(s)
      池田 正弘
    • Organizer
      愛媛解析セミナー
    • Related Report
      2020 Research-status Report
  • [Presentation] ランダムウォークを用いたハイパーグラフにおけるローカルコミュニティと弱い紐帯の抽出2021

    • Author(s)
      岡 亮, 高井 勇輝, 松本 直己, 池田 正弘, 金子 晋丈
    • Organizer
      電子情報通信学会(IN)
    • Related Report
      2020 Research-status Report
  • [Presentation] Hypergraph Clustering via PageRank2020

    • Author(s)
      高井 勇輝, 宮内 敦史, 池田 正弘, 吉田 悠一
    • Organizer
      第23回情報論的学習理論, ワークショップ(IBIS2020)
    • Related Report
      2020 Research-status Report
  • [Presentation] 積分幾何学に基づくニューラルネットの新しい再生公式2020

    • Author(s)
      園田 翔, 石川 勲, 池田 正弘
    • Organizer
      第23回情報論的学習理論, ワークショップ(IBIS2020)
    • Related Report
      2020 Research-status Report
  • [Presentation] カップリングに基づく可逆神経回路網は微分同相写像の万能近似機である2020

    • Author(s)
      手嶋 毅志, 石川 勲, 東條 広一, 大野 健太, 池田 正弘, 杉山 将
    • Organizer
      第23回情報論的学習理論ワークショップ(IBIS2020)
    • Related Report
      2020 Research-status Report
  • [Presentation] Reproducing kernel Hilbert C*-moduleによる多変量データの解析2020

    • Author(s)
      橋本 悠香, 石川 勲, 池田 正弘, 紅村 冬大, 勝良 健史, 河原 吉伸
    • Organizer
      第23回情報論的学習理論ワークショップ(IBIS2020)
    • Related Report
      2020 Research-status Report
  • [Presentation] オーバーパラメトライズされた有限ニューラルネットの最適解2020

    • Author(s)
      園田 翔, 石川 勲, 池田 正弘
    • Organizer
      第23回情報論的学習理論, ワークショップ(IBIS2020)
    • Related Report
      2020 Research-status Report
  • [Presentation] 解析的な正定値関数に付随する再生核Hilbert空間上の合成作用素の有界性について2020

    • Author(s)
      池田 正弘, 石川 勲, 澤野 嘉宏
    • Organizer
      日本数学会・2020年度秋季総合分科会
    • Related Report
      2020 Research-status Report
  • [Presentation] モレー空間における合成作用素の有界性について2020

    • Author(s)
      波多野 修也, 池田 正弘, 石川 勲, 澤野 嘉宏
    • Organizer
      日本数学会・2020年度秋季総合分科会
    • Related Report
      2020 Research-status Report
  • [Presentation] Well-posedness of the fourth-order Schr\"odinger equation with derivative nonlinearities2020

    • Author(s)
      平山 浩之, 池田 正弘, 田中 智之
    • Organizer
      日本数学会・2020年度秋季総合分科会
    • Related Report
      2020 Research-status Report
  • [Presentation] 逆冪乗型ポテンシャルを持つ非線形シュレディンガー方程式の初期値の条件の同値性について2020

    • Author(s)
      浜野 大, 池田 正弘
    • Organizer
      日本数学会・2020年度秋季総合分科会
    • Related Report
      2020 Research-status Report
  • [Presentation] Hardy-H\'enon型半線型熱方程式の解の挙動2020

    • Author(s)
      千頭 昇, 池田 正弘, 谷口 晃一
    • Organizer
      日本数学会・2020年度秋季総合分科会
    • Related Report
      2020 Research-status Report
  • [Presentation] 非線形力学系から生成される時系列データ間の作用素論的側面からの研究2020

    • Author(s)
      池田 正弘
    • Organizer
      第74回 京都大学応用数学セミナー(KUAMS)
    • Related Report
      2020 Research-status Report
  • [Presentation] Test function method for blow-up phenomena of semilinear wave equations and their weakly coupled system2019

    • Author(s)
      Masahiro Ikeda
    • Organizer
      2019 Workshop on Geometry and Nonlinear Partial Differential Equations
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Blow-up phenomena of semilinear wave equations and their weakly coupled system2019

    • Author(s)
      Masahiro Ikeda
    • Organizer
      Fall Southeastern Sectional Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Exact Recovery of latent convex tensor decomposition under Reshuffling2019

    • Author(s)
      Masahiro Ikeda, Isao Ishikawa, Chao Li, Xiao-Yang Liu, Qibin Zhao and Ning Zheng
    • Organizer
      Workshop on low-rank models and application
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Finding Cheeger Cuts in Hypergraphs via Heat Equation2019

    • Author(s)
      Masahiro Ikeda
    • Organizer
      Joint Workshop of BBDC, BZML and RIKEN AIP
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Low-regularity well-posedness of fourth order Schr\"dinger equation with derivative nonlinearities2019

    • Author(s)
      Masahiro Ikeda
    • Organizer
      Seminars at Peking University
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Blow-up phenomena of semilinear wave equations and their weakly coupled system2019

    • Author(s)
      Masahiro Ikeda
    • Organizer
      12th ISAAC Congress
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Finding Cheeger Cuts in Hypergraphs via Heat equation2019

    • Author(s)
      Masahiro Ikeda
    • Organizer
      The 14th SIAM East Asian Section Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Finding Cheeger Cuts in Hypergraphs via Heat equation2019

    • Author(s)
      Masahiro Ikeda
    • Organizer
      Taiwan Machine Learning Workshop in June
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Well-posedness of the fourth-order Schr\"odinger equation with derivative nonlinearities2019

    • Author(s)
      Masahiro Ikeda
    • Organizer
      Colloquium at National Cheng Kung University
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Global well-posedness for the wave equation with a time-dependent scale invariant damping and a cubic convolution2019

    • Author(s)
      池田 正弘, 田中 智之, 若狭 恭平
    • Organizer
      日本数学会・2020年度年会
    • Related Report
      2019 Research-status Report
  • [Presentation] ポテンシャル項を持つ非線形シュレディンガー方程式の定常問題について2019

    • Author(s)
      浜野 大, 池田 正弘
    • Organizer
      日本数学会・2020年度年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 再生核ヒルベルト空間上のPerron-Frobenius作用素を用いた非線形力学系間の比較について2019

    • Author(s)
      池田 正弘
    • Organizer
      京都大学NLPDEセミナー
    • Related Report
      2019 Research-status Report
  • [Presentation] ランダム力学系の距離について2019

    • Author(s)
      石川 勲, 田中 章詞, 池田 正弘, 河原 吉伸
    • Organizer
      第22回情報論的学習理論
    • Related Report
      2019 Research-status Report
  • [Presentation] ノイズ付き非線形力学系のためのKrylov部分空間法2019

    • Author(s)
      橋本 悠香, 石川 勲, 池田 正弘, 松尾 洋一, 河原 吉伸
    • Organizer
      第22回情報論的学習理論
    • Related Report
      2019 Research-status Report
  • [Presentation] ReLu深層ニューラルネットワークの一般化されたBesov空間での関数近似能力について2019

    • Author(s)
      谷口 晃一, 池田 正弘, 園田 翔, 大野 健太, 鈴木 大慈
    • Organizer
      第22回情報論的学習理論
    • Related Report
      2019 Research-status Report
  • [Presentation] Dissipation and blow-up for semilinear heat equations in general energy spaces2019

    • Author(s)
      池田 正弘, 谷口 晃一
    • Organizer
      日本数学会・2019年度秋季総合分科会
    • Related Report
      2019 Research-status Report
  • [Remarks] Masahiro Ikeda's page

    • URL

      https://sites.google.com/site/masahiroikedamath/home

    • Related Report
      2020 Research-status Report 2019 Research-status Report
  • [Patent(Industrial Property Rights)] 関係性抽出装置及び関係性 抽出方法2020

    • Inventor(s)
      橋本悠香,石川勲,池田正弘,河原吉伸,勝良健史,紅村冬大
    • Industrial Property Rights Holder
      橋本悠香,石川勲,池田正弘,河原吉伸,勝良健史,紅村冬大
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] 異常検知装置、異常検知方法、及び プログラム2019

    • Inventor(s)
      橋本悠香, 石川勲, 池田正弘, 河原吉伸, 松尾洋一
    • Industrial Property Rights Holder
      橋本悠香, 石川勲, 池田正弘, 河原吉伸, 松尾洋一
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Related Report
      2020 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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