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2021 Fiscal Year Annual Research Report

古典場の理論における微分型相互作用の数学解析

Research Project

Project/Area Number 19H00644
Research InstitutionWaseda University

Principal Investigator

小澤 徹  早稲田大学, 理工学術院, 教授 (70204196)

Co-Investigator(Kenkyū-buntansha) 田中 和永  早稲田大学, 理工学術院, 教授 (20188288)
町原 秀二  埼玉大学, 理工学研究科, 教授 (20346373)
BEZ NEAL  埼玉大学, 理工学研究科, 教授 (30729843)
Project Period (FY) 2019-04-01 – 2024-03-31
Keywords調和解析 / 漸近解析
Outline of Annual Research Achievements

微分型シュレディンガー方程式をはじめとする微分型相互作用を持つ古典場模型の非線型偏微分方程式は、ピカール逐次近似の枠組において、必然的に微分の損失を伴うため、その回避を巡って方程式に応じた個別の方法論が提案されているが、未だに本質的な理解に至っていない。本研究の目的は、近年の微分型シュレディンガー方程式の初期値問題の時間大域的存在を保障する新しい閾値の変分解析的理解を足掛かりとして、微分型相互作用の大域的構造を(a)漸近解析、(b)調和解析、(c)変分解析の三つの方法論に基づいて明らかにする事である。今年度は、半線型構造の枠組みにおける微分型相互作用の研究を取りまとめた。具体的には、半線型分散方程式を対象とした研究においては、自己相似解・非線型ポテンシャルの研究の取りまとめを行い、分散構造の研究を行った。特に、自己相似性の下では振幅函数と位相函数との間に成立する微分方程式を見出し、そのかいを用いて自己相似解を構成することが出来た。また、トーラス上での微分型相互作用の構造について、フーリエ展開の視点から研究を進め、相互作用のゲージ条件の有無が時間大域解の存在非存在と密接な関係をもつことを明らかにした。
研究班ごとの実施状況は、(a)漸近解析の方法論による自己相似解の研究に加えて、分散構造の研究、(b)調和解析の方法論による非線型ポテンシャルの研究、ならびに特性法の函数空間論的定式化に加えて、分散構造の研究、(c)変分解析の方法論による輪郭分解の基礎理論の研究に加えて、ハミルトン構造の研究をそれぞれ進めた。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

新型コロナウイルスの影響による規制は緩和されてきたため、国内外の研究者と直接対面しての研究討論が次第に再開されるようになってきた。おおむね順調に進展している。

Strategy for Future Research Activity

新型コロナウイルスの影響以前の研究推進方策を再開し、研究推進を図る。特に、国内外の研究者が参加する研究集会を利用して一層の活発な研究討論を図る計画である。

  • Research Products

    (28 results)

All 2022 2021 Other

All Int'l Joint Research (4 results) Journal Article (15 results) (of which Int'l Joint Research: 14 results,  Peer Reviewed: 15 results,  Open Access: 9 results) Presentation (7 results) (of which Int'l Joint Research: 5 results,  Invited: 7 results) Book (1 results) Remarks (1 results)

  • [Int'l Joint Research] 南京林業大学/Beijing Normal University/Fujian Normal University(中国)

    • Country Name
      CHINA
    • Counterpart Institution
      南京林業大学/Beijing Normal University/Fujian Normal University
  • [Int'l Joint Research] Jeonbuk National University/Chunbuk National University/Ewha Womans University(韓国)

    • Country Name
      KOREA (REP. OF KOREA)
    • Counterpart Institution
      Jeonbuk National University/Chunbuk National University/Ewha Womans University
  • [Int'l Joint Research] Universita degli Studi di Bari Aldo Moro(イタリア)

    • Country Name
      ITALY
    • Counterpart Institution
      Universita degli Studi di Bari Aldo Moro
  • [Int'l Joint Research] University of Birmingham(英国)

    • Country Name
      UNITED KINGDOM
    • Counterpart Institution
      University of Birmingham
  • [Journal Article] Multiple solutions for the nonlinear Choquard equation with even or odd nonlinearities2022

    • Author(s)
      S. Cingolani, M. Gallo, K. Tanaka
    • Journal Title

      Calculus of Variations and Partial Differential Equations

      Volume: 61 Pages: -

    • DOI

      10.1007/s00526-021-02182-4

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Small data scattering of 2d Hartree type Dirac equations2022

    • Author(s)
      Y. Cho, K. Lee, T. Ozawa
    • Journal Title

      Journal of Mathematical Analysis and Applications

      Volume: 506 Pages: 125549~125549

    • DOI

      10.1016/j.jmaa.2021.125549

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Zakharov system in two space dimensions2022

    • Author(s)
      T. Ozawa, K. Tomioka
    • Journal Title

      Nonlinear Analysis

      Volume: 214 Pages: 112532~112532

    • DOI

      10.1016/j.na.2021.112532

    • Peer Reviewed / Open Access
  • [Journal Article] Small Data Scattering of Hartree Type Fractional Schr\"odinger Equations in a Scaling Critical Space2021

    • Author(s)
      Y. Cho, T. Ozawa, C. Yang
    • Journal Title

      Funkcialaj Ekvacioj

      Volume: 64 Pages: 1~15

    • DOI

      10.1619/fesi.64.1

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Regularity Criteria for a Ginzburg-Landau-Navier-Stokes System2021

    • Author(s)
      J. Fan, T. Ozawa
    • Journal Title

      Funkcialaj Ekvacioj

      Volume: 64 Pages: 349~360

    • DOI

      10.1619/fesi.64.349

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A note on 2D Navier-Stokes equations2021

    • Author(s)
      J. Fan, T. Ozawa
    • Journal Title

      Partial Differential Equations and Applications

      Volume: 2 Pages: -

    • DOI

      10.1007/s42985-021-00129-0

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Uniform Regularity for a Compressible Gross-Pitaevskii-Navier-Stokes System2021

    • Author(s)
      J. Fan, T. Ozawa
    • Journal Title

      Part of the Springer Proceedings in Mathematics & Statistics book series (PROMS,volume 346)

      Volume: 346 Pages: 95~102

    • DOI

      10.1007/978-981-33-4822-6_3

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A note on bilinear estimates in the homogeneous Triebel-Lizorkin spaces2021

    • Author(s)
      J. Fan, T. Ozawa
    • Journal Title

      RIMS Kokyuroku Bessatsu

      Volume: B88 Pages: 147-150

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On fractional Schr\"odinger equations with Hartree type nonlinearities2021

    • Author(s)
      S. Cingolani, M. Gallo, K. Tanaka
    • Journal Title

      Mathematics in Engineering

      Volume: 4 Pages: 1~33

    • DOI

      10.3934/mine.2022056

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Erratum: Normalized solutions for fractional nonlinear scalar field equations via Lagrangian formulation (2021 Nonlinearity 34 4017)2021

    • Author(s)
      S. Cingolani, M. Gallo, K. Tanaka
    • Journal Title

      Nonlinearity

      Volume: 34 Pages: C3~C3

    • DOI

      10.1088/1361-6544/ac166f

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Normalized solutions for fractional nonlinear scalar field equations via Lagrangian formulation2021

    • Author(s)
      S. Cingolani, M. Gallo, K. Tanaka
    • Journal Title

      Nonlinearity

      Volume: 34 Pages: 4017~4056

    • DOI

      10.1088/1361-6544/ac0166

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ground State Solutions for the Nonlinear Choquard Equation with Prescribed Mass2021

    • Author(s)
      S. Cingolani, K. Tanaka
    • Journal Title

      “Geometric properties for parabolic and elliptic PDEs”, Springer INdAM Ser.

      Volume: 47 Pages: 23~41

    • DOI

      10.1007/978-3-030-73363-6_2

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Deformation Argument under PSP Condition and Applications2021

    • Author(s)
      S. Cingolani, K. Tanaka
    • Journal Title

      Analysis in Theory and Applications

      Volume: 37 Pages: 191~208

    • DOI

      10.4208/ata.2021.pr80.03

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Semi-classical states for logarithmic Schr\"odinger equations2021

    • Author(s)
      N. Ikoma, K. Tanaka, Z.-Q. Wang, C. Zhang
    • Journal Title

      Nonlinearity

      Volume: 34 Pages: 1900~1942

    • DOI

      10.1088/1361-6544/abd52a

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Higher order transversality in harmonic analysis2021

    • Author(s)
      J. Bennett, N. Bez
    • Journal Title

      RIMS Kokyuroku Bessatsu

      Volume: B88 Pages: 75-103

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] プラズマ現象の数学的理解2022

    • Author(s)
      T. Ozawa
    • Organizer
      日本物理学会第77回年次大会 プラズマサイエンスの新展開 シンポジウム講演
    • Invited
  • [Presentation] Deformation Argument under PSP Condition and Applications2021

    • Author(s)
      K. Tanaka
    • Organizer
      Thematic Session: Variational Equations and Applications to Differential Equations, 33o Col´oquio Brasileiro de Matem´atica, IMPA
    • Int'l Joint Research / Invited
  • [Presentation] Spherical harmonics and Hardy's inequalities2021

    • Author(s)
      S. Machihara
    • Organizer
      2021 RIMS共同研究(公開型)「量子場の数理とその周辺」
    • Int'l Joint Research / Invited
  • [Presentation] Pointwise convergence for the Schroedinger equation with orthonormal initial data2021

    • Author(s)
      N. Bez
    • Organizer
      8th European Congress of Mathematics minisymposium “Harmonic Analysis and Partial Differential Equations”
    • Int'l Joint Research / Invited
  • [Presentation] Dispersive estimates for the wave equation2021

    • Author(s)
      N. Bez
    • Organizer
      Harmonic Analysis and Wave Phenomena
    • Int'l Joint Research / Invited
  • [Presentation] The nonlinear Brascamp-Lieb inequality2021

    • Author(s)
      N. Bez
    • Organizer
      MSJ-KMS Joint Meeting
    • Int'l Joint Research / Invited
  • [Presentation] Brascamp-Liebの不等式の安定性 (2022年度日本数学会賞春季賞受賞講演)2021

    • Author(s)
      N. Bez
    • Organizer
      日本数学会2022年度年会
    • Invited
  • [Book] Proceedings of 46th Sapporo Symposium on Partial Differential Equations2021

    • Author(s)
      S. Ei, Y. Giga, N. Hamamuki, S. Jimbo, H. Kubo, H. Kuroda, Y. Liu, T. Ozawa, T. Sakajo, and K. Tsutaya (Eds.)
    • Total Pages
      108
    • Publisher
      Hokkaido University Technical Report Series in Mathematics
  • [Remarks] 早稲田大学理工学術院先進理工学部応用物理学科 小澤 徹 研究室

    • URL

      http://www.ozawa.phys.waseda.ac.jp/index2.html

URL: 

Published: 2023-12-25  

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