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Researches on spectral and scattering theory for magnetic Schr\"{o}dinger equation

Research Project

Project/Area Number 20K14328
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 12010:Basic analysis-related
Research InstitutionOkayama University (2024)
Ehime University (2020-2023)

Principal Investigator

Kawamoto Masaki  岡山大学, 異分野基礎科学研究所, 准教授 (40770631)

Project Period (FY) 2020-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsシュレディンガー方程式 / 非線形シュレディンガー方程式 / 散乱 / 電磁場 / 修正散乱 / 調和振動子 / 非線形シュレーディンガー方程式 / 磁場 / 漸近完全性 / ストリッカーツ評価式 / 伝播評価 / スペクトル・散乱理論 / 非線形散乱 / シュレーディンガー方程式 / 散乱理論 / スペクトル
Outline of Research at the Start

本研究では、重要な物理モデルであるにも関わらず多くの未解決問題を残している時間依存磁場中の量子力学系について、数学的な線形散乱理論の基礎を作り、さらに 非線形問題を考察する際に重要な役割を担う Strichartz 評価式を整備することで、線形散乱、スペクトル解析、非線形解析の研究への土台を作り上げる。また国内、国外での研究会で講演、また自身で研究会を開催し講演者の招致を行い、この研究分野の流布および多くの研究者と共同研究を実現する。また最大の難問、多体問題への進展を与える。また、これらの研究の中心であるフランスから研究者を招致し、国内での磁場の研究の活性化させ、ブレークスルーを生み出す。

Outline of Final Research Achievements

The Schrodinger equation in a magnetic field is a fundamental equation of quantum mechanics that describes important physical phenomena. However, due to its mathematical characteristics, it has been difficult to apply existing theoretical frameworks effectively. Nevertheless, through the my decomposition scheme, research on mathematical subjects such as linear and nonlinear scattering has been successfully carried out. As a result, sixteen papers, including those co-authored domestically, have been published in international journals, along with one paper co-authored internationally. In addition, the I have given numerous presentations both in Japan and abroad, significantly expanding the scope of collaborative research and successfully generating new lines of research.

Academic Significance and Societal Importance of the Research Achievements

非線形シュレディンガー方程式(NLS)の研究は大きな発展を遂げ、昨今は多様な数学的対象を取り込み問題の難化が著しい。我々の研究はそのNLSの研究への入り口としてとても参入が容易であり、実際、申請者は学生やポスドクの若手の研究者と多くの共同研究を行ってきた。本研究の発展により、若手の研究者の論文投稿やNLSの研究へ参入する入り口を広げる事で、今後益々、若手研究者がシュレディンガー方程式の研究分野で育つ事が期待され、於いては我が国の数学的研究力の底上げが実現出来ると期待している。

Report

(6 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (22 results)

All 2025 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (16 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 16 results,  Open Access: 1 results) Presentation (5 results)

  • [Int'l Joint Research] Bordeaux University(フランス)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Modified scattering for nonlinear Schr?dinger equations with long-range potentials2025

    • Author(s)
      Kawamoto Masaki、Mizutani Haruya
    • Journal Title

      Transactions of the American Mathematical Society

      Volume: 378 Issue: 5 Pages: 3625-3652

    • DOI

      10.1090/tran/9369

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Global well-posedness and scattering in weighted space for nonlinear Schr?dinger equations below the Strauss exponent without gauge-invariance2025

    • Author(s)
      Kawamoto Masaki、Masaki Satoshi、Miyazaki Hayato
    • Journal Title

      Mathematische Annalen

      Volume: 392 Issue: 1 Pages: 1051-1097

    • DOI

      10.1007/s00208-025-03121-w

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Modified scattering operator for nonlinear Schr?dinger equations with time-decaying harmonic potentials2025

    • Author(s)
      Kawamoto Masaki、Miyazaki Hayato
    • Journal Title

      Nonlinear Analysis

      Volume: 256 Pages: 113778-113778

    • DOI

      10.1016/j.na.2025.113778

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Long-range scattering for a critical homogeneous type nonlinear Schr?dinger equation with time-decaying harmonic potentials2023

    • Author(s)
      Kawamoto Masaki、Miyazaki Hayato
    • Journal Title

      Journal of Differential Equations

      Volume: 365 Pages: 127-167

    • DOI

      10.1016/j.jde.2023.04.009

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Nonexistence of wave operators via strong propagation estimates for Schr?dinger operators with sub-quadratic repulsive potentials2023

    • Author(s)
      Ishida Atsuhide、Kawamoto Masaki
    • Journal Title

      Journal of Mathematical Physics

      Volume: 64 Issue: 12 Pages: 123301-123301

    • DOI

      10.1063/5.0164176

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Asymptotic behavior of solutions to a dissipative nonlinear Schr?dinger equation with time-dependent harmonic potentials2023

    • Author(s)
      Kawamoto Masaki、Sato Takuya
    • Journal Title

      Journal of Differential Equations

      Volume: 345 Pages: 418-446

    • DOI

      10.1016/j.jde.2022.11.034

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Strichartz estimates for quadratic repulsive potentials2022

    • Author(s)
      Kawamoto Masaki、Yoneyama Taisuke
    • Journal Title

      Partial Differential Equations and Applications

      Volume: 3 Issue: 1

    • DOI

      10.1007/s42985-022-00150-x

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Asymptotic behavior for nonlinear Schr?dinger equations with critical time-decaying harmonic potential2021

    • Author(s)
      Kawamoto Masaki
    • Journal Title

      Journal of Differential Equations

      Volume: 303 Pages: 253-267

    • DOI

      10.1016/j.jde.2021.09.028

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Final state problem for nonlinear Schr?dinger equations with time-decaying harmonic oscillators2021

    • Author(s)
      Kawamoto Masaki
    • Journal Title

      Journal of Mathematical Analysis and Applications

      Volume: 503 Issue: 1 Pages: 125292-125292

    • DOI

      10.1016/j.jmaa.2021.125292

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] L^2-properties for linearized KdV equation around small solutions2021

    • Author(s)
      Kawamoto Masaki
    • Journal Title

      SUT Journal of Mathematics

      Volume: 56 Pages: 1-19

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Absence of embedded eigenvalues for Hamiltonian with crossed magnetic and electric fields2021

    • Author(s)
      Dimassi Mouez、Kawamoto Masaki、Petkov Vesselin
    • Journal Title

      Reviews in Mathematical Physics

      Volume: - Issue: 06 Pages: 2150020-2150020

    • DOI

      10.1142/s0129055x21500203

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Singularity for solutions of linearized KdV equations2020

    • Author(s)
      Kato Keiichi、Kawamoto Masaki、Nanbu Koichiro
    • Journal Title

      Journal of Mathematical Physics

      Volume: 61 Issue: 5 Pages: 051502-051502

    • DOI

      10.1063/1.5141516

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Existence and Nonexistence of Wave Operators for Time-Decaying Harmonic Oscillators2020

    • Author(s)
      Ishida Atsuhide、Kawamoto Masaki
    • Journal Title

      Reports on Mathematical Physics

      Volume: 85 Issue: 3 Pages: 335-350

    • DOI

      10.1016/s0034-4877(20)30040-9

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Strichartz Estimates for Schr?dinger Operators with Square Potential with Time-Dependent Coefficients2020

    • Author(s)
      Kawamoto Masaki
    • Journal Title

      Differential Equations and Dynamical Systems

      Volume: - Issue: 4 Pages: 827-845

    • DOI

      10.1007/s12591-020-00537-5

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Asyptotic behavior of solutions to nonlinear Schr?dinger equations with time-dependent harmonic potentials2020

    • Author(s)
      Kawamoto Masaki、Muramatsu Ryo
    • Journal Title

      Journal of Evolution Equations

      Volume: 21 Issue: 1 Pages: 699-723

    • DOI

      10.1007/s00028-020-00597-8

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Critical scattering in a time-dependent harmonic oscillator2020

    • Author(s)
      Ishida Atsuhide、Kawamoto Masaki
    • Journal Title

      Journal of Mathematical Analysis and Applications

      Volume: 492 Issue: 2 Pages: 124475-124475

    • DOI

      10.1016/j.jmaa.2020.124475

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Modified scattering for nonlinear Schrodinger equations with long-range potentials2024

    • Author(s)
      川本昌紀,水谷治哉
    • Organizer
      日本数学会 秋季分科会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Nonexistence of wave operators for sub-quadratic repulsive potential2023

    • Author(s)
      川本昌紀、石田敦英
    • Organizer
      日本数学会2023年度秋季分科会
    • Related Report
      2023 Research-status Report
  • [Presentation] 時間減衰する調和振動子を持つ非線形シュレディンガー方程式の修正散 乱作用素について2023

    • Author(s)
      川本昌紀、宮崎隼人
    • Organizer
      日本数学会2024年度春季分科会
    • Related Report
      2023 Research-status Report
  • [Presentation] 臨界係数を持つ時間減衰調和振動子に対する波動作用素の存在・非存在について2022

    • Author(s)
      川本昌紀、石田敦英
    • Organizer
      日本数学会秋季学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 時間減衰する調和振動子を持つ臨界斉次型非線形シュレディンガー方程式における長距離散乱について2022

    • Author(s)
      川本昌紀、宮崎隼人
    • Organizer
      日本数学会秋季学会
    • Related Report
      2022 Research-status Report

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Published: 2020-04-28   Modified: 2026-01-16  

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