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調和解析による圧縮性粘性流体の臨界適切性理論の構築

Research Project

Project/Area Number 18J00557
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Mathematical analysis
Research InstitutionOsaka University

Principal Investigator

千頭 昇  大阪大学, 基礎工学研究科, 特別研究員(PD)

Project Period (FY) 2018-04-25 – 2021-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords適切性 / 臨界空間 / Besov 空間 / 圧縮性 Navier-Stokes 方程式 / 熱方程式 / 圧縮性粘性流体 / 臨界適切性 / 関数不等式
Outline of Annual Research Achievements

2019年度の研究により, 次の 3 点の成果が得られた. 1.) 圧縮性 Navier-Stokes-Korteweg 系に対する適切性及び時間減衰評価の確立. 2.) Hardy-Henon 型半線形熱方程式に対する臨界 Besov 空間における時間大域可解性. 3.) Hardy-Sobolev 臨界指数をもつ Hardy-Henon 型半線形熱方程式に対する解の大域的ダイナミクス.
1.) においては, 二層流体の相転移を記述する圧縮性 Navier-Stokes-Korteweg 系を臨界 Besov 空間において考察し, 時間大域可解性を示した. 特に, capillary tensor が存在しない通常の圧縮性粘性流体と異なり, 音速が零となる時も対応する線形化方程式が安定であり, 非線形問題に対しても小さな時間大域解が構成できることを明らかにした. 更に, 初期値に追加的な可積分性を課すことで最適な時間減衰評価を示した.
2.) においては, Besov 空間における一般的な冪乗型関数における合成関数の評価を確立し, Hardy-Henon 型半線形熱方程式に対して, 既存の適切性が成立する関数空間を拡張した. また, 臨界 Besov 空間の端点補完指数を取ることにより, 小さな前方自己相似解が構成を行った.
3.) Hardy-Sobolev 臨界指数をもつ非線形項に対して, 対応する初期値問題の解をエネルギー空間において構成した. また, 基底状態以下のエネルギーを持つ初期値に対して, 一意的な大域解のエネルギーがゼロに減衰するか, 有限時間または無限時間で爆発する場合の必要十分条件を考察した. 得られた結果は現在査読付き論文雑誌へ投稿準備中である.

Research Progress Status

翌年度、交付申請を辞退するため、記入しない。

Strategy for Future Research Activity

翌年度、交付申請を辞退するため、記入しない。

Report

(2 results)
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (17 results)

All 2019 2018

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (14 results) (of which Int'l Joint Research: 4 results,  Invited: 14 results)

  • [Journal Article] Composition estimates and well-posedness for Hardy?H?non parabolic equations in Besov spaces2019

    • Author(s)
      Chikami Noboru
    • Journal Title

      Journal of Elliptic and Parabolic Equations

      Volume: 5 Issue: 2 Pages: 215-250

    • DOI

      10.1007/s41808-019-00039-8

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Global well-posedness and time-decay estimates of the compressible Navier-Stokes-Korteweg system in critical Besov spaces2019

    • Author(s)
      Noboru Chikami and Takayuki Kobayashi
    • Journal Title

      Journal of Mathematical Fluid Mechanics

      Volume: 印刷中 Issue: 2 Pages: 1-32

    • DOI

      10.1007/s00021-019-0431-8

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] On Gagliardo-Nirenberg type inequalities in Fourier-Herz spaces2018

    • Author(s)
      Noboru Chikami
    • Journal Title

      Journal of Functional Analysis

      Volume: 275 Issue: 5 Pages: 1138-1172

    • DOI

      10.1016/j.jfa.2018.06.001

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] `Well-posedness and decay rates of the compressible Navier-Stokes-Korteweg system''2019

    • Author(s)
      千頭昇
    • Organizer
      名古屋微分方程式セミナー, 名古屋大学
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] ``Global well-posedness and time-decay estimates for the compressible Navier-Stokes-Korteweg system''2019

    • Author(s)
      千頭昇
    • Organizer
      RIMS研究集会「発展方程式論の新展開:数理理論と現象解析の協働」, 京都大学
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ``On Gagliardo-Nirenberg type inequality in Fourier-Lebesgue spaces and its application''2019

    • Author(s)
      千頭昇
    • Organizer
      「応用解析」研究会, 早稲田大学
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] ``Wellposedness and time decay of CNSK''2019

    • Author(s)
      千頭昇
    • Organizer
      「若手による流体力学の基礎方程式研究集会」, 名古屋大学
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] ``Well-posedness and stability for Hardy-H\'enon parabolic equations''2019

    • Author(s)
      千頭昇
    • Organizer
      VI Italian-Japanese Workshop ``Geometric properties for parabolic and elliptic PDE’s”, INDAM, Cortona, Italy
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ``Remarks on Gagliardo-Nirenberg type inequalities in Fourier-Herz spaces''2019

    • Author(s)
      千頭昇
    • Organizer
      Inhomogeneous Flows/ Asymptotic Models and Interfaces Evolution, CIRM, France
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Global well-posedness of the compressible Navier-Stokes-Korteweg system2019

    • Author(s)
      千頭 昇
    • Organizer
      Mathematics of Schr\"odinger Equations and Related Topics
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Well-posedness and time-decay estimates of CNSK2019

    • Author(s)
      千頭 昇
    • Organizer
      Seminars on Mathematical fluid Mechanics in OCU
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Remarks on Gagliardo-Nirenberg type inequalities in Fourier-Herz spaces2019

    • Author(s)
      千頭 昇
    • Organizer
      AMS Sectional Meeting
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Well-posedness for Hardy-H\'enon parabolic equations in Besov spaces2018

    • Author(s)
      千頭 昇
    • Organizer
      大阪大学微分方程式セミナー
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Some functional inequalities in Fourier-Herz spaces2018

    • Author(s)
      千頭 昇
    • Organizer
      南大阪応用数学セミナー
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Global well-posedness of the compressible Navier-Stokes-Korteweg system in critical Besov spaces2018

    • Author(s)
      千頭 昇
    • Organizer
      Partial Differential Equations for Social and Biological Events
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Well-posedness for Hardy-H\'enon parabolic equations in Besov spaces2018

    • Author(s)
      千頭 昇
    • Organizer
      Functional Inequalities and Nonlinear Analysis in OCU
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Global well-posedness of the compressible Navier-Stokes-Korteweg system2018

    • Author(s)
      千頭 昇
    • Organizer
      京都大学NLPDEセミナー
    • Related Report
      2018 Annual Research Report
    • Invited

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Published: 2018-05-01   Modified: 2024-03-26  

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