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実解析学における関数空間の研究および偏微分方程式への応用

Research Project

Project/Area Number 05J11230
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Basic analysis
Research InstitutionThe University of Tokyo

Principal Investigator

澤野 嘉宏  東京大学, 大学院数理科学研究科, 特別研究員(PD)

Project Period (FY) 2005 – 2007
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2006: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2005: ¥900,000 (Direct Cost: ¥900,000)
KeywordsBesov, Triebel-Lizorkin空間 / Radon測度 / 関数空間の分解 / Modulation空間 / Morrey空間 / 極大作用素 / Sharp-極大作用素 / 偏微分方程式への応用 / 分数積分作用素 / Sharp-maximal operator / Triebel-Lizorkin、Besov空間 / 特殊関数微分方程式 / ベクトル値
Research Abstract

1.Non-douling測度の関数空間上の解析は、Campanato空間,Besov-Morrey空間,Triebel-Lizorkin-Morrey空間などMorrey空間に関連する関数空間を調べた.Littlewood-Paley分解などを用いた関数空間,2進極大作用素を用いた極大不等式などを研究した.また,分数積分作用素を一般の測度に対して定義して,その有界性を調べた.
2.Besov, Trielbel-Lizorkin型の関数空間の解析をした.Morrey空間とこれらの関数空間の混合であるBesov-Morrey空間,Triebel-Lizorkin-Morrey空間の関数空間の元の"基底"を求めて展開式を提唱した.特別な場合としてMorrey空間の滑らかな関数の線形結合の極限としての表示を得た.また,偏微分方程式への応用などをするべく,これらの道具を活用した.
3.可積分関数のFourier変換の重要定理として知られているRiemann-Lebesgueの定理を精密化した.また,上述の分解法と絡めて特異性を持つ関数のFourier変換像に関して詳細な結果を得た.
4.Modulation空間に関して分子の定義とともに分子分解を提唱した.応用として関数空間の補間,双対空間の特徴づけなどを行った.

Report

(2 results)
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (11 results)

All 2006 2005 Other

All Journal Article (11 results)

  • [Journal Article] A vector-valued sharp maximal inequality on the Morrey spaces with non-doubling measures2006

    • Author(s)
      澤野嘉宏
    • Journal Title

      Georgian Mathematical Journal 13

      Pages: 153-172

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Equivalent norms for the Morrey spaces with non-doubling measures2006

    • Author(s)
      澤野嘉宏
    • Journal Title

      Far East J.Math.Sci, 22-3

      Pages: 387-404

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Limiting case of the boundedness of fractional integral operators on non-homogeneous space2006

    • Author(s)
      澤野嘉宏
    • Journal Title

      Journal of inequalites and applications 文章ID92470

      Pages: 16-16

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A vector-valued sharp maximal inequality on the Morrey spaces with non-doubling measures2006

    • Author(s)
      Yoshihiro Sawano
    • Journal Title

      Georgean Mathematical Journal (出版予定)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] $1^q$-valued extension of the fractional maximal operators for non-doubling measures via potential operators2006

    • Author(s)
      Yoshihiro Sawano
    • Journal Title

      International Journal of Pure and Applied mathematical Journal (出版予定)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Sharp estimates of the modified Hardy Littlewood maximal operator on the nonhomogeneous space via covering lemmas2005

    • Author(s)
      Yoshihiro Sawano
    • Journal Title

      Hokkaido Mathematical Journal 34-no.2

      Pages: 435-458

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Morrey spaces for non-doubling measures.2005

    • Author(s)
      Yoshihiro Sawano, Hitoshi Tanaka
    • Journal Title

      Acta Mathematica Sinica 21-no.6

      Pages: 1535-1544

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Quarkonial decomposition suitable for functional-differential equations of delay type

    • Author(s)
      澤野嘉宏
    • Journal Title

      Mathematische Nachrichten (印刷中)

      Pages: 13-13

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Decompositions of Besov-Morrey spaces and Triebel-Lizorkin-Morrey spaces

    • Author(s)
      澤野嘉宏
    • Journal Title

      Mathematische Zeitschrift (印刷中)

      Pages: 35-35

    • Related Report
      2006 Annual Research Report
  • [Journal Article] On the Young Theorem for Amalgams and Besov Spaces

    • Author(s)
      澤野嘉宏
    • Journal Title

      International journal of Pure and Applied Mathematics (印刷中)

      Pages: 11-11

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Sharp maximal inequalities and commutators on Morrey spaces with non-doubling measures

    • Author(s)
      Yoshihiro Sawano, Hitoshi Tanaka
    • Journal Title

      Taiwanese Mathematical Journal (出版予定)

    • Related Report
      2005 Annual Research Report

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Published: 2005-04-01   Modified: 2024-03-26  

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