• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Study of martingale spaces and martingale inequalities in view of real analysis

Research Project

Project/Area Number 16K05203
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Basic analysis
Research InstitutionOsaka Kyoiku University

Principal Investigator

Sadasue Gaku  大阪教育大学, 教育学部, 准教授 (40324884)

Co-Investigator(Kenkyū-buntansha) 中井 英一  茨城大学, 理工学研究科(理学野), 教授 (60259900)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsマルティンゲール / Morrey 空間 / 分数べき積分作用素 / 一般化分数べき作用素 / 解析学
Outline of Final Research Achievements

In this study, several fundamental properties of fractional integrals for martingale have been proved. Especially, necessary and sufficient conditions for the boundedness of the fractional integrals on martingale Morrey spaces have been obtained. Furthermore, necessary and sufficient conditions for the boundedness of commutators of the fractional integrals and multiplication operators have been proved.
In the process of the study, several definitions of fundamental spaces and operators have been modified, new spaces for martingale have been provided.
Thus, this study has a remarkable contributions on analytic theory for martingales.

Academic Significance and Societal Importance of the Research Achievements

マルティンゲールに対する実解析的な基礎理論は一時の停滞を終え、再び活発に研究され始めている。この研究動向のなかで、マルティンゲールに対する分数べき積分作用素や Morrey 空間などに正しい定義を与え、その基本性質の研究を着実に積み重ねたことが本研究の学術的意義である。
マルティンゲールの実解析的な基礎理論は、1960年代から1970年代にかけて盛んに研究され、それが1990年代に入って数理ファイナンス理論などへの応用が始まった。このことを見ると、基礎理論の充実を行った本研究は将来に社会的意義を持つことになると考えている。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (13 results)

All 2019 2018 2017 2016

All Journal Article (6 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results)

  • [Journal Article] Ccmmutators of fractional integrals2019

    • Author(s)
      E. Nakai and G. Sadasue
    • Journal Title

      Mathematical Inequalities & Applications

      Volume: 22 Issue: 2 Pages: 631-655

    • DOI

      10.7153/mia-2019-22-44

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A note on some martingale spaces2018

    • Author(s)
      G. Sadasue
    • Journal Title

      京都大学数理解析研究所講究録

      Volume: 2095 Pages: 64-69

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Martingale Besov spaces and martingale Triebel-Lizorkin spaces2018

    • Author(s)
      Gaku Sadasue
    • Journal Title

      Scientiae Mathematicae Japonicae

      Volume: -

    • NAID

      130007681532

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Some new properties concerning BLO martingales2017

    • Author(s)
      E. Nakai and G.Sadasue
    • Journal Title

      Tohoku mathematical journal

      Volume: 69 Pages: 183-194

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Characterizations of boundedness for generalized fractional integrals on martingale Morrey spaces2017

    • Author(s)
      Eiichi Nakai and Gaku Sadasue
    • Journal Title

      Mathematical Inequalities & Applications

      Volume: 20 Issue: 4 Pages: 929-947

    • DOI

      10.7153/mia-2017-20-58

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fractional integrals on martingale spaces2017

    • Author(s)
      Eiichi Nakai and Gaku Sadasue
    • Journal Title

      京都大学数理解析研究所講究録

      Volume: 2041

    • Related Report
      2017 Research-status Report
    • Open Access
  • [Presentation] Analysis on martingale Morrey spaces2018

    • Author(s)
      Gaku Sadasue
    • Organizer
      International Conference on Harmonic Analysis and Its Applications
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A note on some martingale spaces2018

    • Author(s)
      貞末 岳
    • Organizer
      関数空間の深化とその周辺
    • Related Report
      2017 Research-status Report
  • [Presentation] Commutators of fractional integrals on martingale Morrey spaces2018

    • Author(s)
      貞末 岳・中井 英一
    • Organizer
      日本数学会
    • Related Report
      2017 Research-status Report
  • [Presentation] Characterizations of boundedness for generalized fractional integrals on martingale Morrey spaces2017

    • Author(s)
      貞末 岳・中井 英一
    • Organizer
      日本数学会
    • Place of Presentation
      首都大学東京(東京都・八王子市)
    • Year and Date
      2017-03-26
    • Related Report
      2016 Research-status Report
  • [Presentation] Fractiona integrals on martingale Morrey spaces2017

    • Author(s)
      貞末 岳・中井 英一
    • Organizer
      関数空間の構造とその周辺
    • Place of Presentation
      京都大学数理解析研究所(京都府・京都市)
    • Year and Date
      2017-02-09
    • Related Report
      2016 Research-status Report
  • [Presentation] Fractional integrals on martingale spaces2017

    • Author(s)
      Gaku Sadasue
    • Organizer
      Harmonic Analysis and Applications in Tokyo 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Generalized fractional integrals on martingale Morrey spaces2016

    • Author(s)
      Gaku Sadasue
    • Organizer
      Harmonic Analysis and its Applications in Beijing 2016
    • Place of Presentation
      北京航空航天大学(中国・北京市)
    • Year and Date
      2016-10-01
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi