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2008 Fiscal Year Annual Research Report

群上のMarkov-Zariski位相の構造とコンパクト型位相群の収束性質の研究

Research Project

Project/Area Number 19540092
Research InstitutionEhime University

Principal Investigator

D.B. Shakhmatov  Ehime University, 理工学研究科, 教授 (90253294)

Co-Investigator(Kenkyū-buntansha) 野倉 嗣紀  愛媛大学, 理工学研究科, 教授 (00036419)
藤田 博司  愛媛大学, 理工学研究科, 講師 (60238582)
Keywordsトポロジー / 代数学 / 位相群 / コンパクト / 収束性
Research Abstract

1.群Gの部分集合からなる族Sを考える。族Sの濃度が連続体の濃度以下であるとき、Sに属する各集合Aに対して、AのMarkov-Zariski閉包と位相TにおけるAの閉包は一致するようなG上の群位相Tが存在することを証明した。また、(G,T)の完備化はコンパクト位相群になるようなTを構成した。
2.可換群Gの稠密可能な部分集合Aの性質を調べた。特に、ねじれ群Gの場合、AはMarkov-Zariski位相で稠密になるための、必要十分条件を得た。
3.群上のMarkov位相とZariski位相が一致するための、必要十分条件を得た。この条件を用いて、可換群の場合は、Markov位相とZariski位相が一致することを証明した。
4.連続選択関数の存在定理(Michael定理)を用いて、局所コンパクト位相群のsuitable setを構成した。

  • Research Products

    (10 results)

All 2009 2008 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (3 results) Remarks (1 results)

  • [Journal Article] Building suitable sets for locally compact groups by Means of continuous selections2009

    • Author(s)
      D. Shakhmatov
    • Journal Title

      Topology and its Applications 156

      Pages: 1216-1223

    • Peer Reviewed
  • [Journal Article] Weak regularity and consecutive topologizations and regularizations of pretopologies2009

    • Author(s)
      S. Dolecki, H. Kunzi, T. Nogura
    • Journal Title

      Topology and its Applications 156

      Pages: 1306-1314

    • Peer Reviewed
  • [Journal Article] Reflection principle characterizing groups in which all unconditionally closed sets are algebraic2008

    • Author(s)
      D. Dikranjan, D, Shakhmatov
    • Journal Title

      Journal of Group Theory 11

      Pages: 421-442

    • Peer Reviewed
  • [Journal Article] Selections and totally disconnected spaces2008

    • Author(s)
      V. Gutev, T. Nogura
    • Journal Title

      Topology and its Applications 155

      Pages: 824-829

    • Peer Reviewed
  • [Journal Article] Weak selections and flows in networks2008

    • Author(s)
      V. Gutev, T. Nogura
    • Journal Title

      Commentationes Mathematicae Universitatis Carolinae 49

      Pages: 824-829

    • Peer Reviewed
  • [Journal Article] Extensions of 2-point selections2008

    • Author(s)
      V. Gutev, S. Garcia-Ferreira, T. Nogura
    • Journal Title

      New Zealand Journal of Mathematics 38

      Pages: 1-8

    • Peer Reviewed
  • [Presentation] Strong S and L groups2008

    • Author(s)
      D. Shakhmatov
    • Organizer
      Advances in Set-theoretic Topology
    • Place of Presentation
      Cenre“Ettore Majoranana", Erice, Italy
    • Year and Date
      2008-06-18
  • [Presentation] A partial answer to a problem of M. Laczkowich concerning the difference property of Borel measurable functions2008

    • Author(s)
      H. Fuiita
    • Organizer
      Advances in Set-theoretic Topology
    • Place of Presentation
      Centre“Ettore Majoranana", Erice, Italy
    • Year and Date
      2008-06-18
  • [Presentation] Extreme selections and dimensions2008

    • Author(s)
      T. Nogura
    • Organizer
      Advances in Set-theoretic Topology
    • Place of Presentation
      Centre“Ettore Majoranana", Erice, Italy
    • Year and Date
      2008-06-10
  • [Remarks]

    • URL

      http://www.math.sci.ehime-u.ac.jp~dima/

URL: 

Published: 2010-06-11   Modified: 2016-04-21  

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