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2011 Fiscal Year Final Research Report

Rigidity and fixed-point property of finitely generated groups

Research Project

  • PDF
Project/Area Number 21540062
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Geometry
Research InstitutionKeio University (2010-2011)
Tohoku University (2009)

Principal Investigator

IZEKI Hiroyasu  慶應義塾大学, 理工学部, 教授 (90244409)

Co-Investigator(Renkei-kenkyūsha) NAYATANI Shin  名古屋大学, 大学院・多元数理科学研究科, 教授 (70222180)
Project Period (FY) 2009 – 2011
Keywords有限生成群 / 剛性 / 固定点性質 / 調和写像
Research Abstract

A group G is said to have rigidity, if the space accepting the action of G is very restrictive. A group G is said to have fixed-point property for a space Y, if every action of G fixes a point in Y. Recent development of mathematical research suggests that there are plenty of groups having rigidity. We proved that, in a certain model, groups have strong fixed-point property with high probability.

  • Research Products

    (8 results)

All 2011 2010 2009 Other

All Journal Article (5 results) Presentation (3 results)

  • [Journal Article] An approach to superrigidity and fixed-point theorems via harmonic maps2010

    • Author(s)
      Hiroyasu Izeki and Shin Nayatani
    • Journal Title

      Amer. Math. Soc. Transl

      Volume: 2 Pages: 135-160

  • [Journal Article] A fixed-point property of finitely generated groups and an energy of equivariant maps2010

    • Author(s)
      Hiroyasu Izeki
    • Journal Title

      Probabilistic Approach to Geometry

      Volume: 57 Pages: 171-188

  • [Journal Article] Fixed-point property of random groups2009

    • Author(s)
      Hiroyasu Izeki, Takefumi Kondo, and Shin Nayatani
    • Journal Title

      Annals of Global Analysis and Geom

      Volume: 35 Pages: 363-379

  • [Journal Article] Fixed-point property of random qutients by plain words

    • Author(s)
      Hiroyasu Izeki
    • Journal Title

      Groups, Geometry, and Dynamics

      Volume: (掲載決定)

  • [Journal Article] N-step energy of maps and fixed-point property of random groups, Groups, Geometry

    • Author(s)
      Hiroyasu Izeki, Takefumi Kondo, and Shin Nayatani
    • Journal Title

      Groups, Geometry, and Dynamics

      Volume: (掲載決定)

  • [Presentation] ランダム群の固定点性質2011

    • Author(s)
      井関裕靖
    • Organizer
      仙台シンポジウム2011
    • Place of Presentation
      東北大学大学院情報科学研究科
    • Year and Date
      2011-08-18
  • [Presentation] 同変写像のエネルギーと有限生成群の剛性2010

    • Author(s)
      井関裕靖
    • Organizer
      福岡微分幾何学研究会
    • Place of Presentation
      福岡大学
    • Year and Date
      2010-10-09
  • [Presentation] ランダム群の固定点性質2009

    • Author(s)
      井関裕靖
    • Organizer
      第56回幾何学シンポジウム
    • Place of Presentation
      佐賀大学
    • Year and Date
      2009-08-28

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Published: 2013-07-31  

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