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Research on 3-manifolds based on geometric techniques and its expanse

Research Project

Project/Area Number 19540083
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Geometry
Research InstitutionNara Women's University

Principal Investigator

KOBAYASHI Tsuyoshi  Nara Women's University, 大学院・人間文化研究科, 教授 (00186751)

Co-Investigator(Kenkyū-buntansha) YAMASHITA Yasushi  奈良女子大学, 理学部, 准教授 (70239987)
KATAGIRI Minnyou  奈良女子大学, 理学部, 准教授 (60263422)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2007: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords位相幾何 / 臨界リーマン計量 / Heegaard分解 / 結び目 / 3次元双曲幾何学 / 臨海リーマン計量 / メビウス変換 / トンネル数
Research Abstract

片桐ははリーマン計量全体の中の臨界リーマン計量に関して研究を行った. 山下は2元生成メビウス変換群と3次元双曲幾何学との関連について研究を行った。小林は三次元多様体のHeegaard分解, 写像類群を利用した流体の混合に関する研究を行った. これらに関して例えば, 高いHempel距離を持つHeegaard分解を許容する三次元多様体を境界で貼りあわせて得られる三次元多様体の既約なHeegaard分解は必ずこれらのHeegaard分解の融合(amalgamation)になっていることが分かった, 等の結果が得られた.

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report

Research Products

(26 results)

All 2009 2008 2007 Other

All Journal Article (12 results) (of which Peer Reviewed: 10 results) Presentation (10 results) Remarks (4 results)

  • [Journal Article] Knots with g(E(K))=2 and g(E(K # K # K))=6 and Morimoto's Conjecture2009

    • Author(s)
      T.Kobayashi, and Y.Rieck
    • Journal Title

      Topology and its Appl 156

      Pages: 1114-1117

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Knots with g(E(K))=2 and g(E(K #K #K))=6 and Morimoto's Conjecture2009

    • Author(s)
      T. Kobayashi, Y. Rieck
    • Journal Title

      Topology and its Appl. 156

      Pages: 1114-1117

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Seifert surfaces in open books, and a new coding algorithm for links2008

    • Author(s)
      R.Furihata, T.Kobayashi, and M.Hirasawa
    • Journal Title

      Bull. Lond. Math. Soc. 40

      Pages: 405-414

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] The amalgamation of high distance Heegaard splittings is always efficient2008

    • Author(s)
      T.Kobayashi, and Q.Ruifeng
    • Journal Title

      Math. Ann 341

      Pages: 707-715

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Knot exteriors with additive Heegaard genus and Morimoto's Conjecture2008

    • Author(s)
      T.Kobayashi, and Y.Rieck
    • Journal Title

      Algebraic & Geometric Topology 8

      Pages: 953-969

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Seifert surfaces in open books, and a new coding algthm for 1inks2008

    • Author(s)
      R. Furihata, T. Kobayashi, M. Hirasawa
    • Journal Title

      Bull. Lond. Math. Soc. 40

      Pages: 405-414

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The amalgamation of high distance Heegaard splittings is always efficient2008

    • Author(s)
      T. Kobayashi, Q. Rui feng
    • Journal Title

      Math. Ann. 341

      Pages: 707-715

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Knot exteriors with additive Heegaard genus and Morimoto's Conjecture2008

    • Author(s)
      T. Kobayash i, Y. Rieck
    • Journal Title

      Algebraic & Geometric Topology 8

      Pages: 953-969

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Punctured torus groups and 2-bridge knot groups(1)2007

    • Author(s)
      Y.Yamashita
    • Journal Title

      Lecture Notes in Mathematics 1909

      Pages: 1-262

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Realizing pseudo-Anosov egg beaters with simple mechanisms2007

    • Author(s)
      T. Kobayashi, and S.Umeda
    • Journal Title

      Proceedings of the International Workshop on Knot Theory for Scientific Objects held in Osaka

      Pages: 97-109

    • Related Report
      2008 Final Research Report
  • [Journal Article] Punctured torus groups and 2-bridge knot groups(1)2007

    • Author(s)
      Yasushi Yamashita
    • Journal Title

      Lecture Notes in Mathematics 1909

      Pages: 1-262

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Realizing pseudo-Anosov egg beaters with simple mechanisms2007

    • Author(s)
      Tsuyoshi Kobayashi
    • Journal Title

      Proceedings of the International Workshop on Knot Theory for Scientific Objects held in Osaka

      Pages: 97-109

    • Related Report
      2007 Annual Research Report
  • [Presentation] The word problem for the outer automorphism group of right-angled Artin groups2009

    • Author(s)
      Y.Rieck, Y.Yamashita
    • Organizer
      「リーマン面・不連続群論」研究集会
    • Place of Presentation
      大阪大学
    • Year and Date
      2009-01-12
    • Related Report
      2008 Final Research Report
  • [Presentation] 2元生成メビウス変換群に関するJorgensenとBowditchの理論について2008

    • Author(s)
      山下靖
    • Organizer
      第4回明治大学生田幾何セミナー
    • Place of Presentation
      明治大学
    • Year and Date
      2008-12-22
    • Related Report
      2008 Final Research Report
  • [Presentation] Computer experiments on the growth function of two-bridge ling groups2008

    • Author(s)
      Y.Yamashita
    • Organizer
      Geometry & Topology seminar
    • Place of Presentation
      University of Warwick, UK
    • Year and Date
      2008-11-06
    • Related Report
      2008 Final Research Report
  • [Presentation] The word problem for the automorphism and outer automorphism groups of a right-angled Artin group is solvable in polynomial time2008

    • Author(s)
      Y.Rieck, Y.Yamashita
    • Organizer
      研究集会「Intelligence of Low Dimensional Topology」兼「拡大KOOKセミナー」
    • Place of Presentation
      大阪市立大学
    • Year and Date
      2008-10-07
    • Related Report
      2008 Final Research Report
  • [Presentation] Limit elements in the confituration algebra for a discrete group III2007

    • Author(s)
      山下靖
    • Organizer
      離散群と双曲空間の解析学とトポロジー
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2007-12-13
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] Dynamics of the modular group action on the SL(2,C) character varietyof a one-holed torus2007

    • Author(s)
      山下靖
    • Organizer
      複素力学系とその周辺分野の研究
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2007-09-07
    • Related Report
      2008 Final Research Report
  • [Presentation] Dynamics of the modular group action on the SL(2,C)character variety of a one-holed torus2007

    • Author(s)
      山下靖
    • Organizer
      複素力学系とその周辺分野の研究
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2007-09-07
    • Related Report
      2007 Annual Research Report
  • [Presentation] Distance of knots and Morimoto's Conjecture on the super additive phenomena of tunnel numbers of knots2007

    • Author(s)
      小林毅
    • Organizer
      Geometric Topology Conference
    • Place of Presentation
      Peking University, Beijing
    • Year and Date
      2007-06-21
    • Related Report
      2008 Final Research Report
  • [Presentation] Distance of knots and Morimoto' s Conjecture on the super additive phenomena of tunnel numbers of knots2007

    • Author(s)
      小林 毅
    • Organizer
      Geometric Topology Conference
    • Place of Presentation
      Peking University, Beijing
    • Year and Date
      2007-06-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] Realizing Topological Chaos with Simple Mechanisms2007

    • Author(s)
      小林毅
    • Organizer
      SIAM Conference on Applications of Dynamical Systems
    • Place of Presentation
      Snowbird Ski and Summer Resort Snowbird, Utah
    • Year and Date
      2007-05-31
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Remarks]

    • URL

      http://vivaldi.ics.nara-wu.ac.jp/~yamasita/

    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://www.math.nara-wu.ac.jp/personal/tsuyoshi/index-j.htm

    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://vivaldi.ics.nara-wu.ac.jp/~yamasita/

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.math.nara-wu.ac.jp/personal./tsuyoshi/index-j.htm

    • Related Report
      2008 Annual Research Report

URL: 

Published: 2007-03-31   Modified: 2016-04-21  

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