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Study on diffeomorphism groups and geometric structure on ends of noncompact manifolds

Research Project

Project/Area Number 15K04874
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Geometry
Research InstitutionKyoto Institute of Technology

Principal Investigator

Yagasaki Tatsuhiko  京都工芸繊維大学, 基盤科学系, 教授 (40191077)

Co-Investigator(Renkei-kenkyūsha) IKAWA Osamu  京都工芸繊維大学, 基盤科学系, 教授 (60249745)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywords微分同相群 / 一様同相群 / 非コンパクト多様体 / エンド / 距離幾何 / リーマン計量 / 双曲幾何 / 同相群 / 一様同相 / 一様位相
Outline of Final Research Achievements

In geometry, various classes of manifolds constitute important subjects of research. The whole continuous transformations on a manifold form a group, which is called the homeomorphism group of this manifold. Study of this group plays an important role to understand the geometric nature of the manifold.
In this research we are concerned with open manifolds with metrics, as Euclidean spaces, and the groups of uniform homeomorphisms on those manifolds. A uniform homeomorphism is a transformation on a manifold which satisfies a sort of uniform estimate of continuity, called the uniform continuity, with respect to the given metric. Those groups of uniform homeomorphisms are naturally endowed with the uniform topology induced from the metrics on the manifolds. With this uniform topology we studied local and global continuous deformation of those groups and obtained a list of metric manifolds for which the groups of uniform homeomorphisms admit local or global continuous deformations.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (12 results)

All 2018 2017 2016 2015 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Remarks (3 results)

  • [Journal Article] Local and end deformation theorems for uniform embeddings2018

    • Author(s)
      Tatsuhiko Yagasaki
    • Journal Title

      Topology and its Applications

      Volume: 239 Pages: 191-225

    • DOI

      10.1016/j.topol.2018.02.023

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] Local and end deformation theorems for uniform embeddings2017

    • Author(s)
      矢ヶ崎達彦
    • Organizer
      日本数学会 2017 年度 秋季総合分科会 トポロジー分科会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Survey on topological properties of spaces of Riemannian metrics2017

    • Author(s)
      矢ヶ崎達彦
    • Organizer
      RIMS 共同研究集会「変換群を核とする代数的位相幾何学」(京都大学 数理解析研究所)
    • Related Report
      2017 Annual Research Report
  • [Presentation] リーマン計量の空間の位相的性質に関する諸結果の紹介2017

    • Author(s)
      矢ヶ崎達彦
    • Organizer
      研究集会「葉層構造と微分同相群 2017」
    • Related Report
      2017 Annual Research Report
  • [Presentation] 平面上の完備非負曲率リーマン計量の空間に関する Igor Belegradek の結果の紹介2016

    • Author(s)
      矢ヶ崎達彦
    • Organizer
      2016年度 General Topology シンポジウム
    • Place of Presentation
      筑波大学 (茨城県 つくば市)
    • Year and Date
      2016-12-08
    • Related Report
      2016 Research-status Report
  • [Presentation] 平面上の完備非負曲率リーマン計量の空間に関する Igor Belegradek の結果の紹介2016

    • Author(s)
      矢ヶ崎達彦
    • Organizer
      葉層構造と微分同相群 2016
    • Place of Presentation
      東京大学 玉原国際セミナーハウス (群馬県 沼田市)
    • Year and Date
      2016-10-19
    • Related Report
      2016 Research-status Report
  • [Presentation] Local and end deformation properties for uniform embeddings2015

    • Author(s)
      Tatsuhiko Yagasaki
    • Organizer
      The 1st Pan Pacific International Conference on Topology and Applications, 2015
    • Place of Presentation
      Min Nan Normal University, Zhang Zhou, China
    • Year and Date
      2015-11-27
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Local and end deformation properties for uniform embeddings2015

    • Author(s)
      矢ヶ崎 達彦
    • Organizer
      RIMS 研究集会「集合論的位相幾何学および幾何学的トポロジーの最近の動向と展望」
    • Place of Presentation
      京都大学 数理解析研究所
    • Year and Date
      2015-11-16
    • Related Report
      2015 Research-status Report
  • [Presentation] Diffeomorphism groups of non-compact manifolds endowed with the Whitney C^infty-topology2015

    • Author(s)
      矢ヶ崎 達彦
    • Organizer
      研究集会「葉層構造と微分同相群 2015」
    • Place of Presentation
      東京大学 玉原国際セミナーハウス (群馬県 沼田市)
    • Year and Date
      2015-10-27
    • Related Report
      2015 Research-status Report
  • [Remarks] 京都工芸繊維大学 研究者総覧

    • URL

      https://www.hyokadb.jim.kit.ac.jp/profile/ja.b3ba40709f764a8b702569e202c117d3.html

    • Related Report
      2017 Annual Research Report
  • [Remarks] Homepage of Tatsuhiko Yagasaki

    • URL

      http://www.cis.kit.ac.jp/~yagasaki/

    • Related Report
      2017 Annual Research Report 2016 Research-status Report
  • [Remarks] 京都工芸繊維大学 研究者総覧 - 基盤科学系 矢ヶ崎達彦

    • URL

      https://www.hyokadb.jim.kit.ac.jp/top/ja.html

    • Related Report
      2016 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2019-03-29  

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