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Clarification, extension and application of antipodal sets of symmetric spaces

Research Project

Project/Area Number 18K03268
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 11020:Geometry-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Tasaki Hiroyuki  筑波大学, 数理物質系, 准教授 (30179684)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords対称空間 / 対蹠集合 / 実形の交叉 / 複素旗多様体 / 有向実Grassmann多様体 / 対称三対 / Floerホモロジー
Outline of Final Research Achievements

We explicitly describe the classifications of maximal antipodal sets in compact symmetric spaces of classical type which can be realized as polars of connected compact Lie groups. Even in the case where a compact symmetric space cannot be realized as a polar of a connected compact Lie group, it can be realized as a polar of a disconnected compact Lie group and we classify maximal antipodal subgroups in a disconnected compact Lie group and we proceeded with the research on classifications of maximal antipodal sets in polars. In many cases the classifications of maximal antipodal sets have been completed.

Academic Significance and Societal Importance of the Research Achievements

連結コンパクトLie群の極地として実現できないコンパクト対称空間を非連結コンパクトLie群の極地として実現することにより、コンパクト対称空間の極大対蹠集合を詳しく調べる手法を確立したことは、極大対蹠集合の分類に役立っただけではなく、極大対蹠集合の幾何学的、代数的、組合せ論的性質を調べる上でも有用である。このように非連結コンパクトLie群の極地を解明することは学術的意義がある。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (34 results)

All 2021 2020 2019 2018 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (30 results) (of which Int'l Joint Research: 5 results,  Invited: 25 results) Remarks (2 results)

  • [Journal Article] Maximal antipodal sets of compact classical symmetric spaces and their cardinalities I2020

    • Author(s)
      Makiko Sumi Tanaka and Hiroyuki Tasaki
    • Journal Title

      Differential Geometry and its Applications

      Volume: 73 Pages: 101682-101682

    • DOI

      10.1016/j.difgeo.2020.101682

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the structure of the intersection of real flag manifolds in a complex flag manifold2019

    • Author(s)
      H. Iriyeh, T. Sakai and H. Tasaki
    • Journal Title

      Advanced Studies in Pure Mathematics

      Volume: 82 Pages: 87-98

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 非連結コンパクト Lie 群の極地2021

    • Author(s)
      田崎博之
    • Organizer
      日本数学会2021年度年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 非連結コンパクトLie群の極地2020

    • Author(s)
      田中真紀子
    • Organizer
      研究集会「カンドルと対称空間」
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 非連結コンパクトLie群の極地2020

    • Author(s)
      田中真紀子
    • Organizer
      筑波大学微分幾何学セミナー
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] コンパクト対称空間の対蹠集合とコンパクトLie群の極地2020

    • Author(s)
      田中真紀子
    • Organizer
      対称空間の部分多様体とその時間発展
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Maximal antipodal sets related to G_22020

    • Author(s)
      田中真紀子
    • Organizer
      AMS Special Session on Differential Geometry and Global Analysis, Honoring the Memory of Tadashi Nagano (1930-2017)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 例外型コンパクトLie群G_2の幾何2019

    • Author(s)
      田崎博之
    • Organizer
      筑波大学微分幾何学セミナー
    • Related Report
      2019 Research-status Report
  • [Presentation] The intersection of two real forms in a Kahler C-space2019

    • Author(s)
      酒井高司
    • Organizer
      Oberseminar Differentialgeometrie
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] グラスマン多様体とその商空間の極大対蹠集合2019

    • Author(s)
      田中真紀子
    • Organizer
      第2回 水戸幾何小研究集会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Maximal antipodal sets of G_2 and G_2/SO(4) and related geometry2019

    • Author(s)
      田中真紀子
    • Organizer
      The 22nd International Workshop on Differential Geometry of Submanifolds in Symmetric Spaces & Related Problems
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 例外型コンパクトLie群G_2の幾何2019

    • Author(s)
      田崎博之
    • Organizer
      Workshop on Submanifold theory in a wider sense
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Maximal antipodal sets of classical compact symmetric spaces2019

    • Author(s)
      田中真紀子
    • Organizer
      DGA2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 例外型コンパクト対称空間G_2/SO(4)の幾何2019

    • Author(s)
      田崎博之
    • Organizer
      日本数学会2019年度秋季総合分科会
    • Related Report
      2019 Research-status Report
  • [Presentation] The intersection of two real forms in a Kahler C-space2019

    • Author(s)
      酒井高司
    • Organizer
      Seminaire de Mathematiques et Colloquium
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Maximal antipodal sets of classical compact symmetric spaces2019

    • Author(s)
      田中真紀子
    • Organizer
      The 2nd Taiwan-Japan Joint Conference on Differential Geometry
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 古典型コンパクト対称空間の極大対蹠集合2019

    • Author(s)
      田中真紀子
    • Organizer
      筑波大学微分幾何学セミナー
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 八元数、G_2、対蹠集合、およびFano平面2019

    • Author(s)
      田崎博之
    • Organizer
      部分多様体論・湯沢2019
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Polars and antipodal sets2019

    • Author(s)
      田崎博之
    • Organizer
      研究集会「カンドルと対称空間」
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] コンパクトLie群とコンパクト対称空間の極大対蹠集合2019

    • Author(s)
      田崎博之
    • Organizer
      部分多様体幾何とリー群作用2019
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 古典型コンパクト対称空間の極大対蹠集合2019

    • Author(s)
      田崎博之
    • Organizer
      幾何学と組合せ論2019
    • Related Report
      2018 Research-status Report
  • [Presentation] Maximal antipodal sets and polars of compact Lie groups2019

    • Author(s)
      田中真紀子
    • Organizer
      Oberseminar Differentialgeometrie
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 複素旗多様体内の二つの実旗多様体の交叉2018

    • Author(s)
      酒井高司
    • Organizer
      東北大幾何セミナー
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 複素旗多様体内の実形の交叉の対蹠性とFloerホモロジー2018

    • Author(s)
      奥田隆幸
    • Organizer
      第65回幾何学シンポジウム
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 古典型コンパクト対称空間の極大対蹠集合2018

    • Author(s)
      田中真紀子
    • Organizer
      部分多様体幾何とリー群作用2018
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 複素旗多様体の実形の交叉とFloerホモロジーへの応用-合同とは限らない実形の場合-2018

    • Author(s)
      酒井高司
    • Organizer
      部分多様体幾何とリー群作用2018
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] コンパクト対称空間の実現とその応用2018

    • Author(s)
      田崎博之
    • Organizer
      横田一郎先生追悼シンポジウム
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 古典型コンパクト対称空間の極大対蹠集合I2018

    • Author(s)
      田崎博之
    • Organizer
      日本数学会2018年度秋季総合分科会
    • Related Report
      2018 Research-status Report
  • [Presentation] Maximal antipodal sets of classical compact symmetric spaces2018

    • Author(s)
      田中真紀子
    • Organizer
      2018 joint Meeting of the Korean Mathematical Society and the German Mathematical Society
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Antipodal sets of compact symmetric spaces2018

    • Author(s)
      田中真紀子
    • Organizer
      研究集会「カンドルと対称空間」
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 有向実Grassmann 多様体の対蹠集合2018

    • Author(s)
      田崎博之
    • Organizer
      研究集会「カンドルと対称空間」
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 古典型コンパクト対称空間の極大対蹠集合2018

    • Author(s)
      田中真紀子
    • Organizer
      部分多様体論・湯沢2018
    • Related Report
      2018 Research-status Report
    • Invited
  • [Remarks] 田崎博之のページ

    • URL

      http://www.math.tsukuba.ac.jp/~tasaki/

    • Related Report
      2020 Annual Research Report
  • [Remarks] 田崎博之のホームページ

    • URL

      http://www.math.tsukuba.ac.jp/~tasaki/

    • Related Report
      2019 Research-status Report 2018 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

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