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The Chow ring and cycle map of the classifying space of a linear algebraic group

Research Project

Project/Area Number 17K05263
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

亀子 正喜  芝浦工業大学, システム理工学部, 教授 (50270343)

Project Period (FY) 2017-04-01 – 2025-03-31
Project Status Granted (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords分類空間 / コホモロジー / コンパクトリー群 / 線形代数群 / スペクトル系列 / ゲージ群 / チャウ環 / サイクル写像 / スチーンロッド代数 / モチービックコホモロジー
Outline of Annual Research Achievements

2023年度の研究実績の概要は以下の通りです。
(1) 2023年7月18日に単著の査読付き論文"Milnor operations and classifying spaces”が学術雑誌 Proceedings of the American Mathematical Societyで出版されました。この論文では Kono-Yagita 予想の反例を p=2 の場合に構成しました。
(2) 2023年7月23日に単著の査読付き論文"Nilpotent elements in the cohomology of the classifying space of a connected Lie group"が学術雑誌 Journal of Topology and Analysis でオンラインで出版されました。この論文では SU(2) の3重積の商群の分類空間の整数係数コホモロジー及び mod 2 コホモロジーがべき零元を持つことを具体的な計算により示しました。
(3) 2023年7月25日に岸本氏と武田氏との共著の査読付き論文”Homotopy types of gauge groups over Riemann surfacesが学術雑誌Algebraic & Geometry Topology で出版されました。この論文では、コンパクトな連結リーマン曲面上の主 G-束のゲージ群のホモトピー型を研究しています。
(4) 2023年12月30日に単著のプレプリント”Torsion in classifying spaces of gauge groups”をプレプリントサーバー ArXiv へアップロードし査読付きの学術雑誌 Proceedings of the Royal Society of Edinburgh: Section A Mathematics に投稿しました。これは2024年4月1日にオンラインで出版されました。この論文では球面上の射影ユニタリ群のゲージ群の分類空間の整数係数ホモロジー群が捩れを持たないことを示しました。

Current Status of Research Progress
Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

2023年度中に査読付きの論文2本が受理されて、4本が出版されているのでいるので研究は進んでいると言えます。またこれ以外の新しい結果も得られています。しかしながらそれを論文にまとめて投稿する、という部分が遅れています。

Strategy for Future Research Activity

Proceedings of the Royal Society of Edinburgh: Section A Mathematicsで2024年4月1日にオンラインで出版された論文 "Torsion in classifying spaces of gauge groups"の結果は射影ユニタリ群に関するものですがこれを一般の単純リー群に拡張することによりこの論文の続編を書き上げるつもりです。また2024年夏にハノイでの国際研究集会での招待講演で発表予定の "Dickson-Mui invariants in the Brown-Peterson tower" を論文の形にまとめて投稿する予定です。さらにAd E_6の分類空間の mod 3 コホモロジーの計算かそれに関連したテーマで論文を書くつもりでいます。

Report

(7 results)
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (34 results)

All 2024 2023 2022 2021 2020 2019 2018 2017

All Journal Article (13 results) (of which Peer Reviewed: 11 results,  Open Access: 9 results) Presentation (21 results) (of which Int'l Joint Research: 3 results,  Invited: 20 results)

  • [Journal Article] Torsion in classifying spaces of gauge groups2024

    • Author(s)
      Kameko Masaki
    • Journal Title

      Proceedings of the Royal Society of Edinburgh: Section A Mathematics

      Volume: online Pages: 1-16

    • DOI

      10.1017/prm.2024.33

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Milnor operations and classifying spaces2023

    • Author(s)
      Kameko Masaki
    • Journal Title

      Proceedings of the American Mathematical Society, Series B

      Volume: 10 Issue: 24 Pages: 262-272

    • DOI

      10.1090/bproc/177

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Homotopy types of gauge groups over Riemann surfaces2023

    • Author(s)
      Kameko Masaki、Kishimoto Daisuke、Takeda Masahiro
    • Journal Title

      Algebraic & Geometric Topology

      Volume: 23 Issue: 5 Pages: 2309-2327

    • DOI

      10.2140/agt.2023.23.2309

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nilpotent elements in the cohomology of the classifying space of a connected Lie group2023

    • Author(s)
      Kameko Masaki
    • Journal Title

      Journal of Topology and Analysis

      Volume: online Issue: 02 Pages: 1-11

    • DOI

      10.1142/s1793525323500188

    • Related Report
      2023 Research-status Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Milnor operations and classifying spaces2023

    • Author(s)
      Masak Kameko
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: -

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Kono-Yagita の予想たちとその周辺2023

    • Author(s)
      亀子正喜
    • Journal Title

      数理解析研究所講究録2252「有限群のコホモロジー論とその周辺」

      Volume: 2252

    • Related Report
      2022 Research-status Report
    • Open Access
  • [Journal Article] Homotopy types of gauge groups over Riemann surfaces2022

    • Author(s)
      Masaki Kameko, Daisuke Kishimoto and Masahiro Takeda
    • Journal Title

      Algebraic & Geometric Topology

      Volume: accepted

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Non-torsion non-algebraic classes in the Brown?Peterson tower2020

    • Author(s)
      KAMEKO MASAKI
    • Journal Title

      Mathematical Proceedings of the Cambridge Philosophical Society

      Volume: FirstView Issue: 1 Pages: 1-20

    • DOI

      10.1017/s0305004120000158

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] On the mod 2 cohomology of the classifying space of the exceptional Lie group $E_{6}$2019

    • Author(s)
      Kameko Masaki、Nakagawa Masaki、Nishimoto Tetsu
    • Journal Title

      Proceedings of the Japan Academy, Series A, Mathematical Sciences

      Volume: 95 Issue: 9 Pages: 91-96

    • DOI

      10.3792/pjaa.95.91

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The mod 3 cohomology ring of the finite projective general group of degree 32019

    • Author(s)
      亀子 正喜
    • Journal Title

      数理解析研究所講究録

      Volume: 2134 Pages: 37-44

    • Related Report
      2019 Research-status Report
    • Open Access
  • [Journal Article] On the motivic Peterson conjecture2018

    • Author(s)
      Kameko Masaki
    • Journal Title

      Homology, Homotopy and Applications

      Volume: 20 Issue: 2 Pages: 361-375

    • DOI

      10.4310/hha.2018.v20.n2.a18

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Mod 3 Chern classes and generators2017

    • Author(s)
      Masaki Kameko
    • Journal Title

      Proc. Japan Acad. Ser. A Math. Sci.

      Volume: 93 Issue: 7 Pages: 55-60

    • DOI

      10.3792/pjaa.93.55

    • NAID

      40021302680

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] On the motivic Peterson conjecture2017

    • Author(s)
      Masaki Kameko
    • Journal Title

      Homology, Homotopy and Applications

      Volume: 印刷中

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Torsion in classifying spaces of gauge groups2024

    • Author(s)
      亀子 正喜
    • Organizer
      関西代数トポロジーセミナー
    • Related Report
      2023 Research-status Report
    • Invited
  • [Presentation] Cohomology rings of oriented Grassmann manifolds2023

    • Author(s)
      亀子 正喜
    • Organizer
      高知ホモトピー論談話会
    • Related Report
      2023 Research-status Report
    • Invited
  • [Presentation] The Morava K(2)-theory of the classifying space of a certain connected Lie group2022

    • Author(s)
      亀子正喜
    • Organizer
      高知ホモトピー論談話会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Kono-Yagita の予想たちの現状とその周辺2022

    • Author(s)
      亀子 正喜
    • Organizer
      RMIS研究集会「有限群のコホモロジーとその周辺」
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Computation of the mod 2 cohomology of the classifying space BE6 without using the Rothenberg-Steenrod spectral sequence2021

    • Author(s)
      亀子 正喜
    • Organizer
      高知ホモトピー論談話会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Cohomology of classifying spaces2020

    • Author(s)
      Masaki Kameko
    • Organizer
      ICoMPAC 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Elementary abelian p-subgroups and the cohomology of the classifying space of a connected Lie group2020

    • Author(s)
      亀子 正喜
    • Organizer
      ホモトピー論シンポジウム
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Odd degree elements of the Morava K-theory of a classifying space2019

    • Author(s)
      亀子 正喜
    • Organizer
      高知ホモトピー論談話会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 有限群と線形代数群の分類空間のコホモロジー2019

    • Author(s)
      亀子 正喜
    • Organizer
      琉球大学談話会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 群のコホモロジー2019

    • Author(s)
      亀子 正喜
    • Organizer
      琉球大学集中講義
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Cohomology of classifying spaces of Lie groups2019

    • Author(s)
      Maaski Kameko
    • Organizer
      Homotopy Theory Symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Nilpotent elements in the cohomology of the classifying space of a connected Lie group2019

    • Author(s)
      亀子 正喜
    • Organizer
      ホモトピー沖縄2019
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] K-theory and the cycle map2019

    • Author(s)
      亀子 正喜
    • Organizer
      香川セミナー
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Morava K-theories of certain classifying spaces2019

    • Author(s)
      亀子 正喜
    • Organizer
      新居浜代数トポロジーワークショップ
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] The mod 3 cohomology ring of the finite projective general group of degree 32019

    • Author(s)
      亀子 正喜
    • Organizer
      RIMS研究集会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] On transferred Euler classes2018

    • Author(s)
      亀子 正喜
    • Organizer
      ホモトピー論シンポジウム
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] The mod 3 cohomology ring of the finite projective general group of degree 3 [2018

    • Author(s)
      亀子 正喜
    • Organizer
      ホモトピー沖縄
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Morava K-theories of finite special orthogonal groups in dimension 32018

    • Author(s)
      Masak Kameko
    • Organizer
      The 2nd SIT-UOG workshop on pure/applied math- ematics and computer science
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] On the motivic Peterson conjecture2017

    • Author(s)
      亀子 正喜
    • Organizer
      高知ホモトピー論談話会2017
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Brown-Peterson cohomology of certain classifying spaces2017

    • Author(s)
      亀子 正喜
    • Organizer
      代数トポロジーセミナー
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Non-torsion non-algebraic classes in the Brown-Peterson tower2017

    • Author(s)
      亀子 正喜
    • Organizer
      ホモトピー論シンポジウム
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2024-12-25  

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