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Lefschetz fibrations and 4-manifolds

Research Project

Project/Area Number 16K05142
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Endo Hisaaki  東京工業大学, 理学院, 教授 (20323777)

Co-Investigator(Kenkyū-buntansha) 菊池 和徳  大阪大学, 大学院理学研究科, 講師 (40252572)
Project Period (FY) 2016-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords曲面絡み目 / Morse-Novikov理論 / 4次元多様体 / Lefschetzファイバー空間 / ファイバー構造 / 井上曲面 / 複素多様体 / 写像類群 / ファイバー和 / シンプレクティック構造 / チャート表示 / 写像トーラス / 曲面結び目 / 超楕円性
Outline of Final Research Achievements

We studied the topology of 4-dimensional spaces, which are called "4-manifolds". In particular, we defined and investigated the Morse-Novikov number of a surface-link (a surface embedded in the 4-dimensional sphere), which measures the difference between the complement of the surface-link and a fiber bundle. We then computed the values of the Morse-Novikov numbers of several examples of surface-links.

Academic Significance and Societal Importance of the Research Achievements

モース・ノビコフ数は古典的な絡み目(3次元球面に埋め込まれた複数の円周)に対して2001年に定義されていた。本研究では、モース・ノビコフ数を曲面絡み目やさらに高次元の絡み目に対して定義し、様々な性質を明らかにした。本研究に何らかの学術的意義があるとすれば、それは「高次元絡み目のモース・ノビコフ理論」とよぶべき新たな研究領域を拓いた点であろう。

Report

(8 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (35 results)

All 2022 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (7 results) Journal Article (7 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 7 results,  Open Access: 5 results) Presentation (14 results) (of which Int'l Joint Research: 4 results,  Invited: 14 results) Remarks (7 results)

  • [Int'l Joint Research] ナント大学(フランス)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ナント大学(フランス)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ナント大学(フランス)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ナント大学(フランス)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] ナント大学(フランス)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] ナント大学(フランス)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] ナント大学(フランス)

    • Related Report
      2016 Research-status Report
  • [Journal Article] On the Morse-Novikov number for 2-knots2022

    • Author(s)
      Hisaaki Endo and Andrei Pajitnov
    • Journal Title

      Osaka Journal of Mathematics

      Volume: 54 Pages: 723-734

    • NAID

      120006358869

    • Related Report
      2022 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Lefschetz fibrations2021

    • Author(s)
      Endo Hisaaki
    • Journal Title

      Sugaku Expositions

      Volume: 34 Issue: 2 Pages: 175-204

    • DOI

      10.1090/suga/462

    • NAID

      130007638744

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On generalized Inoue manifolds2020

    • Author(s)
      H. Endo, A. Pajitnov
    • Journal Title

      Proceedings of the International Geometry Center

      Volume: 13 Issue: 4 Pages: 24-39

    • DOI

      10.15673/tmgc.v13i4.1748

    • Related Report
      2022 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A gap theorem for positive Einstein metrics on the four sphere2019

    • Author(s)
      K. Akutagawa, H. Endo, H. Seshadri
    • Journal Title

      Mathematische Annalen

      Volume: 373 Issue: 3-4 Pages: 1329-1339

    • DOI

      10.1007/s00208-018-1749-x

    • Related Report
      2022 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Lefschetz fibrations2017

    • Author(s)
      遠藤 久顕
    • Journal Title

      SUGAKU

      Volume: 69 Issue: 2 Pages: 157-180

    • DOI

      10.11429/sugaku.0692157

    • NAID

      130007638744

    • ISSN
      0039-470X, 1883-6127
    • Year and Date
      2017-04-26
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Circle-valued Morse theory for frame spun knots and surface-links2017

    • Author(s)
      Endo Hisaaki and Andrei Pajitnov
    • Journal Title

      The Michigan Mathematical Journal

      Volume: 66 Issue: 4 Pages: 813-830

    • DOI

      10.1307/mmj/1508810816

    • Related Report
      2022 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Lefschetzファイバー空間2017

    • Author(s)
      遠藤久顕
    • Journal Title

      数学

      Volume: 69 Pages: 157-180

    • NAID

      130007638744

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 4次元多様体のtrisection入門2022

    • Author(s)
      遠藤久顕
    • Organizer
      4次元多様体のtrisection勉強会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 4次元多様体のtrisection入門2022

    • Author(s)
      遠藤久顕
    • Organizer
      N-KOOKセミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 4次元多様体のtrisection入門2022

    • Author(s)
      遠藤久顕
    • Organizer
      研究集会「4次元トポロジー」
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Stabilization theorems for Lefschetz fibrations2022

    • Author(s)
      Hisaaki Endo
    • Organizer
      2017 Taiwan Mathematical Society Annual Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 2次元結び目のモース・ノビコフ数について2022

    • Author(s)
      遠藤久顕
    • Organizer
      東京大学トポロジー火曜セミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Inoue surfaces and their generalizations2022

    • Author(s)
      Hisaaki Endo
    • Organizer
      Algebraic surfaces and related topics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Inoue surfaces and their generalizations2022

    • Author(s)
      遠藤久顕
    • Organizer
      森本雅治先生退職記念研究集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Inoue surfaces and their generalizations2020

    • Author(s)
      遠藤久顕
    • Organizer
      森本雅治先生退職記念研究集会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Inoue surfaces and their generalizations2019

    • Author(s)
      遠藤久顕
    • Organizer
      Algebraic surfaces and related topics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 2次元結び目のモース・ノビコフ数について2018

    • Author(s)
      遠藤久顕
    • Organizer
      東京大学火曜トポロジーセミナー
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 4次元多様体のtrisection入門2017

    • Author(s)
      遠藤久顕
    • Organizer
      4次元多様体のtrisection勉強会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 4次元多様体のtrisection入門2017

    • Author(s)
      遠藤久顕
    • Organizer
      N-KOOKセミナー
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 4次元多様体のtrisection入門2017

    • Author(s)
      遠藤久顕
    • Organizer
      研究集会「4次元トポロジー」
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Stabilization theorems for Lefschetz fibrations2017

    • Author(s)
      Hisaaki Endo
    • Organizer
      2017 Taiwan Mathematical Society Annual Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] 遠藤久顕

    • URL

      https://sites.google.com/view/hisaaki-endo

    • Related Report
      2022 Annual Research Report
  • [Remarks] Hisaaki Endo

    • URL

      https://sites.google.com/view/hisaaki-endo/english

    • Related Report
      2022 Annual Research Report
  • [Remarks] 遠藤久顕(Hisaaki Endo)

    • URL

      http://www.math.titech.ac.jp/~endo/index.html

    • Related Report
      2021 Research-status Report
  • [Remarks] Hisaaki Endo

    • URL

      http://www.math.titech.ac.jp/~endo/index-en.html

    • Related Report
      2021 Research-status Report 2020 Research-status Report 2019 Research-status Report 2018 Research-status Report 2017 Research-status Report 2016 Research-status Report
  • [Remarks] 遠藤久顕 (Hisaaki Endo)

    • URL

      http://www.math.titech.ac.jp/~endo/index.html

    • Related Report
      2020 Research-status Report 2019 Research-status Report 2018 Research-status Report 2017 Research-status Report
  • [Remarks] T2R2 Tokyo Tech Research Repository

    • URL

      http://t2r2.star.titech.ac.jp/cgi-bin/researcherpublicationlist.cgi?q_researcher_content_number=CTT100380203&alldisp=1&tab_yf=2018

    • Related Report
      2017 Research-status Report
  • [Remarks] 遠藤 久顕 (Hisaaki Endo)

    • URL

      http://www.math.titech.ac.jp/~endo/index.html

    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2024-01-30  

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