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2018 Fiscal Year Annual Research Report

General studies on L-class, cobordism theory, bivariant theory and related topics

Research Project

Project/Area Number 16H03936
Research InstitutionKagoshima University

Principal Investigator

與倉 昭治  鹿児島大学, 理工学域理学系, 教授 (60182680)

Co-Investigator(Kenkyū-buntansha) 森吉 仁志  名古屋大学, 多元数理科学研究科, 教授 (00239708)
木村 俊一  広島大学, 理学研究科, 教授 (10284150)
佐伯 修  九州大学, マス・フォア・インダストリ研究所, 教授 (30201510)
竹内 潔  筑波大学, 数理物質系, 教授 (70281160)
Project Period (FY) 2016-04-01 – 2019-03-31
Keywordsmotivic Hirzebruch 類 / Hirzebruch chi-y 種数 / 双変理論 / 代数的コボルデイズ / ファイブレーション / poset構造
Outline of Annual Research Achievements

研究代表者の研究業績についてのみ概要を記載する。
(1)L-類の双変理論の考察中に発見したHirzebruch chi-y種数がファイバーバンドルについてmod 4で乗法的であることの成果は"Schubert Varieties, Equivariant Cohomology and Characteristic Classes ", European Math. Soc. (2018)に掲載されたが、その成果が切っ掛けでC.Rovi女史(米国Indiana大学)との共同研究で得たHirzebruch chi-y種数はyが奇数の場合はファイバー束に対してmod 8で乗法的である事の成果はPure and Applied Math. Quarterly,12(2016)に掲載された。(2016であるが、刊行は2018年)
(2)L.Maxim氏(米国Wisconsin大)との共同研究で得たHirzebruch 特性類T_y*のホモロジー的合同式の成果は、European J. of Math.に掲載が決まった。
(3)双変理論的発想を基に、山口俊博氏(高知大学)との共同研究で得たホモトピー集合[X,Y]がposet-stratified spaceの構造をもつ事などの成果はHomology, Homotopy and Appli. 21(2019)およびComm.of Korean Math.Soc.2019に掲載が決まった。また、Hilali予想を拡張した写像に対するHilali予想を考察した。
(5)algebraic cobordismの双変理論の構成に向けて執筆した論文「Oriented Bivariant Theory,II -Algebraic cobordism of S-schemes-」はInternational J. of Math. に掲載されることとなった。

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

  • Research Products

    (40 results)

All 2020 2019 2018 Other

All Int'l Joint Research (3 results) Journal Article (15 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 14 results,  Open Access: 2 results) Presentation (20 results) (of which Int'l Joint Research: 15 results,  Invited: 16 results) Book (1 results) Funded Workshop (1 results)

  • [Int'l Joint Research] University of Wisconsin-Madison/Indiana University-Bloomington/The University of Massachusetts(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      University of Wisconsin-Madison/Indiana University-Bloomington/The University of Massachusetts
  • [Int'l Joint Research] Universite Nice Sophia Antipolis(フランス)

    • Country Name
      FRANCE
    • Counterpart Institution
      Universite Nice Sophia Antipolis
  • [Int'l Joint Research] Higher School of Economics(ロシア連邦)

    • Country Name
      RUSSIA FEDERATION
    • Counterpart Institution
      Higher School of Economics
  • [Journal Article] Motivic Milnor-Hirzebruch classes revisited2020

    • Author(s)
      S. Yokura
    • Journal Title

      The Proceedings of FJV2017 Kagoshima (World Scientific)

      Volume: - Pages: -

    • Peer Reviewed
  • [Journal Article] Oriented bivariant theory, II --Algebraic cobordism of S-schemes2019

    • Author(s)
      S. Yokura
    • Journal Title

      International Journal of Mathematics

      Volume: - Pages: -

    • Peer Reviewed
  • [Journal Article] Homological congruence formulae for characteristic classes of singular varieties2019

    • Author(s)
      L. Maxim and S. Yokura
    • Journal Title

      European Journal of Mathematics

      Volume: - Pages: -

    • DOI

      10.1007/s40879-018-0305-2

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A proset structure induced from homotopy classes of maps and a classification of fibrations2019

    • Author(s)
      T. Yamaguchi and S. Yokura
    • Journal Title

      Communications of the Korean Mathematical Society

      Volume: - Pages: -

    • DOI

      DOI: 10.4134/CKMS.c180326

    • Peer Reviewed
  • [Journal Article] Poset-stratified space structures of homotopy sets2019

    • Author(s)
      T. Yamaguchi and S. Yokura
    • Journal Title

      Homology, Homotopy and Applications

      Volume: 21 Pages: 1-22

    • DOI

      10.4310/HHA.2019.v21.n2.a1

    • Peer Reviewed
  • [Journal Article] Elimination of definite fold II2019

    • Author(s)
      O.Saeki
    • Journal Title

      Kyushu J. Math.

      Volume: - Pages: -

    • Peer Reviewed
  • [Journal Article] A signature invariant for stable maps of 3-manifolds into surfaces2019

    • Author(s)
      O. Saeki
    • Journal Title

      Proceedings of the Australian-Japanese Workshop on Real and Complex Singularities

      Volume: - Pages: -

    • Peer Reviewed
  • [Journal Article] Bifurcation values of polynomial functions and perverse sheaves2019

    • Author(s)
      K. Takeuchi
    • Journal Title

      Annales de l'Institut Fourier

      Volume: - Pages: -

    • Peer Reviewed
  • [Journal Article] On decomposition spaces, Alexandroff spaces and related topics2018

    • Author(s)
      S. Yokura
    • Journal Title

      Kyoto University RIMS Kokyuroku

      Volume: 2064 Pages: 5-26

    • Open Access
  • [Journal Article] Hirzebruch chi-y-genera modulo 8 of fiber bundles for odd integers y,2018

    • Author(s)
      C. Rovi and S. Yokura
    • Journal Title

      Pure and Applied Mathematics Quarterly

      Volume: 12 Pages: 587-602

    • DOI

      10.4310/PAMQ.2016.v12.n4.a7

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On a relative Hilali conjecture2018

    • Author(s)
      T. Yamaguchi and S. Yokura
    • Journal Title

      African Diaspora Journal of Mathematics

      Volume: 21 Pages: 81-86

    • Peer Reviewed
  • [Journal Article] Simplified broken Lefschetz fibrations and trisections of 4-manifolds2018

    • Author(s)
      R.I. Baykur and O. Saeki
    • Journal Title

      Proc. Natl. Acad. Sci. USA

      Volume: 115 Pages: 10894-10900

    • DOI

      10.1073/pnas.1717175115

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] An algebraic description of screw dislocations in SC and BCC crystal lattices2018

    • Author(s)
      H. Hamada, S. Matsutani, J. Nakagawa, O. Saeki, and M. Uesaka
    • Journal Title

      Pacific Journal of Mathematics for Industry

      Volume: 10:3 Pages: -

    • DOI

      10.1186/s40736-018-0037-8

    • Peer Reviewed / Open Access
  • [Journal Article] Hyperbolic localization and Lefschetz fixed point formulas for higher-dimensional fixed point sets2018

    • Author(s)
      Y. Ike, Y. Matsui and K. Takeuchi
    • Journal Title

      Int. Math. Res. Not.

      Volume: 2018 Pages: 4852-4898

    • DOI

      10.1093/imrn/rnx030

    • Peer Reviewed
  • [Journal Article] On vanishing theorems for local systems associated to Laurent polynomials2018

    • Author(s)
      A. Esterov and K. Takeuchi
    • Journal Title

      Nagoya Math. Journal

      Volume: 231 Pages: 1-22

    • DOI

      10.1017/nmj.2017.8

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] On bicycles2019

    • Author(s)
      Shoji Yokura
    • Organizer
      The 14th Algebra-Analysis-Geometry Seminar (at Kagoshima University)
    • Int'l Joint Research / Invited
  • [Presentation] An index theorem on binary tube and the bounded Euler cocycle2019

    • Author(s)
      Hitoshi Moriyoshi
    • Organizer
      AMS Spring Central and Western Joint Sectional Meeting (University of Hawaii at Manoa, Honolulu, HI, USA)
    • Int'l Joint Research / Invited
  • [Presentation] Unlinking singular locus from regular fibers and its application to submersions2019

    • Author(s)
      佐伯 修
    • Organizer
      接触構造、特異点、微分方程式及びその周辺 (静岡県男女共同参画センター「あざれあ」)
  • [Presentation] Unlinking singular locus from regular fibers and its application to submersions2019

    • Author(s)
      Osamu Saeki
    • Organizer
      The 14th Algebra-Analysis-Geometry Seminar (at Kagoshima University)
    • Int'l Joint Research / Invited
  • [Presentation] 未定2019

    • Author(s)
      Kiyoshi Takeuchi
    • Organizer
      Higgs bundles and D-modules (Porto Univeristy, Portugal)
    • Int'l Joint Research / Invited
  • [Presentation] On irregularities of Fourier transforms of regular holonomic D-module2019

    • Author(s)
      Kiyoshi Takeuchi
    • Organizer
      The 14th Algebra-Analysis-Geometry Seminar (at Kagoshima University)
    • Int'l Joint Research / Invited
  • [Presentation] Congruence formulae for Hirzebruch chi-y genera and motivic Hirzebruch classes of singular varieties2018

    • Author(s)
      Shoji Yokura
    • Organizer
      “Special Session on Singularities in Geometry, Topology, and Algebra”, the Joint International Meeting of the Chinese Mathematical Society and the American Mathematical Society
    • Int'l Joint Research / Invited
  • [Presentation] Motivic Hirzebruch classes of singular varieties and some homological congruence formulae”2018

    • Author(s)
      Shoji Yokura
    • Organizer
      MPS Conference on Singularities: Geometric, Topological, and Analytic Aspects (Simons Foundations)
    • Int'l Joint Research / Invited
  • [Presentation] Fuzzy sphere and the Ginsparg-Wilson index2018

    • Author(s)
      Hitoshi Moriyoshi
    • Organizer
      Noncommutative Geometry and Representation Theory (Tianyuan Mathematical Center, Chengdu, China)
    • Int'l Joint Research / Invited
  • [Presentation] A new index theorem on Fuzzy sphere2018

    • Author(s)
      Hitoshi Moriyoshi
    • Organizer
      Symmetries in Symplectic, Contact and Poisson Geometries (Soochow University, Suzhou,China)
    • Int'l Joint Research / Invited
  • [Presentation] Combinatorial Gauss-Bonnet theorem and the Alexander-Spanier cohomology2018

    • Author(s)
      Hitoshi Moriyoshi
    • Organizer
      GAP (geometry, algebra, analysis and mathematical physics) Seminar (University of Science and Technology of China, Hefei, China)
    • Invited
  • [Presentation] 多面体に対する Gauss-Bonnet 定理とAlexander-Spanier コホモロジー2018

    • Author(s)
      森吉 仁志
    • Organizer
      愛媛大学数学教室談話会 (愛媛大学理学部,松山)
    • Invited
  • [Presentation] A discrete Gauss curvature on polyhedron via the Alexander-Spanier cohomology2018

    • Author(s)
      Hitoshi Moriyoshi
    • Organizer
      葉層構造と微分同相群2018研究集会 (東京大学玉原セミナーハウス,玉原)
  • [Presentation] 多面体の離散ガウス曲率および離散正則回転数と Alexander-Spanierコホモロジー2018

    • Author(s)
      森吉 仁志
    • Organizer
      高次元多面体勉強会 (名古屋大学,名古屋)
  • [Presentation] Simplified broken Lefschetz fibrations and trisections of 4-manifolds2018

    • Author(s)
      Osamu Saeki
    • Organizer
      研究集会 Intelligence of Low-dimensional Topology (京都大学数理解析研究所)
    • Int'l Joint Research / Invited
  • [Presentation] Singular locus and regular fibers, do they link each other ?2018

    • Author(s)
      Osamu Saeki
    • Organizer
      15th International Workshop on Real and Complex Singularities ( ICMC, Univ. of Sao Paulo, Brazil)
    • Int'l Joint Research / Invited
  • [Presentation] Simplifying broken Lefschetz fibrations and trisections of 4-manifolds2018

    • Author(s)
      Osamu Saeki
    • Organizer
      Four Dimensional Topology (Osaka City University)
    • Int'l Joint Research
  • [Presentation] Elimination of definite fold for simple stable maps2018

    • Author(s)
      Osamu Saeki
    • Organizer
      Real Algebraic Geometry and Singularity Theory Symposium (Memorial Conference of Masahiro Shiota), (Kobe Harborland Campus of Hyogo University of Teacher Education, Kobe, Japan)
    • Int'l Joint Research / Invited
  • [Presentation] Unlinking singular locus from regular fibers and its application to submersions2018

    • Author(s)
      Osamu Saeki
    • Organizer
      Geometry, Topology and Dynamics Seminar (Okinawa Institute of Science and Technology, Okinawa, Japan)
    • Int'l Joint Research / Invited
  • [Presentation] On irregularities of Fourier transforms of regular holonomic D-modules2018

    • Author(s)
      Kiyoshi Takeuchi
    • Organizer
      Riemann-Hilbert correspondences (Padova University, Italy)
    • Int'l Joint Research / Invited
  • [Book] 数学リテラシー2018

    • Author(s)
      竹内 潔、久保隆徹
    • Total Pages
      208
    • Publisher
      共立出版
    • ISBN
      978-4-320-11349-7
  • [Funded Workshop] The 14th Algebra-Analysis-Geometry Seminar2019

URL: 

Published: 2019-12-27  

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