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J-GLOBAL ID：200901044392732905   Update date: Nov. 06, 2024

Ishikawa Masaharu

イシカワ マサハル | Ishikawa Masaharu
Affiliation and department：
Keio University Faculty of Economics

About Keio University Faculty of Economics


Job title： Professor
Homepage URL  (1)： https://sites.google.com/view/m-ishikawa/
Research field  (1)： Geometry
Research keywords  (2)： Singularity Theory ,  Topology
Research theme for competitive and other funds  (9)：
  • 2019 - 2022 多面体による写像の特異点および多様体の幾何構造の研究
  • 2016 - 2019 ファイバー束構造による実特異点の位相的研究と多様体の具体的構成への応用
  • 2016 - 2018 多項式写像および混合多項式写像の無限遠の特異点の位相的研究
  • 2013 - 2016 実多項式写像の特異点の実変形、モノドロミーの分解および接触構造に関する研究
  • 2010 - 2013 多様体内の準正曲面と接触構造に関する研究と複素特異点論への応用
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Papers (39)：
  • Mizuki Fukuda, Masaharu Ishikawa. Distinguishing 2-knots admitting circle actions by fundamental groups. Revista Matemática Complutense. 2024
  • Masaharu ISHIKAWA, Tat-Thang NGUYEN. Relative homotopy groups and Serre fibrations for polynomial maps. Journal of the Mathematical Society of Japan. 2024. -1. -1
  • Ippei Ishii, Masaharu Ishikawa, Yuya Koda, Hironobu Naoe. Positive flow-spines and contact 3-manifolds, II. Annali di Matematica Pura ed Applicata (1923 -). 2023. 203. 3. 1251-1266
  • Ippei Ishii, Masaharu Ishikawa, Yuya Koda, Hironobu Naoe. Positive flow-spines and contact 3-manifolds. Annali di Matematica Pura ed Applicata (1923 -). 2023. 202. 5. 2091-2126
  • Masaharu Ishikawa, Yuya Koda, Hironobu Naoe. Presentation of the fundamental groups of complements of shadows. Essays in Geometry: Dedicated to Norbert A’Campo. 2023. 557-588
ｍore...
Books (2)：
  • Singularities-Kagoshima 2017 : Proceedings of the 5th Franco-Japanese-Vietnamese Symposium on Singularities
    World Scientific Publishing Co. Pte. Ltd. 2020 ISBN:9789811206023
  • 曲空間の幾何学-古典幾何から初等微分幾何まで
    朝倉書店 2009 ISBN:425411124X
Lectures and oral presentations  (113)：
  • Atypical values at infinity of real polynomial functions of three variables
    (Japanese Australian workshop on Real and Complex Singularities 2024)
  • Orbifold group による branched twist spin の区別
    (Knotting Nagoya (結び目の数理セミナー ) 2024)
  • Circle actions on the 4-sphere and 3-orbifold groups
    (International Conference "Singularities and Algebraic Geometry" 2024)
  • Circle actions on low-dimensional spheres
    (Handayama Seminar on Geometry & Algebra 2023)
  • On the fundamental groups of branched twist spins
    (Breadth in low-dimensional topology 2023)
ｍore...
Education (4)：
  • 1999 - 2001 Universitaet Basel Mathematisches Institute
  • 1995 - 1999 The University of Tokyo Graduate School of Mathematical Sciences
  • 1993 - 1995 The University of Tokyo Faculty of Engineering
  • 1991 - 1993 The University of Tokyo College of Arts and Sciences
Professional career (3)：
  • Doctor of Philosophy (Basel University)
  • 博士(数理科学) (The University of Tokyo)
  • Doctor of Philosophy (Basel University)
Work history (6)：
  • 2018/04 - 現在 Keio University Faculty of Economics Professor
  • 2008/04 - 2018/03 Tohoku University Mathematical Institute Associate Professor
  • 2007/04 - 2008/03 Tokyo Institute of Technology Department of Mathematics Assistant Professor
  • 2003/04 - 2007/03 Tokyo Institute of Technology Department of Mathematics Assistant Professor
  • 2001/10 - 2003/03 Japan Society of the Promotion of Science Postdoctoral Researcher (PD)
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Awards (1)：
  • 2005/02/22 - 財団法人手島工業教育資金団 手島記念中村研究賞 多項式写像が作る特異点のトポロジーと幾何構造の研究
Association Membership(s) (1)：
日本数学会
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