Masahiko Yoshinaga


Department of Mathematics,
Hokkaido University,
North 10, West 8, Kita-ku,
Sapporo, 060-0810,


email: yoshinaga [at]
(or: mh.yoshinaga [at]

Discrete Geometric Structure Seminar
  • Ahmed Umer Ashraf visits us with the support by The Mitacs Globalink Research Award (May-July 2019)
  • We are organizing Hokkaido Summer Institute "Recent progress in matroids and Tutte polynomials" (Main lecturers: Graham Denham and Luca Moci) Lectures 22-25 and Workshop 25-26, July 2019.
  • Preprint: Double coverings of arrangement complements and 2-torsion in Milnor fiber homology. by Masahiko Yoshinaga. arXiv:1902.06256
  • We are organizing Hyper-JARCS (Papadima Memorial Conference) 2-6, Dec 2019. Tokyo (Organizers: Alexandru Dimca, Toshizumi Fukui, Toshitake Kohno, Laurentiu Paunescu, Alexander Suciu, Masahiko Yoshinaga)
  • Talk: A threshold of length in magnitude homology, in Magnitude 2019, 4 - 5 July, 2019, Edinburgh.
  • Talk: Enumerative aspects of G-Tutte polynomials, in SIAM - Conference on Applied Algebraic Geometry, 9 - 13 July, 2019, Bern
  • Talk: 20・12面体と超平面配置のミルナーファイバー, in JCCA 2019, 2019/08/27-29.
  • Talk: TBA Hyperplane Arrangements in Wakkanai, 2019/08/21-23
  • Talk: TBA Workshop on Hyperplane Arrangements and Reflection Groups, 2019/09/23-27
  • Talk: Quantum Math, Singularities and Related Topics, OIST, July 2020. ,

  • I am working in the following topics. (See Research Activity for details.)

    Dept of Math, Hokkaido University