Hakodate workshop on arithmetic geometry 2018

We will hold the fourth workshop on arithmetic geometry in Hakodate. Past workshops were held in 2014, 2016 and 2017.

Date: December 10-11, 2018.

Venue: Hakodate City, G square, multi-purpose hall (map).

List of speakers :

  • Yasuhiro Goto (Hokkaido University of Education Hakodate)
  • Luc Illusie (Université Paris-Sud )
  • Shane Kelly (Tokyo Institute of Technology)
  • Teruhisa Koshikawa (RIMS)
  • Keiho Matsumoto (Tokyo Institute of Technology)
  • Yukiyoshi Nakkajima (Tokyo Denki University)
  • Natsuo Saito (Hiroshima City University)
  • Takashi Suzuki (Chuo University)
  • Nobuo Tsuzuki (Tohoku University)

Program (abstracts)

December 10(Mon.)

  • 10:30--11:30 Illusie: A new approach to the de Rham-Witt theory, after Bhatt, Lurie and Mathew
  • 11:45--12:30 Goto: Calculations on the formal groups of Calabi-Yau threefolds of Delsarte type
  • 14:00--15:00 Nakkajima: Artin-Mazur’s height and Yobuko’s height
  • 15:15--16:15 Saito: Fano varieties in positive characteristic and their F-splittings
  • 16:30--17:30 Suzuki: Duality for cohomology of local fields and curves with coefficients in abelian varieties

December 11(Tue.)

  • 10:30--11:30 Kelly: A motivic formalism in representation theory
  • 11:45--12:30 Matsumoto: On Gysin triangles of motifs with modulus
  • 14:00--15:00 Koshikawa: CM liftings of K3 surfaces and the Tate conjecture
  • 15:15--16:15 Tsuzuki: On variation of Newton polygons of F-isocrystals on a variety
  • 16:30--17:30 free discussion

This workshop is supported by JSPS Kakenhi grant (18K03232, 18K03200) and Research Alliance Center for Mathematical Science (RACMaS).

Organizers : Masao Aoki (Hokkaido University of Education Hakodate), Yasuhiro Goto (Hokkaido University of Education Hakodate), Takao Yamazaki (Tohoku University)