This is the webpage for the algebraic geometry preprint seminar between Humboldt Universität zu Berlin and Leibniz Universität Hannover during the Wintersemester 2021-22.
Organizers: Carl Lian, Stefan Schreieder, Domenico Valloni
Meeting time: Fridays 14:15-15:45 CEST (first talk only)/CST (all subsequent talks)
Meeting location: Zoom, link sent out by e-mail (or contact the organizers)
Each speaker will explain a recent preprint by authors other than themselves or any of the other participants.
Program
29. October: Matthias Paulsen (Hannover), Cheng-van Dobben de Bruyn, Unbounded negativity on rational surfaces in positive characteristic
[no talk 5. November]
12. November: Carl Lian (Berlin), Alexeev-Engel, On the flex divisor of a K3 surface
19. November: Karl Christ (Hannover), Amini-Esteves, Voronoi tilings, toric arrangements and degenerations of line bundles III
26. November: Federico Moretti (Berlin), Kemeny, The rank of syzygies of canonical curves
3. December: Giacomo Mezzedimi (Hannover), Chen-Gounelas, Curves of maximal moduli on K3 surfaces
[no talk 10. December]
17. December: Zhuang He (Berlin), Gallardo-González-Routis, The Fulton-MacPherson compactification is not a Mori dream space
[no talks 24., 31. December]
7. January: Qixiao Ma (Hannover), Fu-Laterveer, Special cubic fourfolds, K3 surfaces and the Franchetta property
14. January: Andrea Di Lorenzo (Berlin), Canning-Larson, Chow rings of low-degree Hurwitz spaces
21. January: Ruijie Yang (Berlin), de Cataldo-Maulik-Shen-Zhang, Cohomology of the moduli of Higgs bundles via positive characteristic
28. January: Domenico Valloni (Hannover), Česnavičius, Grothendieck-Serre in the quasi-split unramified case