Humboldt University Berlin, Summer 2026
Time: Tuesdays 13:15 - 14:45
Venue: Room 3.007, Rudower Chaussee 25, 12489 Berlin
— See also the Algebraic Geometry Seminars at HU and FU —
| 21.04.2026 | Carlo Mazzanti (Bielefeld) |
| Title: | The Beauville-Voisin conjecture for double EPW quartics |
| Abstract: | Chow rings of hyperkähler varieties are best understood in settings where one has strong control over their geometry, such as for Fano varieties of lines on cubic fourfolds, while the picture is less complete for moduli spaces of sheaves on K3 surfaces. Double EPW quartics are moduli spaces of twisted sheaves, but also admit two other constructions: via conics in Verra fourfolds and as lagrangian degeneracy loci. In this talk, I will explain how these constructions interact and can be exploited to prove the Beauville--Voisin and Franchetta conjectures for them. |