|Topology of Algebraic Varieties|
|Topic:||Derived categories of cyclic covers and their branch divisors|
|Date:||Wednesday, April 29|
|Time/Room:||11:15am - 12:15pm/S-101|
Given a variety $Y$ with a rectangular Lefschetz decomposition of its derived category, I will discuss an interesting relation between the derived categories of a cyclic cover of $Y$ and its branch divisor. As examples, I will describe the cases of cyclic cubic fourfolds and "special Gushel--Mukai varieties," where we get a description of the equivariant category of certain K3 categories. This is joint work with Alexander Kuznetsov.