3:45PM: Liftability of varieties in characteristic p.Piotr AchingerMany “pathologies” of varieties in characteristic p do not occur if the variety in question lifts to characteristic zero, or at least if it lifts modulo p^2. We will review classical and recent results on liftable varieties, discuss liftability of Frobenius split varieties, and present some new (quite elementary) examples of nonliftable varieties. This is joint work with Maciej Zdanowicz.
