Mircea Mustata : Singularities: characteristic zero vs. positive characteristic

Posted by Lawrence Ein , part of the Departmental Colloquium.

At

Oct. 4, 2007, 3 p.m.

In

SEO 636

Abstract

In characteristic zero, one can define invariants of singularities via valuations, or equivalently, via resolutions of singularities. In positive characteristic, invariants can be defined in a very elementary way, using the Frobenius homomorphism. This talk will be about analogies and connections between these two points of view (with focus on positive characteristic).