Fundamental groups and positive characteristic

Fundamental groups and positive characteristic

Fri, 10/06/2011
12:00 		Michael Groechenig (University of Oxford) Junior Geometry and Topology Seminar Add to calendar SR1
Fundamental groups and positive characteristic
In spirit with John's talk we will discuss how topological invariants can be defined within a purely algebraic framework. After having introduced étale fundamental groups, we will discuss conjectures of Gieseker, relating those to certain "flat bundles" in finite characteristic. If time remains we will comment on the recent proof of Esnault-Sun.