Title:
Anabelian Geometry of Fundamental Groups in Positive Characteristic

The talk will present results on the etale fundamental group of (mainly)
curves over fields of positive characteristic. Unlike in characteristic 0
where this invariant does not change in families, it is a very subtle
invariant in positive characteristic. For hyperbolic, nonisotrivial curves
over a field finitely generated over its finite prime field the etale
fundamental group determines the isomorphism type up to a possible twist by
Frobenius.