|JOINT IAS/PU NUMBER THEORY SEMINAR|
|Topic:||On the Andre-Oort Conjecture|
|Affiliation:||Universit'e Paris 7, France and Member, School of Mathematics|
|Date:||Thursday, February 5|
|Time/Room:||4:30pm - 5:30pm/Fine Hall -- 214|
Let S be a Shimura variety and L a set of special points on S. Andre and Oort conjecture that any irreducible component of the Zariski-closure of L is a subvariety of Hodge type of S. I will indicate a proof of this conjecture under GRH (this is joint work with A. Yafaev, relying on some work by Ullmo-Yafaev).