A conjecture of Grothendieck and Serre on principal bundles
Speaker: Roman Fedorov, UPitt
Abstract: Let G be a reductive group scheme over a regular local ring R. An old conjecture of Grothendieck and Serre predicts that such a principal bundle is trivial, if it is trivial over the fraction field of R. The conjecture has recently been proved in the "geometric" case, that is, when R contains a field. I will discuss the motivation, the geometric formulation, and the proof of the conjecture.
Room Reservation Information
Room Number: 106 McAllister
Time: 11:00am - 11:50am