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Chow ring of generically twisted varieties of complete flags

Posted in
Speaker: 
Nikita Karpenko
Affiliation: 
U of Alberta/MPIM
Date: 
Thu, 13/10/2016 - 15:00 - 16:00
Location: 
MPIM Lecture Hall
Parent event: 
MPI-Oberseminar

Let G be a split simple affine algebraic group of type A or C over a field k, and let E be a standard generic G-torsor over a field extension of k. We compute the Chow ring of the variety of Borel subgroups of G (also called the variety of complete flags of G), twisted by E. In most cases, the answer contains a large finite torsion subgroup.

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