Algebraic Geometry Seminar
Hal Schenck
UIUC
On equivariant Chow cohomology of nonsimplicial toric varieties
Abstract: For a toric variety X determined by a polyhedral fan P in a lattice N, the (rational) equivariant Chow cohomology is a graded Sym(N) module. We study the Chern classes of the associated reflexive sheaf on Proj(N). The first two Chern classes depend only on the combinatorics of P, but c_3 depends on the geometry of codimension two intersections of facets of P.
Thursday October 29, 2009 at 4:00 PM in SEO 636