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Algebra Seminar

Monday, June 25, 2007 - 3:15pm

Diane Maclagan

Rutgers University

Location

University of Pennsylvania

DRL 4N30

Note time change.

The Chow and Hilbert quotients of a projective variety X by a torus T are nice canonical quotients. In the case where X has a degeneration to a toric variety, the Chow and Hilbert quotients of X also degenerate to toric varieties. An important example of this is the moduli space overline{M}_{0,n} which inherits toric degenerations from the degenerations of the Grassmannian G(2,n). I will recall the details of the Chow and Hilbert quotients and (Grobner) degenerations before describing joint work with Angela Gibney giving an explicit description of these toric degenerations.