I will discuss Toen's result about integral transforms between dg-categories naturally associated to varieties. Combined with Lunts and Orlov's recent theorem on the uniqueness of dg-enhancements, this result gives simpler proofs of known results about integrality. If time permits, I will also explain the functoriality of cones for triangulated dg categories.
Graduate Student Algebra Seminar
Friday, November 6, 2009 - 1:30pm
Mehmet Umut Isik
University of Pennsylvania