Mathematics Colloquia and Seminars
Virtual invariants of Quot schemes of surfacesAlgebraic Geometry
|Speaker:||Dragos Oprea, UCSD|
|Start time:||Tue, Nov 19 2019, 3:10PM|
The Quot schemes of surfaces parametrizing quotients of dimension 0 and 1 admit natural 2-term perfect obstruction theories. I will explain several results concerning the calculation of virtual invariants arising this way, in particular the virtual Euler characteristics. This is based on joint work with Rahul Pandharipande.