The University of Arizona
Please note that this event has ended!

Virtual invariants of Quot schemes of surfaces

Algebraic Geometry Seminar

Virtual invariants of Quot schemes of surfaces
Series: Algebraic Geometry Seminar
Location: ENR2 S395
Presenter: Dragos Oprea, UC San Diego

The Quot scheme of smooth projective surfaces parametrizing quotients of dimension 0 and 1 admit natural 2-term perfect obstruction theories. I will explain results and conjectures concerning the associated virtual invariants, with emphasis on the virtual Euler characteristics. This is based on joint work with Rahul Pandharipande.