(HoRSe seminar) ADHM Sheaves, Wallcrossing, and Cohomology of the Hitchin Moduli Space I

22 June 2010
14:00
Duiliu Diaconescu
Abstract
The first talk will present a construction of equivariant virtual counting invariants for certain quiver sheaves on a curve, called ADHM sheaves. It will be shown that these invariants are related to the stable pair theory of Pandharipande and Thomas in a specific stability chamber. Wallcrossing formulas will be derived using the theory of generalized Donaldson-Thomas invariants of Joyce and Song.
  • Algebraic and Symplectic Geometry Seminar