Geometry and Physics Seminar: Matt Ballard

  • Date: 09/25/2014
  • Time: 14:00
Matt Ballard (South Carolina)

University of Alberta


Wall crossing in moduli problems and semi-orthogonal decompositions


We discuss how the derived category of a smooth algebraic stack of finite type changes as one removes certain types of closed substacks. As an application, we show how wall-crossing in moduli of stable sheaves and Bridgeland stable objects yields semi-orthogonal decompositions of relating their derived categories.

Other Information: 

This is a live e-seminar hosted by The University of Alberta in CAB 449 and broadcast at UBC in ESB 4127 at 2 pm (PST)