Huelya Arguez (Universite de Versailles St-Quentin)
Tuesday, April 13, 2021 - 14:00
Humboldt-Universität zu Berlin
Rudower Chaussee 25, 12489 Berlin, https://hu-berlin.zoom.us/j/61339297016
A categorical notion of stability for objects in a triangulated category was introduced by Bridgeland. Donaldson-Thomas (DT) invariants are then defined as virtual counts of semistable objects. We will focus attention on a natural class of triangulated categories defined via the representation theory of quivers with potentials, and explain how to compute DT invariants in this case from a smaller subset of "attractor invariants" which are known in many cases. For this we investigate wall-crossing in the space of stability conditions, and prove a flow tree formula conjectured by Alexandrov-Pioline in this setup. This is joint work with Pierrick Bousseau.
submitted by Gaetan Borot (gaetan.borot@hu-berlin.de)