October 21 : Richard Rimanyi

Title: Characteristic classes of singular varieties in H, K, and Ell

Abstract: Characteristic classes associated with singular varieties are powerful tools to study the topology and geometry of the singularities. We will review the foundations of the theory, explore calculational techniques (resolution, degeneration, localization, interpolation), deduce enumerative results, and we will present the connection between characteristic classes and stable envelopes.