Denis Nesterov, February 6, 2026

Title: Compactifications and Degenerations

Abstract: I will discuss a universal structure that appears in the compactification of spaces parametrizing points, maps, and vector bundles associated with a complex variety. It gives rise to numerous interesting correspondences between seemingly different geometries, shedding light on Hilbert schemes, Hurwitz spaces, and Gieseker moduli spaces of stable sheaves.