Nearby cycles over general bases
Weizhe Zheng (Academy of Mathematics and Systems Science; Princeton University)
MSRI: Simons Auditorium
The goal of this talk is to introduce Deligne's theory of nearby cycles over general bases as used in the work of Genestier and V. Lafforgue. In particular, we will present Orgogozo's theorem that these nearby cycles become good after modification of the base.