The intersection complex as a weight truncation and an application to Shimura varieties
arXiv:1806.09920
Abstract
The purpose of this talk is to present an (apparently) new way to look at the intersection complex of a singular variety over a finite field, or, more generally, at the intermediate extension functor on pure perverse sheaves, and an application of this to the cohomology of noncompact Shimura varieties.
arXiv comment20 pages, notes of my 2010 ICM talk