Perverse Sheaves on the Nilpotent Cone and Lusztig's Generalized Springer Correspondence

Abstract

In this note, we consider perverse sheaves on the nilpotent cone. We prove orthogonality relations for the equivariant category of sheaves on the nilpotent cone in a method similar to Lusztig's for character sheaves. We also consider cleanness for cuspidal perverse sheaves and the generalized Lusztig--Shoji algorithm.

arXiv comment18 pages, minor typos corrected