Localization results in Springer theory

The Springer correspondence is a connection between representations of
a Weyl group (such as the symmetric group) and the geometry of a
singular space known as the "nilpotent cone" (such as the space of
nilpotent n x n matrices). I will explain an approach to this subject
due to Rossmann, which though intricate does not require the use of
any complicated technology beyond algebraic topology and the basic
theory of smooth maps. As an application I will discuss "induction
theorems" which relate the Springer correspondences for a pair of Weyl
groups, one of which contains the other.