Mark Goresky's Preprints

Topological aspects of Boolean functions (with A. Björner and R. MacPherson)

pdf file (600 K)

Kazhdan Lusztig Polynomials

Read these explanations first. Then click here for KL polynomials for finite reflection groups:
A3, A4, A5, C3, C4, D4, H3
and for Affine Weyl groups:

A2 tilde, A3 tilde, A4 tilde , B2 tilde, B3 tilde, C3 tilde, G2 tilde