Kazhdan-Lusztig-Polynome und eine Kombinatorik für Kipp-Moduln
This article gives a selfcontained treatment of the theory of
Kazhdan-Lusztig polynomials with special emphasis on affine reflection
groups. There are only few new results but quite some new proofs.
We close with a conjectural character formula for tilting modules, which
formed the starting point of these investigations.
As a later addition, we include a brief treatment of Lusztig's
new periodic W-graphs.