Kazhdan-Lusztig-Polynomials and a Combinatoric for Tilting Modules
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.