Discrete series characters for affine Hecke algebras and their formal degrees
Representation Theory
2010-10-27 v2
Abstract
We introduce the generic central character of an irreducible discrete series representation of an affine Hecke algebra. Using this invariant we give a new classification of the irreducible discrete series characters for all abstract affine Hecke algebras (except for the types E) with arbitrary positive parameters and we prove an explicit product formula for their formal degrees (in all cases).
Keywords
Cite
@article{arxiv.0804.0026,
title = {Discrete series characters for affine Hecke algebras and their formal degrees},
author = {Eric Opdam and Maarten Solleveld},
journal= {arXiv preprint arXiv:0804.0026},
year = {2010}
}
Comments
68 pages, 5 figures. In the second version an appendix was added