English

The character values of Iwahori--Hecke algebras on Coxeter basis elements

Representation Theory 2024-12-03 v1

Abstract

These are unpublished notes from about 1992-1993 which, retrospectively, may be regarded as a complement to Lusztig's recent paper on the trace of Coxeter elements. Our notes include explicit tables for those traces. The proofs rely on a connection with Lusztig's work on Coxeter orbits and eigenspaces of Frobenius, which may be of independent interest.

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Cite

@article{arxiv.2412.00540,
  title  = {The character values of Iwahori--Hecke algebras on Coxeter basis elements},
  author = {Meinolf Geck},
  journal= {arXiv preprint arXiv:2412.00540},
  year   = {2024}
}

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12 pages