Trivial source characters in blocks of domestic representation type
Representation Theory
2026-03-20 v2
Abstract
Let be a finite group of even order, let be an algebraically closed field of characteristic , and let be a block of the group algebra which is of domestic representation type. Up to splendid Morita equivalence, precisely three cases can occur: , and the principal block of . In each case, given the character values of the ordinary irreducible characters of , we determine the ordinary characters of all trivial source -modules.
Keywords
Cite
@article{arxiv.2503.21703,
title = {Trivial source characters in blocks of domestic representation type},
author = {Bernhard Böhmler},
journal= {arXiv preprint arXiv:2503.21703},
year = {2026}
}
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29 pages