Primitive Central Idempotents of Rational Group Algebras
Representation Theory
2013-06-25 v1 Rings and Algebras
Abstract
We give a description of the primitive central idempotents of the rational group algebra QG of a finite group G. Such a description is already investigated by Jespers, Olteanu and del R\'io, but some unknown scalars are involved. Our description also gives answers to their questions.
Keywords
Cite
@article{arxiv.1306.5306,
title = {Primitive Central Idempotents of Rational Group Algebras},
author = {Geoffrey Janssens},
journal= {arXiv preprint arXiv:1306.5306},
year = {2013}
}