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 Río, but some unknown scalars are involved. Our description also gives answers to their questions.
Original language | English |
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Pages (from-to) | 125-130 |
Number of pages | 5 |
Journal | Journal of Algebra and Its Applications |
Volume | 12 |
Issue number | 1 |
Publication status | Published - Feb 2013 |
Keywords
- Idempotents
- group algebras
- representation theory