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 |
|---|---|
| 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