Wedderburn decomposition of the rational group algebras of ${\mathrm{SL}}_2(q)$ and ${\mathrm{PSL}}_2(q)$

Ram Karan Choudhary, Saikat Panja

In this article, we derive explicit combinatorial formulas, depending only on $q$, for the Wedderburn decomposition of the rational group algebras of the finite linear groups $\ope…