On prime divisors of character degrees and codegrees

Dongfang Yang

Let $G$ be a finite group, and let $\mathrm{Irr}(G)$ denote the set of irreducible complex characters of $G$. For $\epsilon \in \{\pm \}$, we define $\mathrm{cd}_ε(G)=\{ χ_ε(1)\mid χ\in \…