On the characterization of some non-abelian simple groups using codegree set

Hongning Wang, Xuning Zhang, Selina Zhang +1

Let $G$ be a finite group and $χ\in \irr(G)$. The codegree of $\chi$ is defined as $\cod(χ)=\frac{|G:\ker(χ)|}{χ(1)}$ and $\cod(G)=\{\cod(χ) \ |\ χ\in \irr(G)\}$ is called the set of…