The enhanced quotient graph of the quotient of a finite group

Luis A. Dupont, Daniel G. Mendoza, Miriam Rodríguez

For a finite group $G$ with a normal subgroup $H$, the enhanced quotient graph of $G/H$, denoted by ${\mathcal{G}}_H(G),$ is the graph with vertex set $V=(G\backslash H)\cup \{e\}$…