Groups all of whose undirected Cayley graphs are determined by their spectra

Alireza Abdollahi, Shahrooz Janbaz, Mojtaba Jazaeri

Let $G$ be a finite group, and $S$ be a subset of $G\setminus \{1\}$ such that $S=S^{-1}$. Suppose that $Cay(G,S)$ is the Cayley graph on $G$ with respect to the set $S$ which is th…