2 problems

Let $n\in\mathbb{N}$, and let $S,T\subseteq\mathbb{Z}_n$ be integral symbols, so that $\Gamma_S=Cay(\mathbb{Z}_n,S)$ and $\Gamma_T=Cay(\mathbb{Z}_n,T)$ are integral circulant graph…

Two graphs are cospectral when their adjacency matrices have the same eigenvalue multiset, and a circulant graph is Cayley-DS when every cospectral Cayley graph on the same group i…