Almost all standard double covers of abelian Cayley graphs have smallest possible automorphism groups

Binzhou Xia, Zhishuo Zhang, Shasha Zheng

The standard double cover of a graph $\Gamma$ is the direct product $\Gamma \times K_2$. A graph $\Gamma$ is said to be stable if all the automorphisms of $\Gamma \times K_2$ come from its factors. Alth…