On $\BCI$-groups and $\CI$-groups

Asieh Sattari, Majid Arezoomand, Mohammad A. Iranmanesh

Let $G$ be a finite group and $S$ be a subset of $G.$ A bi-Cayley graph $\BCay(G,S)$ is a simple and an undirected graph with vertex-set $G\times \{1,2\}$ and edge-set $\{\{(g,1),(s…