Subgroup perfect codes in Cayley graphs

Xuanlong Ma, Gary L. Walls, Kaishun Wang +1

Let $\Gamma$ be a graph with vertex set $V(\Gamma )$. A subset $C$ of $V(\Gamma )$ is called a perfect code in $\Gamma$ if $C$ is an independent set of $\Gamma$ and every vertex in $V(\Gamma )\setminus C$ is adjac…