On Co-Maximal Subgroup Graph of a Group

Angsuman Das, Manideepa Saha, Saba Al-Kaseasbeh

The co-maximal subgroup graph $\Gamma (G)$ of a group $G$ is a graph whose vertices are non-trivial proper subgroups of $G$ and two vertices $H$ and $K$ are adjacent if $HK=G$. In this p…