On graphs related to co-maximal ideals of a commutative ring

Tongsuo Wu, Meng Ye, Dancheng Lu +1

This paper studies the co-maximal graph $\Om(R)$, the induced subgraph $\G(R)$ of $\Om(R)$ whose vertex set is $R\setminus (U(R)\cup J(R))$ and a retract $\G_r(R)$ of $\G(R)$, wher…