Planar, outerplanar and ring graph of the intersection graph

S. Khojasteh

Let $m,n>1$ be two integers, and ${\mathbb{Z}}_n$ be a ${\mathbb{Z}}_m$-module. Let $I({\mathbb{Z}}_m{)}^{\ast }$ be the set of all non- zero proper ideals of ${\mathbb{Z}}_m$. The $\mathbb{Z}_…