On the structure and spectra of an induced subgraph of essential ideal graph of ${\mathbb{Z}}_n$

P. Jamsheena, A. V. Chithra

Let $R$ be a commutative ring with unity. The essential ideal graph ${\mathcal{E}}_R$ of $R$ is a graph in which the vertex set comprises of set of all nonzero proper ideals of $R$ a…