Laplacian spectrum of weakly zero-divisor graph of the ring ${\mathbb{Z}}_n$

Mohd Shariq, Praveen Mathil, Jitender Kumar

Let $R$ be a commutative ring with unity. The weakly zero-divisor graph $W\Gamma (R)$ of the ring $R$ is the simple undirected graph whose vertices are nonzero zero-divisors of $R$ and t…