Divisor graph of complement of Gamma(R)

Ravindra Kumar, Om Prakash

Published 2017-11-03Version 1

Let overline{\Gamma(R)} be the complement of zero divisor graph of a finite commutative ring R. In this article, we have provided the answer of the question (ii) raised by Osba and Alkam in their paper and prove that overline{\Gamma(R)} is a divisor graph if R is a local ring. It is shown that when R is a product of two local rings, then overline{\Gamma(R)} is a divisor graph if one of them is an integral domain. Also, we prove that if cardinality of Ass(R) = 2, then overline{\Gamma(R)} is a divisor graph.