Some remarks on the Roman domination number of the complement of the zero-divisor graph of a commutative ring

Document Type : Original paper

Author

Department of Mathematics, Saurashtra University, Rajkot, 360005, India

Abstract

The rings considered in this paper are commutative with identity that admit at least one nonzero zero-divisor. Let R be a ring. Let Z(R) denote the set of all zero-divisors of R. Let Z(R)* denote the set of all nonzero zero-divisors of R. Recall that the zero-divisor graph of R, is an undirected graph whose vertex set is Z(R)* and distinct vertices x and y are adjacent if and only if xy = 0. This paper aims to determine the Roman domination number of the complement of the zero-divisor graph of R with the assumption that its domination number is finite.

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Main Subjects


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