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OPEN ACCESS eISSN 0454-8124
pISSN 1225-6951
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Kyungpook Mathematical Journal 2016; 56(4): 1103-1113

Published online December 23, 2016

Copyright © Kyungpook Mathematical Journal.

On the Diameter, Girth and Coloring of the Strong Zero-Divisor Graph of Near-rings

Prohelika Das

Department of Mathematics, Cotton College State University, Guwahati 781001, Assam, India

Received: May 8, 2014; Accepted: January 13, 2015

Abstract

In this paper, we study a directed simple graph Γs(N) for a near-ring N, where the set V*(N) of vertices is the set of all left N-subsets of N with nonzero left annihilators and for any two distinct vertices I, JV*(N), I is adjacent to J if and only if IJ = 0. Here, we deal with the diameter, girth and coloring of the graph Γs(N). Moreover, we prove a sufficient condition for occurrence of a regular element of the near-ring N in the left annihilator of some vertex in the strong zero-divisor graph Γs(N).

Keywords: Near-ring, N-subsets, diameter, girth, essential ideal, chromatic number, left annihilator.