Edge product Cordial Labeling and Total Magic Cordial Labeling of Regular Digraphs

Abstract

Abstract-In this paper we prove that regular digraphs are Edge product Cordial and Total magic cordial. A digraph G is said to have edge product cordial labeling if there exists a mapping, f:E(G)→{0,1} and induced vertex labeling function f* :V(G)→{0,1} such that for any vertex vi V(G), f* (vi) is the product of the labels of outgoing edges provided the condition │v (0)