MULTIPLY DIVISOR CORDIAL LABELING IN CONTEXT OF JOINT SUM OF GRAPHS

Multiply divisor cordial labeling of a graph $G^*$ having set of node $V^*$ is a bijective h from $V(G^*)$ to $\{1,2,...,|V(G^*)|\}$ such that an edge $xy$ is assigned the label 1 if 2 divides $(h(x) \cdot h(y))$ and 0 otherwise, then the number of edges labeled with 0 and the number of edges labeled with 1 differ by at most 1. A graph having multiply divisor cordial labeling is said to be a multiply divisor cordial graph.