t-m-ZUMKELLER LABELING OF GRAPHS
A positive integer n is called an m-Zumkeller number if the set of all the positive divisors of n can be partitioned into two disjoint subsets of equal product. Let be a graph. A one-one function is called a t-m-Zumkeller labeling of the graph G if the induced function defined by satisfies the following conditions:
If a graph admits a t-m-Zumkeller labeling, then the graph is known as t-m-Zumkeller graph. In this paper, we prove the existence of t-m-Zumkeller labeling of different types of graphs viz., (i) paths, (ii) cycles, (iii) comb graphs, (iv) ladder graphs and (v) twig graphs.
m-Zumkeller numbers, t-m-Zumkeller labeling, comb graphs, ladder graphs, twig graphs.