• TRIANGULAR DIVISOR CORDIAL LABELING FOR SOME STANDARD GRAPHS

A. PONMONI*, S. NAVANEETHA KRISHNAN, A. NAGARAJAN

Abstract


Let  be a - graph. A Triangular divisor cordial labeling of a graph G with vertex set V is a bijection   where   is the  Triangular number such that if each edge uv is assigned the label 1 if f(u) divides f(v) or f(v) divides f(u) and 0 otherwise, then the number of edges labeled with 0 and the number of edges labeled with 1 differ by at most 1. If a graph has a  Triangular divisor cordial labeling, then it is called Triangular divisor cordial graph. In this paper, we proved the standard graphs such as Switching a pendant vertex in path              wheel, Flower graph   A book with rectangular pages, A book with pentagonal pages, Shell  Umbrella  , The tensor product graph  are Triangular divisor cordial graphs.


Keywords


Cordial labeling, Divisor cordial labeling, Triangular divisor cordial labeling.

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