Composite Labelling of Unary Operation of Comp Graph and 2-Tuple of Coconut Tree

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T. R. Manikandan, V. E. Sasikala

Abstract

In this paper, we introduce the concept of composite labelling. All the graphs considered are undirected connected simple graphs with order n and size m. Let u, v, w ∈ V(G). A composite labelling is a bijective function f: (V(G) ∪ E(G)) → {1, 2, 3, ..., m + n} such that gcd(f(uv), f(vw)) ̸= 1. A graph that admits composite labelling is known as a composite graph. In this paper we investigate composite labelling for unary operation of comp graph and splitting graph.

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