HARMONIC RECIPROCAL STATUS INDEX AND COINDEX OF GRAPHS

HARMONIC RECIPROCAL STATUS INDEX AND COINDEX OF GRAPHS

H. S. Ramane, S. Y. Talwar

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Abstract

The reciprocal status of a vertex u is dened as the sum of reciprocal of the distances between u and all other vertices of a graph G. In this paper we have dened the harmonic reciprocal status index and coindex of a graph and obtained the bounds for it. Further the harmonic reciprocal status index and coindex of some graphs are obtained.

Keywords

Distance in graph, Reciprocal status of a vertex, Harmonic reciprocal status index.