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• Published Subscription 19 Aug 2019

  Contra Harmonic Mean Labeling for Some Tree and Corona Related Graphs

  By J. Rajeshni Golda, S. S. Sandhya

  Abstract: AbstractA graph G (V,E) is called a Contra Harmonic mean graph with p vertices and q edges, if it is possible to label the vertices xÎV with distinct element f(x) from 0, 1,…,q in such a way that when each edge e = uv is labeled with f(e=uv) = 16f(u)2+f(v)2f(u)+f(v)"> or 16f(u)2+f(v)2f(u)+f(v)"> with distinct edge labels. The mapping f is called Contra Harmonic mean labeling of G. Keywords: Graph, Contra …

  Published in Research & Reviews: Discrete Mathematical Structures · Vol. 6, Issue 2, 2019 · pp. 24–29 Read article →