Computing Fifth Geometric-Arithmetic Index of Dendrimer Nanostars

Mohammad Reza Farahani


Let G=(V;E) be a simple connected graph. The geometric-arithmetic (GA) index was introduced by Vukicevic and Furtula in 2009 and defined as  where dv denotes the degree of vertex v of G. In 2011, A. Graovac et al defined a new version of GA index as  where  In this paper, we give explicit formulas for the fifth geometric-arithmetic index of an infinite class of dendrimer nanostars.

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