Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

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Original Articles: 2015 Vol: 7 Issue: 10

The multiply version of Zagreb indices of a family of molecular graph "polycyclic aromatic hydrocarbons (PAHS)"


Let G is an arbitrary simple, connected, graph, wit h the vertex set V(G) and edge set E(G). In chemica l graph theory, we have many invariant polynomials and topo logical indices for a molecular graph, with applied in chemical and nano science and vice versa. Topological indice s are numerical parameters of a molecular graph G w hich characterize its topology.