Zagreb Indices and Zagreb Polynomials of Polycyclic Aromatic Hydrocarbons PAHs
Topological indices are numerical parameters of a molecular graph G which characterize its topology. There exits many structure in graph theory, with applied in chemical and nano science and vice versa and computing the connectivity indices of molecular graphs is an important branch in chemical graph theory. In this paper, we compute First Zagreb index Zg1(G)= Â Second Zagreb index Zg2(G)= Â and their polynomials Zg1(G,x)= and Zg2(G,x)= Â of a family of hydrocarbon structures "Polycyclic Aromatic Hydrocarbons (PAHs)".
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