• ARITHMETIC-COTRAHARMONIC AND CONTRAHARMONIC-ARITHMETIC INDICES
Abstract
Topological indices are applied to measure the chemical characteristics of chemical compounds. In this paper, we introduce the arithmetic-contraharmonic (AC) and contraharmonic-arithmetic (CA) indices of a graph and compute the exact values for some standard graphs and some families of nanotubes.
Keywords
arithmetic-contraharmonic index, contraharmonic-arithmetic index, graph, nanotube.
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