Vertex-degree-based topological indices of hexagonal systems with equal number of edges
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摘要
In this paper, we find extremal values of vertex-degree-based topological indices over Γm, the set of hexagonal systems with m edges. The main idea consists in constructing hexagonal systems with maximal number of inlets in Γm which have simultaneously minimal number of hexagons. Also we show that the convex spiral Sh has extremal TI -value over Γ3h+⌈12h−3⌉.
论文关键词：Vertex-degree-based topological indices,Hexagonal systems,Inlets
论文评审过程：Received 1 July 2016, Revised 1 October 2016, Accepted 8 October 2016, Available online 5 November 2016, Version of Record 5 November 2016.
论文官网地址：https://doi.org/10.1016/j.amc.2016.10.015
