福州大学学报(自然科学版)2018,Vol.46Issue(2):151-155,5.DOI:10.7631/issn.1000-2243.17161
树状六角系统的一些基于顶点度的拓扑指数
Some vertex-degree-based topological indices of catacondensed hexagonal systems
摘要
Abstract
Based on the definition of the vertex-degree-based topological indices of a graph and the structure of the catacondensed hexagonal systems,we are concerned with the relationship between some vertex-degree-based topological indices of catacondensed hexagonal systems I (Ch) and the number of turned hexagons and branched hexagons.We give a recursion formula to calculate I (Ch)and characterize the corresponding extreme graphs.关键词
基于顶点度的拓扑指数/树状六角系统/转向六角形/分枝六角形Key words
vertex-degree-based topological indices/catacondensed hexagonal systems/turned hexagon/branched hexagon分类
数理科学引用本文复制引用
刘剑萍,郑瑞玲,陈锦松..树状六角系统的一些基于顶点度的拓扑指数[J].福州大学学报(自然科学版),2018,46(2):151-155,5.基金项目
国家自然科学基金资助项目(11471077,11771362) (11471077,11771362)
2016年福建省高校新世纪优秀人才支持计划资助项目 ()