The General Sum-Connectivity Indices of Benzenoid Systems and Phenylenes

被引：1
|
作者：
Ma, Feiying [1 ]
Deng, Hanyuan [1 ]
机构：
[1] Hunan Normal Univ, Coll Math & Comp Sci, Changsha 410081, Hunan, Peoples R China
来源：
JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE | 2011年 / 8卷 / 09期
关键词：
The General Sum-Connectivity Index; Benzenoid System; Phenylene; RANDIC INDEX;
D O I：
10.1166/jctn.2011.1896
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The general sum-connectivity index of a graph G = (V, E) is chi(alpha)(G) = Sigma uv is an element of E(d(u)+d(v))(alpha), where d(v) denotes the degree of a vertex v and a is a real number. The expressions for computing the general sum-connectivity indices of benzenoid systems and phenylenes are given, a relation between the general sum-connectivity indices of a phenylene and its corresponding hexagonal squeeze is determined. Also, the catacondensed hexagonal systems with the extremal general sum-connectivity indices are completely characterized.
引用
收藏
页码：1878 / 1881
页数：4
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