文献类型：期刊文献

英文题名：The general connectivity indices of fluoranthene-type benzenoid systems

作者：Li, Fengwei[1];Ye, Qingfang[1]

机构：[1]Shaoxing Univ, Dept Math, Shaoxing, Zhejiang, Peoples R China

年份：2016

卷号：273

起止页码：897

外文期刊名：APPLIED MATHEMATICS AND COMPUTATION

收录：SCI-EXPANDED(收录号：WOS:000365613400079)、、EI(收录号：20154601547516)、Scopus(收录号：2-s2.0-84946559529)、WOS

基金：This work was supported by NSFC (nos. 11471003 and 11401389). The authors are very thankful to Professor H. Harborth for his kindness of offering the Ref. [30]. Especially, the authors are very thankful to anonymous referees for their constructive suggestions and critical comments, which led to this improved version.

语种：英文

外文关键词：Connectivity index; Inlet; Fluoranthene-type benzenoid system; Cata-catacondensed f-benzenoid system

外文摘要：The general connectivity index R-alpha(G) of a graph G = (V,E) is defined as R-alpha(G) = Sigma((dudv)alpha)((u,v)is an element of E(G)), where (u, v) is an edge of G, d(u) and d(v) denote the degrees of the vertices u and v, respectively, and alpha not equal 0 is an arbitrary real number. In this paper, we give the expressions for computing the general connectivity indices of fluoranthene-type benzenoid systems, and we determine the extremal values of R-alpha(G) in f-benzenoid systems with h hexagons for some real number alpha. Especially, the extremal values of R-alpha(G) in cata-catacondensed fluoranthene-type benzenoid systems with h hexagons were studied. (C) 2015 Elsevier Inc. All rights reserved.