The eccentric connectivity polynomial of two classes of nanotubes

被引:101
作者
Gao, Wei [1 ]
Wang, Weifan [2 ]
机构
[1] Yunnan Normal Univ, Sch Informat Sci & Technol, Kunming 650500, Peoples R China
[2] Zhejiang Normal Univ, Dept Math, Jinhua 321004, Peoples R China
基金
中国国家自然科学基金;
关键词
Eccentric connectivity index; Eccentric connectivity polynomial; V-phenylenic nanotubes; Zig-Zag polyhex nanotubes; WIENER INDEX; GRAPH;
D O I
10.1016/j.chaos.2015.11.035
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In theoretical chemistry, the eccentric connectivity index xi(G) of a molecular graph G was introduced as xi(G) = Sigma(nu is an element of V(G)) d(v)epsilon(v) where d(v) expresses the degree of vertex v and epsilon(v) is the largest distance between v and any other vertex of G. The corresponding eccentric connectivity polynomial is denoted by xi(G, x) = Sigma(nu is an element of V(G)) d(v) chi(delta(v)) (G) (G,x). In this paper, we present the exact expressions of eccentric connectivity polynomial for V-phenylenic nanotubes and ZigZag polyhex nanotubes. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:290 / 294
页数:5
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