Extremal Graphs under Wiener-type Invariants

被引：0
|
作者：
Hamzeh, A. [1 ]
Hossein-Zadeh, S. [1 ]
Ashrafi, A. R. [1 ,2 ]
机构：
[1] Univ Kashan, Fac Sci, Dept Math, Kashan 8731751167, Iran
[2] Inst Res Fundamental Sci IPM, Sch Math, Tehran, Iran
来源：
MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY | 2013年 / 69卷 / 01期
关键词：
INDEX;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Let d(G, k) be the number of pairs of vertices of a graph G that are at distance k, lambda a real number, and W-lambda(G) = Sigma(k >= 1) d(G,k)k(lambda). W-lambda(G) is called the Wiener-type invariant of G associated to real number lambda. In this paper, the Wiener-type invariant of the Cartesian product of graphs is computed. As an application the Tratch-Stankevich-Zefirov of C-4 nanotubes and nanotori are computed. We also find some new bound for this graph invariant.
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收藏
页码：47 / 54
页数：8
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