Extremal polyomino chains with respect to Zagreb indices

被引：25

作者：

Yarahmadi, Zahra ^{[1
]}

Ashrafi, Ali Reza ^{[2
]}

Moradi, Sirous ^{[3
]}

机构：

[1] Islamic Azad Univ, Khorramabad Branch, Fac Sci, Dept Math, Khorramabad, Iran

[2] Univ Kashan, Fac Sci, Dept Math Stat & Comp Sci, Kashan 8731751167, Iran

[3] Arak Univ, Fac Sci, Dept Math, Arak 3815688349, Iran

来源：

APPLIED MATHEMATICS LETTERS | 2012年 / 25卷 / 02期

关键词：

Zagreb indices; Polyomino chain;

D O I：

10.1016/j.aml.2011.08.008

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

For a molecular graph, the first Zagreb index M-1 is equal to the sum of squares of the vertex degrees and second Zagreb index M-2 is equal to the sum of products of degree of pairs of adjacent vertices. In this paper, Zagreb indices of polyomino chains are computed. Also the extremal polyomino chains with respect to Zagreb indices are determined. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：166 / 171

页数：6

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