Minimum general sum-connectivity index of unicyclic graphs

被引：0

作者：

Zhibin Du

Bo Zhou

Nenad Trinajstić

机构：

[1] South China Normal University,Department of Mathematics

[2] The Rugjer Bošković Institute,undefined

来源：

Journal of Mathematical Chemistry | 2010年 / 48卷

关键词：

General Randić connectivity index; General product-connectivity index; General sum-connectivity index; Properties;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The general sum-connectivity index of a graph G is defined as χα (G) = ∑edges (du + dv)α, where du denotes the degree of vertex u in G and α is a real number. In this report, we determine the minimum and the second minimum values of the general sum-connectivity indices of n-vertex unicyclic graphs for non-zero α ≥ −1, and characterize the corresponding extremal graphs.

引用

页码：697 / 703

页数：6

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