Extremal Values of the Sombor Index in Tricyclic Graphs

被引：2

作者：

Zhang, Mengyue ^{[1
]}

Zhao, Biao ^{[1
]}

机构：

[1] Xinjiang Univ, Coll Math & Syst Sci, Urumqi 830017, Xinjiang, Peoples R China

来源：

MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY | 2023年 / 89卷 / 03期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.46793/match.89-3.741Z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A vertex-degree-based molecular structure descriptor was introduced by Ivan Gutman, named the Sombor index. The Sombor index of a graph G is defined as SO(G) = Sigma(uv is an element of E(G)) root d(G)(u)(2) + d(G)(v)(2), where d(G)(u) denotes the degree of the vertex u in G. In this paper we determine the extremal values of Sombor index of tricyclic graphs.

引用

页码：741 / 758

页数：18

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