Atom-bond sum-connectivity index of line graphs

被引：7

作者：

Ge, Yanyan ^{[1
]}

Lin, Zhen ^{[1
]}

Wang, Jiajia ^{[1
]}

机构：

[1] Qinghai Normal Univ, Sch Math & Stat, Xining 810008, Qinghai, Peoples R China

来源：

DISCRETE MATHEMATICS LETTERS | 2023年 / 12卷

基金：

中国国家自然科学基金;

关键词：

atom-bond sum-connectivity index; line graph; extremal graph;

D O I：

10.47443/dml.2023.197

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The recently introduced atom-bond sum-connectivity (ABS) index is receiving nowadays significant attention in chemical graph theory. In this paper, an inequality between the ABS index of a graph and its line graph is established. As a consequence of the obtained inequality, the unique graph with the minimum ABS index among all line graphs of unicyclic graphs of fixed order is determined.

引用

页码：196 / 200

页数：5

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