Atom-bond sum-connectivity index of line graphs

被引：6
|
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
收藏
页码：196 / 200
页数：5
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