The atom-bond sum-connectivity index;
Chemical graphs;
D O I:
10.1016/j.molstruc.2023.136849
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The atom-bond sum-connectivity (ABS) index of a given graph G is symbolized with ABS and define by sum of the weights root d(u) + d(v)(-2)/d(u) + d(v) , where d(u) is the degree of a vertex u in G. In this paper, the extremal atom-bond sum-connectivity index among all n-vertex chemical trees, connected chemical unicyclic graphs, connected chemical bicyclic graphs, and connected chemical tricyclic graphs, were determined.
机构:
Qinghai Normal Univ, Sch Math & Stat, Xining 810008, Qinghai, Peoples R ChinaQinghai Normal Univ, Sch Math & Stat, Xining 810008, Qinghai, Peoples R China
Ge, Yanyan
Lin, Zhen
论文数: 0引用数: 0
h-index: 0
机构:
Qinghai Normal Univ, Sch Math & Stat, Xining 810008, Qinghai, Peoples R ChinaQinghai Normal Univ, Sch Math & Stat, Xining 810008, Qinghai, Peoples R China
Lin, Zhen
Wang, Jiajia
论文数: 0引用数: 0
h-index: 0
机构:
Qinghai Normal Univ, Sch Math & Stat, Xining 810008, Qinghai, Peoples R ChinaQinghai Normal Univ, Sch Math & Stat, Xining 810008, Qinghai, Peoples R China