Generalized four new sums of graphs and their Zagreb indices

被引：0
作者：
Patil, Shreekant [1 ]
Basavanagoud, Bommanahal [2 ]
机构：
[1] SECAB Inst Engn & Technol, Dept Math, Vijayapur 586109, Karnataka, India
[2] Karnatak Univ, Dept Math, Dharwad 580003, Karnataka, India
来源：
DISCRETE MATHEMATICS ALGORITHMS AND APPLICATIONS | 2022年 / 14卷 / 01期
关键词：
Degree; Zagreb index; transformation graphs; operations on graphs;
D O I：
10.1142/S1793830921500956
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The first Zagreb index of a graph G is the sum of squares of the degrees of the vertices of G. In this paper, we introduce generalized four new sums of graphs and study the first Zagreb index and coindex of the resulting graphs. In addition, we give the short proof for the earlier results of Deng, Sarala, Ayyaswamy and Balachandran [Appl. Math. Comput. 275 (2016) 422-431] on the first Zagreb index of four operations on graphs by different approach.
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页数：14
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