A SHORT NOTE ON ZAGREB INDICES AND HYPER ZAGREB INDICES OF GRAPHS

被引：0

作者：

Elumalai, Suresh ^{[1
]}

Mansour, Toufik ^{[2
]}

机构：

[1] SRM Inst Sci & Technol, Coll Engn & Technol, Dept Math, Kattankulathur 603203, Chengalpet, India

[2] Univ Haifa, Dept Math, IL-3498838 Haifa, Israel

来源：

MATHEMATICAL REPORTS | 2022年 / 24卷 / 04期

关键词：

minimum degree; maximum degree; Zagreb indices; hyper-Zagreb indices; BOUNDS;

D O I：

暂无

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

Let G be a simple graph with n vertices and m edges. The first hyper Zagreb index of G is defined as HM1 (G) = Sigma(uv is an element of E(G)) (d(u) + d(v))(2), where d(v) denotes the degree of a vertex v in G. The aim of this paper is to correct some of the inequalities that were derived in [9] and characterize the extremal graphs.

引用

页码：637 / 642

页数：6

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