Trees with Extreme Values of Second Zagreb Index and Coindex

Document Type: Original Scientific Paper

Authors

1 Faculty of Mathematical Sciences, University of Tabriz, Tabriz, I. R. Iran

2 Department of Mathematics, Azarbaijan Shahid Madani University, Tabriz, I. R. Iran

10.22052/mir.2018.130441.1100

Abstract

In this paper we present a generalization of the aforementioned bound for all trees in terms of the order and maximum degree. We also give a lower bound on the second Zagreb coindex of trees.

Keywords

Main Subjects