An Upper Bound on the First Zagreb Index in Trees

Document Type: Research Paper

Authors

1 Azarbaijan Shahid Madani University, Tabriz, Iran

2 Institute for Research in Fundamental Sciences, Tehran, Iran

Abstract

In this paper we give sharp upper bounds on the Zagreb indices and characterize all trees achieving equality in these bounds. Also, we give lower bound on first Zagreb coindex of trees.

Keywords

Main Subjects


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