Title of article :
Trees with Extreme Values of Second Zagreb Index and Coindex
Author/Authors :
Rasi, Reza Department of Mathematics - Azarbaijan Shahid Madani University , Sheikholeslami, Mahmoudx Department of Mathematics - Azarbaijan Shahid Madani University , Behmara, Afshin Faculty of Mathematical Sciences - University of Tabriz
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 :
Zagreb index , second Zagreb index , second Zagreb coindex , tree
