New lower bounds for the geometric-arithmetic index Articles uri icon

publication date

  • May 2018

start page

  • 451

end page

  • 466


  • 2


  • 79

International Standard Serial Number (ISSN)

  • 0340-6253


  • The aim of this paper is to obtain new inequalities involving the geometric arithmetic index GA(1) and characterize graphs extremal with respect to them. Our main results provide lower bounds on GA(1)(G) involving just the minimum and the maximum degree of the graph G.