THE SECOND INVERSE SUM INDEG INDEX FOR SPECIAL GRAPHS

In this paper, we establish new bounds on the second inverse sum indeg (henceforth, ISI۲) index of a graph using other graph invariant, and determine the trees with the minimum and maximum ISI۲ index by p pendent vertices.

کلیدواژه ها:

bridge graph ، topological index ، second inverse sum indeg index