The study of topological indices - graph invariants that can be used for describing and predicting physicochemical or pharmacological properties of organic compounds - is currently one of the most active research fields in chemical graph theory. In this paper we study the Schultz index and find a relation with the Wiener index of the armchair polyhex nanotubes TUV C(6)[2p; q]. An exact expressi...

In a connected graph , the distance function between each pair of two vertices from set vertex is shortest them and degree denoted by number edges which are incident to The Schultz modified polynomials have defined as: respectively, where summations taken over all unordered pairs distinct in general forms shall be found indices edge – identification chain ring square graphs present work.

In this paper the Wiener and hyper Wiener index of two kinds of dendrimer graphs are determined. Using the Wiener index formula, the Szeged, Schultz, PI and Gutman indices of these graphs are also determined.