If G is a connected graph with vertex set V (G), then the degree distance of G is defined as DD(G) = ∑ {u,v}∈V (G)(deg u + deg v)d(u, v), where deg u is the degree of vertex u, and d(u, v) denotes the distance between u and v. In the chemical literature, DD(G) is better known under ‡Corresponding author. If possible, send your correspondence via e-mail. the name Schultz index. In the class of p...