Chemical Physics Letters, Vol.357, No.3-4, 255-258, 2002
The valence hyper-Wiener index for unsaturated hydrocarbons of chemical trees
By replacing the distances between pairs of vertices with relative distances, we define a novel valence hyper-Wiener index (VWW). The valence hyper-Wiener index extends the usefulness of the hyper-Wiener index to unsaturated hydrocarbons. (C) 2002 Elsevier Science B.V. All rights reserved.