Wiener Index: Formulas for Non-homeomorphic

摘要

The Wiener index (W) is a graph invariant. Because of its impor- tance, various methods - numerical approaches and analytical for- mulas - have been proposed to compute W. Earlier formulas of W were derived for homeomorphic structures, polymers, and stars. The formulas are polynomials. In this paper, a method is proposed that allows calculating the coefficients of the polynomials in sets of non-homeomorphic structures.