Supported by the National Natural Science Foundation of China(10761008, 10461009);the Science Foundation of the State Education Ministry of China(205170)
Let G be a (molecular) graph. The Hosoya index Z(G) of G is defined as the number of subsets of the edge set E(G) in which no two edges are adjacent in G, i.e., Z(G) is the total number of matchings of G. In t...