The Hosoya Index and the Merrifield–Simmons Index of Some Nanostructures

The Hosoya index and the Merrifield–Simmons index are two types of graph invariants used in mathematical chemistry. In this chapter, we give ex act formulas for the Hosoya index and the Merrifield–Simmons index of bridge graph and as an application of these formulas, we obtain these indices for some nano structures.