Abstract

‎The Hosoya index and the Merrifield-Simmons index are two types of‎ ‎graph invariants used in mathematical chemistry‎. ‎In this paper‎, ‎we give some formulas to compute these indices for some classes‎ ‎of corona product and link of two graphs‎. ‎Furthermore‎, ‎we obtain‎ ‎exact formulas of Hosoya and Merrifield-Simmons indices for the‎ ‎set of bicyclic graphs‎, ‎caterpillars and dual star‎.

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