Periodic Solution of Predator-Prey System with Beddington-Type Functional Response and Stage Structure

摘要

By using Gaines and Mawhin's continuation theorem of coincidence degree theory, we study the global existence of positive periodic solutions of a predator-prey model with Beddington-type functional response and stage structure for predator. A set of verifiable sufficient conditions to guarantee the existence of positive periodic solutions of the system are obtained, which improve some known results.