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Multiple periodic solutions of delayed predator-prey systems with type IV functional responses on time scales. (English) Zbl 1244.34116
Summary: With the help of a continuation theorem based on Gaines and Mawhin’s coincidence degree, easily verifiable criteria are established for the existence of multiple positive periodic solutions of delayed predator-prey systems with type IV functional responses on time scales. Our results not only unify the existing ones but also widen the range of applications.
MSC:
34N05Dynamic equations on time scales or measure chains
92D25Population dynamics (general)