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Positive periodic solutions of neutral predator-prey model with Beddington-DeAngelis functional response. (English) Zbl 1219.34091

Summary: By using a continuation theorem based on coincidence degree theory, some new sufficient conditions are obtained for the existence of positive periodic solutions for a neutral predator-prey model with the Beddington-DeAngelis functional response.

MSC:

34K13 Periodic solutions to functional-differential equations
37N25 Dynamical systems in biology
92D25 Population dynamics (general)
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