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Multiple positive periodic solutions of n species delay competition systems with harvesting terms. (English) Zbl 1225.34094
The authors explore the periodicity of a delay periodic Lotka-Volterra type multi-species competitive system with harvesting terms and derive sufficient conditions for the existence of multiple positive periodic solutions by using a continuation theorem from coincidence degree theory.
MSC:
34K60Qualitative investigation and simulation of models
34K13Periodic solutions of functional differential equations
92D25Population dynamics (general)
47N20Applications of operator theory to differential and integral equations
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