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Existence of multiple periodic solutions for delay Lotka-Volterra competition patch systems with harvesting. (English) Zbl 1168.34349
Summary: We establish some new and interesting sufficient conditions on the existence of multiple positive periodic solutions for a delay Lotka-Volterra competition patch system with harvesting. Our method is based on Mawhin’s coincidence degree and some novel techniques for defining the operator $N(u,\lambda )$ and obtaining a priori bounds.

##### MSC:
 34K13 Periodic solutions of functional differential equations 92D25 Population dynamics (general)
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##### References:
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