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Positive periodic solutions of a class of delay differential system with feedback control. (English) Zbl 1057.34093

The authors present several sufficient conditions for guaranteeing the global existence of positive periodic solutions for a delay differential system with feedback control by using the continuation theorem given by Gaines and Mawhin and coincidence degree theory. In addition, the obtained results can be applied to some special delay population models.

MSC:

34K13 Periodic solutions to functional-differential equations
92D25 Population dynamics (general)
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