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Positive periodic solutions for neutral functional differential systems. (English) Zbl 1401.34079

Summary: We study the existence of positive periodic solutions of a system of neutral differential equations. In the process we construct two mappings in which one is a contraction and the other compact. A Krasnoselskii’s fixed point theorem is then used in the analysis.

MSC:

34K13 Periodic solutions to functional-differential equations
34K40 Neutral functional-differential equations
47N20 Applications of operator theory to differential and integral equations
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