Niyaz, Tursuneli; Muhammadhaji, Ahmadjan Positive periodic solutions of cooperative systems with delays and feedback controls. (English) Zbl 1269.34087 Int. J. Differ. Equ. 2013, Article ID 502963, 9 p. (2013). Summary: This paper studies a class of periodic \(n\) species cooperative Lotka-Volterra systems with continuous time delays and feedback controls. Based on the continuation theorem of the coincidence degree theory developed by Gaines and Mawhin, some new sufficient conditions on the existence of positive periodic solutions are established. Cited in 7 Documents MSC: 34K60 Qualitative investigation and simulation of models involving functional-differential equations 34K13 Periodic solutions to functional-differential equations 92D25 Population dynamics (general) 47N20 Applications of operator theory to differential and integral equations PDF BibTeX XML Cite \textit{T. Niyaz} and \textit{A. Muhammadhaji}, Int. J. Differ. Equ. 2013, Article ID 502963, 9 p. 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