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**Positive periodic solutions of cooperative systems with delays and feedback controls.**
*(English)*
Zbl 1269.34087

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.

### 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 |

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\textit{T. Niyaz} and \textit{A. Muhammadhaji}, Int. J. Differ. Equ. 2013, Article ID 502963, 9 p. (2013; Zbl 1269.34087)

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### References:

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