Eight positive periodic solutions to three species non-autonomous Lotka-Volterra cooperative systems with harvesting terms

Yongkun Li, Kaihong Zhao

Abstract


By using Mawhin's continuation theorem of coincidence degree theory
and linear inequality, we establish the existence of eight positive
periodic solutions for three species non-autonomous Lotka-Volterra
cooperative systems with harvesting terms. An example is given to
illustrate the effectiveness of our results.

Keywords


Eight positive periodic solutions; non-autonomous Lotka-Volterra cooperative system; coincidence degree; Harvesting term

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