Multiple Positive Periodic Solutions of a Competitor-Competitor-Mutualist Lotka-Volterra System with Harvesting Terms

In this paper, by using Mawhin-s continuation theorem of coincidence degree theory, we establish the existence of multiple positive periodic solutions of a competitor-competitor-mutualist Lotka-Volterra system with harvesting terms. Finally, an example is given to illustrate our results.

• Yongkun Li
• Erliang Xu

• Positive periodic solutions
• competitor-competitor mutualist Lotka-Volterra systems
• coincidence degree
• harvesting term.

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