Four positive periodic solutions to two species parasitical system with harvesting terms

Authors:
Kaihong Zhao;Yongkun Li
Affiliations:
Department of Mathematics, Yunnan University, Kunming, Yunnan 650091, People's Republic of China and Department of Mathematics, Yuxi Normal University, Yuxi, Yunnan 653100, People's Republic of Ch ...;Department of Mathematics, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
Venue:
Computers & Mathematics with Applications
Year:
2010

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Abstract

By using Mawhin's continuation theorem of coincidence degree theory, we establish the existence of four positive periodic solutions for two species parasitical system with harvesting terms. An example is given to illustrate the effectiveness of our results.