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Existence of multiple positive periodic solutions to a periodic predator–prey system with harvesting terms and Holling III type functional response

✍ Scribed by Fengying Wei

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
220 KB
Volume
16
Category
Article
ISSN
1007-5704

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Four positive periodic solutions of a di
Four positive periodic solutions of a discrete time delayed predator–prey system with nonmonotonic functional response and harvesting
✍ Daowei Hu; Zhengqiu Zhang 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 477 KB

## a b s t r a c t In this paper, by employing the continuation theorem of coincidence degree theory, we establish an easily verifiable criteria for the existence of at least four positive periodic solutions for a discrete time delayed predator-prey system with nonmonotonic functional response and