Multiple Periodicity in a Predator–Prey Model with Prey Refuge

We consider a delayed prey–predator model incorporating a refuge with a non-monotone functional response. It is supposed that prey can live in the predatory region and prey refuge, respectively. Based on Mawhin’s coincidence degree and nontrivial estimation techniques for a priori bounds of unknown...

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Bibliographic Details
Main Authors: Weijie Lu, Yonghui Xia
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/10/3/421
Description
Summary:We consider a delayed prey–predator model incorporating a refuge with a non-monotone functional response. It is supposed that prey can live in the predatory region and prey refuge, respectively. Based on Mawhin’s coincidence degree and nontrivial estimation techniques for a priori bounds of unknown solutions to the operator equation <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>L</mi><mi>v</mi><mo>=</mo><mi>λ</mi><mi>N</mi><mi>v</mi></mrow></semantics></math></inline-formula>, we prove the existence of multiple periodic solutions. Finally, an example demonstrates the feasibility of our main results.
ISSN:2227-7390