Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1710240 | Applied Mathematics Letters | 2007 | 8 Pages |
Abstract
In this paper, a discrete periodic predator–prey system with type IV functional responses and time delay is investigated. Using Gaines and Mawhin’s continuation theorem from coincidence degree theory as well as some prior estimates, we get sufficient conditions for the existence of positive periodic solutions of the system. This is also the first time that the coincidence degree theory has been used to obtain multiple positive periodic solutions in discrete ecological systems.
Related Topics
Physical Sciences and Engineering
Engineering
Computational Mechanics
Authors
Weipeng Zhang, Deming Zhu, Ping Bi,