Abstract
A delayed three-species periodic Lotka-Volterra food-chain model without instantaneousnegative feedback is investigated. By using Gaines and Mawhin's continuation theorem of coincidence degree theory and by constructing a suitable Lyapunov functional, a set of easily verifiable sufficient conditions are derived for the existence, uniqueness, and global stability of positive periodic solutions of the system. Computer simulations are presented to illustrate the conclusions.
Original language | English |
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Pages (from-to) | 823-837 |
Number of pages | 15 |
Journal | Mathematical and Computer Modelling |
Volume | 40 |
Issue number | 7-8 |
DOIs | |
Publication status | Published - 2004 |
Keywords
- Food-chain model
- Time delay
- Periodic solution
- Coincidence degree
- Global stability