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 |
|---|---|
| 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