food-chain model;
time delay;
periodic solution;
coincidence degree;
global stability;
D O I:
10.1016/j.mcm.2004.10.011
中图分类号:
TP39 [计算机的应用];
学科分类号:
081203 ;
0835 ;
摘要:
A delayed three-species periodic Lotka-Volterra food-chain model without instantaneous negative 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. (C) 2004 Elsevier Ltd. All rights reserved.
机构:
Huaqiao Univ, Sch Math Sci, Quanzhou, Peoples R China
Univ Sci & Technol China, Sch Math Sci, Hefei 230026, Anhui, Peoples R ChinaHuaqiao Univ, Sch Math Sci, Quanzhou, Peoples R China
Xie, Xizhuang
Niu, Lin
论文数: 0引用数: 0
h-index: 0
机构:
Univ Sci & Technol China, Sch Math Sci, Hefei 230026, Anhui, Peoples R ChinaHuaqiao Univ, Sch Math Sci, Quanzhou, Peoples R China