Profitless delays for extinction in nonautonomous Lotka-Volterra system

被引：0
|
作者：
Liu, Shengqiang [1 ]
Chen, Lansun [1 ]
机构：
[1] Acad. of Math. and System Sciences, Chinese Academy of Sciences, Beijing 100080, China
来源：
Communications in Nonlinear Science and Numerical Simulation | 2001年 / 6卷 / 04期
关键词：
Systems analysis;
D O I：
10.1016/S1007-5704(01)90016-4
中图分类号：
学科分类号：
摘要：
We study the delayed periodic n-species Lotka-Voherra systems where the growth rate of each species is not always positive. The sufficient conditions for the extinction that are independent of the delays are obtained. Some known results are improved and generalized. Our results suggest that under some conditions, the introduction and the variance of the time delays can be both harmless and profitless. Discussion about the effect of time delays on the extinction of the system is also advanced.
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页码：210 / 216
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