摘要
研究了一个带有有限多个时滞的Lotka-Volterra离散模型.以持续生存函数为基础,通过定性分析方法,得到了种群一致持续生存和绝灭的条件.结果表明,该模型与其相平行的连续模型有着相同的持续生存条件.
It studied a discrete Lotka-Volterra model with a finite number of time delays. On the basis of persistence functions and by means of qualitative analysis, the conditions for the uniform persistence and extinction of the model were obtained. The result indicated that it has the same persistence conditions as the counterpart in continuous model.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
1992年第1期13-18,共6页
Journal of Southwest China Normal University(Natural Science Edition)
基金
国家自然科学基金资助课题
关键词
L-V离散模型
时滞
持续生存
discrete model
time delay
uniform persistence,
