摘要
研究了一个具有阶段结构和时滞的捕食-被捕食模型.分析了它的局部性质,得到某些非负平衡点全局稳定的充分条件,其中用到李雅普诺夫函数及其他方法.最后,在内部平衡点全局稳定的情况下,得出了最优捕获策略.
We consider a predator-prey model, which has a time delay and stage-structure. We analyse its local characters, and get some sufficient conditions for global stability of non-negative eqilibria . Finally, we study the optimal harvesting .
出处
《生物数学学报》
CSCD
2003年第4期390-394,共5页
Journal of Biomathematics
基金
The Work is Supported by the Educational Committee of Henan Province
关键词
捕食-被捕食
阶段结构
时滞
最优捕获
Predator-prey 5 Stage-structure
Time delay
Optimal harvesting
