摘要
考虑了一类比率型三种群的捕食时滞混合模型,利用微分方程比较定理得到了保证此系统持久性的充分条件,并且通过构造适当的Lyapunov函数的方法得到了保证此系统全局吸引性的充分条件.
A three-species ratio-dependant mixed system with time delay is studied. By using compare theory, some sufficient conditions which guarantee the permanence of the system are determined. After that, by constructing a suitable Lyapunov functional, some sufficient conditions are derived for the global attractivity of the system.
出处
《山东理工大学学报（自然科学版）》
CAS
2008年第4期11-14,共4页
Journal of Shandong University of Technology:Natural Science Edition
关键词
时滞
持久性
全局吸引性
time delay
persistence
global attractivity
