摘要
讨论了一类具有广义密度制约的Logistic单种群时滞生态模型的一致持久性、局部无条件稳定性和全局吸引性,利用Lyapunov泛函和微分不等式的方法得到了其一致持久和全局吸引的充分条件,以及局部无条件稳定的充要条件.通过实例,运用Matlab中的solve函数,验证了文中定理条件的可实现性。
Uniform persistence, local unconditional stability and global attractivity for a type of delayed Logistic single species models are investigated. By constructing Liapunov functional and using differential inequalities, the sufficient conditions for uniform persistence and global attractivity and the sufficient and necessary conditions for local unconditional stability are obtained. The feasible character of the theories' conditions in this paper is shown by examples and by the solve function in Matlab.
出处
《兰州大学学报(自然科学版)》
CAS
CSCD
北大核心
2004年第2期8-12,共5页
Journal of Lanzhou University(Natural Sciences)
基金
国家自然科学基金(10071048)
陕西师范大学青年科研基金(2002年)
关键词
时滞
一致持久
无条件稳定
全局吸引
delay
uniform persistence
local unconditional stalibity
global attractivity