摘要
研究了一类具有时滞的非自治离散时间n种食物链系统,并通过应用一种新的方法,获得了系统持久的充分条件.
In this paper, new sufficient conditions are obtained to ensure the nonautonomous discrete n-species food chain systems with delays are permanent.
出处
《新疆大学学报（自然科学版）》
CAS
2009年第1期46-52,共7页
Journal of Xinjiang University(Natural Science Edition)
基金
Supported by The National Natural Science Foundation of P.R.China(10361004)
The Major Project of The Ministry of Education and The Scientific Research Programmes of Colleges in Xinjiang(XJEDU2004I12,XJEDU2006I05)
关键词
持久
离散
食物链系统
时滞
Permanence
Discrete
Food chain system
Delays
positive operator
