一类“食物有限”的离散种群模型的持久性

摘要

研究一类具有时滞的＂食物有限＂的离散种群模型,利用差分方程的振动理论,证明该系统的持久性.所得结果表明时滞对该系统的持久性没有影响.%In this paper,a ＂food-limited＂discrete population model with delay is studied.By using the oscillation theory of difference equation,it is showed the system is permanence.The result obtained shows that the delay has no influence on the permanence of the system.