研究了一类被开发的具有功能性反应(Holling Ⅲ)的捕食-食饵系统.利用R.E.Gains和J.L.Mawhin的重合度理论及微分不等式并结合一些分析技巧,获得了该系统至少存在一个正周期解的充分条件,从而使该种群达到一个新的适宜各物种持续共存、发展的稳定状态.
In this paper, we study a class of predator-prey model exploited with functional response (Holling Ⅲ). By using Cains and Mawhin' s continuation theorem of coincidence degree theory and by using differential inequalities as well as some analytical techniques, we establish a sufficient condition for the existence of positive periodic solution of the model, so the species arrives at a new stable state in which they could sustainable develop.