摘要
利用泛函微分方程正解的比较原理、上下极限原理及分析技巧,研究了一类具Beddington-DeAngelis型功能反应的捕食-被捕食系统,获得该系统正解的存在性以及该系统持久性的充分条件.
This paper studied a class of predator-prey models with Beddington-DeAngelis functional response by applying the comparison principle for positive solutions of functional differential equations, supper and lower limit principle and analytical techniques. Existence of positive solutions and sufficient conditions for the perrnancncc of this system are obtained.
出处
《湖南文理学院学报(自然科学版)》
CAS
2011年第2期1-4,共4页
Journal of Hunan University of Arts and Science(Science and Technology)