具变时滞单物种差分系统周期正解的存在性(英文)  

Existence of positive periodic solution for a single species difference model with variable delay

作　　者：莫宏敏[1] 

机构地区：[1]吉首大学数学与计算机科学系,湖南吉首416000

出　　处：《湘潭师范学院学报（自然科学版）》2004年第1期22-25,共4页Journal of Xiangtan Normal University (Natural Science Edition)

摘　　要：讨论了具变时滞周期单物种差分系统 。In this paper,a single species model with variable delay governed by difference equation with periodiccoefficients is discussed. The existence of positive periodic solution for thissystem is obtained by using the continuation theorem of coincide degree.

关 键 词：单物种 差分模型 正周期解 变时滞 重合度 数学生态学 

分 类 号：Q141[生物学—生态学] O151.21[生物学—普通生物学]