一类时滞 Logistic方程周期正解的存在性(英文)  

On the Existence of Positive Periodic Solutions of A Logistic Equation with Time Delay

作　　者：赵长健[1] 王克[2] 

机构地区：[1]上海大学数学系 [2]东北师范大学数学系,长春130024

出　　处：《数学研究》2002年第3期261-265,共5页Journal of Mathematical Study

基　　金：Supported by National Natural Sciences Foundation of China(198710 12 )

摘　　要：我们利用重合度理论 ,讨论了一类时滞 L ogistic方程周期正解的存在性 ,获得了一个新结果 。In this paper, we discuss the existence of positive periodic solutions for a Logistic equation with time delay by using the theory of coincidence degree. A new result is obtained. Some related results are improved.

关 键 词：时滞LOGISTIC方程 周期正解 存在性 重合度理论 FREDHOLM算子 

分 类 号：O175.14[理学—数学]