摘要
通过使用Krasnoselskii锥不动点定理,研究了一类非自治时滞微分方程多重周期正解的存在性,把一般结果应用于几类具时滞的生物数学模型时,得到了一些新的结果.
By utilizing Krasnoselskii fixed point theorem on cone, the existence of multiple positive periodic solutions for one sort of non-autonomous differential equation with delay is studied. When applying the general result to bio-mathematics models with delay, some known results are improved, and also new results are derived.
出处
《河北师范大学学报（自然科学版）》
CAS
北大核心
2009年第5期575-578,共4页
Journal of Hebei Normal University：Natural Science
基金
北京市教改立项基金(5041104)
关键词
时滞微分方程
周期正解
锥不动点
存在性
differential equtions with delay
positive periodic solutious
fixed point on cone
existence
