摘要
本文首先讨论一类时滞微分方程的周期解的存在性，然后将本文结果应用到具扰动项的时滞Ｌｏｇｉｓｔｉｃ方程得出其正周期解的存在性。
First, we discuss the existence of periodic solutions for a type of delay differential equations. Then, we apply the results obtained in this paper to the delay Logistic equation with perturbed term to obtain the existence of a positive periodic solution. Our results extend and improve the corresponding results in and
出处
《数学杂志》
CSCD
1998年第2期175-178,共4页
Journal of Mathematics
基金
云南省应用基础研究基金
