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具扰动项的时滞Logistic方程的周期解
引用本文:李永昆.具扰动项的时滞Logistic方程的周期解[J].数学杂志,1998,18(2):175-178.
作者姓名:李永昆
作者单位:云南大学
基金项目:云南省应用基础研究基金
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,本文结果推广和改进了「1」和「6」的相应结果。

关 键 词:Logistic方程  周期解  拓扑度  时滞微分方程

PERIODIC SOLUTIONS OF THE DELAY LOGISTIC EQUATION WITH PERTURBED TERM
Li Yongkun.PERIODIC SOLUTIONS OF THE DELAY LOGISTIC EQUATION WITH PERTURBED TERM[J].Journal of Mathematics,1998,18(2):175-178.
Authors:Li Yongkun
Abstract: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
Keywords:delay  logistic equation  periodic solution  toplogical degree    
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