On Positive Periodic Solutions for Nonlinear Delayed Differential Equations

被引：5
|
作者：
Hai, D. D. [1 ]
Qian, C. [1 ]
机构：
[1] Mississippi State Univ, Dept Math, Mississippi State, MS 39762 USA
来源：
MEDITERRANEAN JOURNAL OF MATHEMATICS | 2016年 / 13卷 / 04期
关键词：
EXISTENCE;
D O I：
10.1007/s00009-015-0603-6
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
We prove the existence of positive omega-periodic solutions for the delayed differential equation x'(t) = a(t)g(x(t))x(t) - lambda b(t) f(x(t - tau(t))), where lambda is a positive parameter, are omega-periodic functions with , g does not need to be bounded above or bounded away from 0, and g(0) = 0 is allowed.
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页码：1641 / 1651
页数：11
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