Existence of positive periodic solutions of functional difference equations with sign-changing terms

被引：0
|
作者：
Liu, Yuji [1 ]
机构：
[1] Guangdong Univ Business Studies, Dept Math, Guangzhou, Guangdong, Peoples R China
来源：
CARPATHIAN JOURNAL OF MATHEMATICS | 2010年 / 26卷 / 01期
关键词：
Positive periodic solution; functional difference equation; fixed-point theorem; sign-changing term; RED-BLOOD-CELLS; GLOBAL ATTRACTIVITY; HEMATOPOIESIS MODEL; COEFFICIENTS; OSCILLATION;
D O I：
暂无
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
This paper is concerned with the nonlinear functional difference equation Delta x(n) = -a(n)x(n) + lambda h(n)f(n, x(n - tau(n))), where h and f may change sign. Sufficient conditions for the existence of at least one positive T-periodic solution are established.
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页码：77 / 85
页数：9
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