摘要
运用压缩映射原理,研究如下非自治系统:x″(t)+cx'(t)-a(t)x(t)+b(t)xm(t-κ(t))=p(t)的概周期解的存在唯一性,并给出其概周期解存在且唯一的充分条件.所得结果推广了冯春华的主要结果及ZhouQiyuan等的有关结果.
By means of contraction mapping principle, the existence and uniqueness of almost periodic solutions of the following non -autonomous system x^n ( t ) + cx ' ( t ) - a ( t ) x ( t ) + b ( t ) x^m ( t - K ( t ) ) = p (t) is investigated. The sufficient conditions of the existence and uniqueness of almost periodic solutions is given. Our results extend the main results of Feng Chunhua and the relative results of Zhou Qiyuan.
出处
《福州大学学报(自然科学版)》
CAS
CSCD
北大核心
2011年第3期329-333,366,共6页
Journal of Fuzhou University(Natural Science Edition)
基金
福建省教育厅科研资助项目(JA08010
JB09002)
关键词
时滞Duffing方程
压缩映射
概周期解
delayed Duffing equations
contraction mapping
almost periodic solution