摘要
研究具有分布时滞的Duffing型方程,利用重合度理论研究其周期解的存在性,得到该方程周期解存在的充分条件,所得结果推广和改进了相关文献的结果。
In this paper, the existence of periodic solutions of Duffing-type equations with distributed delays is investigated by applying Mawhin＇s coincidence degree theory, and some sufficient criteria are established for the existence of periodic solutions of Duifing-type equations with distributed delays, which improve some known results in the literature.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第2期219-221,共3页
Periodical of Ocean University of China
基金
国家自然科学基金项目(10171072)资助
关键词
DUFFING型方程
分布时滞
周期解
重合度
duifing-type equation
distributed delays
periodic solutions
coincidence degree AMS（2001） Subiect Classifications： 34K14
