摘要
利用M aw h in重合度拓展定理,研究了一类时滞Du ffing型方程x″+β(t)g(x(t-τ))=p(t)周期解存在性,其中β(t)不变号.
By employing the continuation theorem of coincidence degree theory developed by Mawhin, we study a knid of Duffing equation with a deviating argument as follows x″＋β（t）g（x（t-τ））=p（t）. When the sign of β（t） is invariable, the equation has periodic solutions.
出处
《阜阳师范学院学报（自然科学版）》
2006年第3期15-17,共3页
Journal of Fuyang Normal University(Natural Science)
关键词
DUFFING方程
周期解
重合度
时滞
Dulling equation
Periodic solution
Coincidence degree
Deviating argument
