摘要
利用重合度理论,研究了一类具偏差变元的时滞Duffing型微分方程ax″(t)+cx′(t)+bx(t)+g(t,x(t-τ(t)))=p(t)的周期解存在性,得到方程具有周期解的充分性条件.
By applying the theory of coincidence degree, the existence of periodic solution for a kind of delay Duffing equation with deviating argument is obtained. A sufficient condition for the existence of periodic solution about the equation is also given.
出处
《甘肃联合大学学报（自然科学版）》
2007年第4期18-21,共4页
Journal of Gansu Lianhe University :Natural Sciences
关键词
时滞DUFFING型方程
偏差变元
重合度
周期解
delay Duffing equation
deviating argument
theory of coincidence degree
periodic solution
