摘要
本文运用了比较新的手法,证明了非线性微分系统 (1)(其中a(x),b(x),h(x),c(y),e(t)为连续可微函数,x,y∈R,t∈R,t∈[0,+∞),且a(x)>0)解的有界性及周期解的存在性,并应用该结论讨论了强迫振动方程:x+(f(x)+g(x)x)x+h(x)=e(t) (2)(其中f(x),g(x)为连续可微函数,x∈R,h(x),e(t)同上)解的有界性及周期解的存在性.
In this paper, we used a new method to discuss the boundedness and existence of periodic solutions of nonlinear differential systemand applied these conclusions to study the boundedness of solutions and the existence of periodic solutions of the forcing vibrating differential equations
基金
江苏省教委计划指导性项目(99KJD110005)