摘要
在一般条件下应用多频非线性振动理论 ,讨论了一类非线性微分方程 r-α2r3 +Mr2 =-ε rg(r,υ,Ωt) /υ α =-εαg(r,υ,Ωt)
For the nonlinear differetial eouation: -α 2r 3+Mr 2=-εg(r,υ,Ωt)/υ =-εαg(r,υ,Ωt)/υ By using analysis method,we proved that this system has pseudo periodic solutions.These solutions Lie in a invariant tovi.
出处
《昆明理工大学学报（理工版）》
2000年第2期93-95,共3页
Journal of Kunming University of Science and Technology(Natural Science Edition)
关键词
非线性微分方程
拟周期解
不变环面
almost periodic solutions
nonlinear oscillation
invarant tor
