摘要
本文讨论了具多个偏差变元二阶线性中立型方程，建立了所有解都振动的判别定理，并给出了一切可微解的导数振动的充分条件。所得的结果推广改进了已知的一些结论。
The second order linear neutral equahon with several deviating arguments isstudied in this paper. Theorems for all solutions to be oscillatory are established. and sufficient conditions are given which ensure those derivatives of all differentiable solutions tooscillate. OUr conclusions generlize and improve some know results.
关键词
线性中立型方程
振动性定理
偏差变元
Linear neutral equation Oscillatory theorem Deviating argument
