oscillation theory

The oscillation theory of functional differential equations has a rapid development in the recent 30 years, see [ 1-4].

泛函微分方程的振动理论作为泛函微分方程定性理论的一部分，在最近30多年中有了迅速的发展，见[1-4]。

The oscillation theory is the one of the important branches of qualitative theory of partial functional differential equations.

而振动性理论作为偏泛函微分方程定性理论的重要分支之一，对其进行研究具有极大的理论意义与实用价值。

Two Results on the Complex Oscillation Theory of Differential Equations with Polynomial Coefficients

关于多项式系数微分方程复振荡理论的两个结果

In the part of introduction in the first chapter, we introduce the development of oscillation theory of ordinary differential equations and functional differential equations briefly.

在第一章绪论部分，一方面我们简单介绍了常微分方程振动理论与泛函微分方程振动理论的起源与发展。

We have discussed the chemical phase transition thermally initiated by laser in a closed combination-type reaction system with the transport processes by using the method of nonlinear oscillation theory. The threshold intensity for occuring the chemical instability in the system has been given.

本文用非线性振荡理论方法讨论了封闭化合型反应体系中在有输运过程存在时，激光热引发的化学相变，给出了出现化学不稳定性的阈值光强。