基于随机微分方程稳定性理论，给出了随机保性能控制器存在的充分条件。
Based on stability theory in stochastic differential equations, a sufficient condition on the existence of stochastically guaranteed cost controllers is derived.
以偏微分方程稳定性的判别为依据，提出了临界风速的概念用来判定导线舞动的稳定性。
Based on the stability of differential equation, a concept of critical wind was introduced to estimate the stability of galloping.
本文利用微分方程稳定性理论，研究了城市交通容量中两种交通方式的竞争关系，它们适合于根舍模型；
Using the theory for differential equation stability, this paper investigates a struggle relationship between two traffic modes in city traffic volume , and shows they suit Gause' s model.
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