By establishing a functional differential inequality, some sufficient conditions are obtained for the oscillation of solutions of certain partial functional differential equations.
通过建立泛函微分不等式，研究了一类高阶中立型偏泛函微分方程解的振动性。
2
By using Lyapunov functional method and linear matrix inequality (LMI) approach, the absolute stability of a general neutral type of Lurie indirect control systems was studied.
基于线性矩阵不等式(LMI)的方法，将故障检测问题转化为系统鲁棒稳定性的分析问题。
3
Using pointwise modulus we discuss the strong converse inequality on K-functional;