研究了一类非线性滞后型泛函微分方程周期解的存在性问题。

The existence problem for a class of nonlinear retarded functional differential equation is researched.

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本文利用分解法分别对滞后型和中立型时滞大系统进行了稳定性分析与镇定分解。

The stability analysis and stabilization decomposition problems were put forward for the large-scale systems with time-delay by using the decomposition method.

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由于任何闭环控制系统都存在滞后效应，所以研究滞后型控制系统的绝对稳定性意义尤为重要。

Because the delayed effects exist in any closed - loop control system, it is more important and significant to study the stability of the control system with delay.

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