semi-Fredholm operator

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a semi-skilled machine operator

半熟练机器操作员

The necessary and sufficient conditions, sufficient conditions, and the constructive expression of the state feedback such that the closed loop singular distributed parameter system is asymptotic stability are given via functional analysis and linear operator semi-group theory.

应用泛函分析及线性算子半群理论的方法给出了使闭环广义分布参数系统渐进稳定的充要条件，充分条件及状态反馈的构造性表达式。

This paper studies linear elastic systems and proves that the system's main operators generate a stable analytic semi-group if the elastic operator A and damping operator B are positively defined in the form of the same domain and same order.

本文考虑了带结构阻尼的自由弹性梁分布参数系统，证明了当弹性算子A和阻尼算子B是正定具有相同定义域的同阶算子时，该系统生成一个稳定的解析半群。

Finally, by using strongly continuous semi-group theory of functional analysis, the existence of unique positive solution of the system has been proved, and the operator of system generates a positive strongly continuous semi-group is explained.

最后，利用强连续算子半群理论证明了并联可修系统的非负解的存在唯一性，并说明了系统的算子生成一个正的强连续算子半群。