Basing on traditional operator theory, operator madel for a circuit is established, and a new method for the solution of response of linear time invariance system is introduced.

在传统的算子理论基础上，建立了电路的算子模型，提出了求解线性非时变系统全响应的一种新方法。

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Fingerprint identification has been one of the most effective methods on personal identification from long time ago due to fingerprints' uniqueness and invariance.

由于指纹具有唯一性和不变性，长期以来指纹识别一直是个人身份识别最有效的方法之一。

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In this paper, the robust positive invariance of given linear state constraint sets of uncertain discrete time systems is studied by means of the mixed monotone decomposition method.

利用混合单调分解方法研究离散非线性、时变凸多面体系统族的线性状态约束集合的鲁棒正不变性。

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