另外，本文分析了血管影像的形态差分性质，得到了关于血管影像的最大形态差分度量。

Besides, the paper has analyzed the morphology difference property of angiogram and obtained a measure for angiogram: maximum morphology difference.

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主要的方法是利用矩阵差分方程的特征矩阵方程解的性质。

The main method is using the properties of the solutions of characteristic matrix equation.

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本文主要针对离散时间动力系统的动力学性质研究，包括差分方程及离散人工神经网络两个方面的研究。

This dissertation aims at the study of dynamical properties of discrete-time dynamical systems, which include difference equations and discrete neural networks.

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