图角在特征值中的应用

Several Graph Transformations and Its Eigenvalues

在文献[2]中Peter Rowlinson首次引入图角的概念,对图的特征值给出了一种新形式的刻画,本文在此基础上,对几类图变换,用角刻画出了其特征值的相应变化规律。

In reference [2] Peter Rowlinson introduce the concept of graph angles, which characterize the eigenvalues with a new form, in this paper we apply the angles to get the regulatons of eigenvalues of several graph transformations.