几类图变换及其特征值

Several Graph Transformations and Its Eigenvalues

图的特征值是指其对应的邻接矩阵的特征值,本文主要研究把一个图作适当变换后,它的特征值的变化情况,这里主要从图的特征多项式出发并运用图角来研究特征值.

The eigenvalues of a graph are eigenvalues of its adjacency matrix.This paper mainly studies how the eigenvalues change after graph transformations.The characteristic polynomial and graph angles are applied to study them.