单圈图Laplace谱半径的排序

Ordering of Unicyclic Graphs with Laplacian Spectral Radii

在郭曙光和刘颖等人确定了阶数固定的单圈图的第一到第九大Laplace谱半径的基础上,给出了阶数为n(n≥11)的单圈图的Laplace谱半径的第十大值到第十三大值,并刻画达到这4个数值的n阶单圈图.

Based on the former work done by GUO Shuguang and LIU Ying to determine the first to the ninth largest Laplacian spectral radii among all unicyclic graphs on n vertices, the tenth to the thirteenth largest Laplaeian spectral radii among all unicyclic graphs on n （n ≥11 ）vertices together with the corresponding graphs are determined in this paper.