Interlacing eigenvalues and graphs
Interlacing eigenvalues and graphs
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DOI:
10.1016/0024-3795(95)00199-2
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发表时间:
1995-09
影响因子:
1.1
通讯作者:
W. Haemers
中科院分区:
文献类型:
--
作者:
W. Haemers
We give several old and some new applications of eigenvalue interlacing to matrices associated to graphs. Bounds are obtained for characteristic numbers of graphs, such as the size of a maximal (co)clique, the chromatic number, the diameter, and the bandwidth, in terms of the eigenvalues of the standard adjacency matrix or the Laplacian matrix. We also deal with inequalities and regularity results concerning the structure of graphs and block designs.