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The cospectral equivalence classes of graphs having an isolated vertex

โœ Scribed by Jianfeng Wang; Qiongxiang Huang; Yongzhi Liu; Ruying Liu; Chengfu Ye

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
591 KB
Volume
57
Category
Article
ISSN
0898-1221

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๐Ÿ“œ SIMILAR VOLUMES

Note: On the generalized spectral charac
Note: On the generalized spectral characterization of graphs having an isolated vertex
โœ Wei Wang; Cheng-Xian Xu ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 128 KB

In this paper, some sufficient conditions are given on a graph G, under which it is proved that G {x} is determined by the generalized spectrum iff G is determined by the generalized spectrum, where G {x} is the graph obtained from the graph G by adding an isolated vertex x.