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An Eigenvector Characterization of Cospectral Graphs Having Cospectral Joins

โœ Scribed by NARSINGH DEO; FRANK HARARY; ALLEN J. SCHWENK


Book ID
119863006
Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
365 KB
Volume
555
Category
Article
ISSN
0890-6564

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Note: On the generalized spectral charac
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.