Graphs with Least Eigenvalue at Least -sqrt(3)
Dragoš Cvetković, Dragan Stevanović (2003)
Publications de l'Institut Mathématique
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Dragoš Cvetković, Dragan Stevanović (2003)
Publications de l'Institut Mathématique
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Slobodan K. Simić (1995)
Publications de l'Institut Mathématique
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Slobodan K. Simić (1987)
Publications de l'Institut Mathématique
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Bojana Borovićanin (2002)
Publications de l'Institut Mathématique
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Dragoš Cvetković (1982)
Publications de l'Institut Mathématique
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J. J. Seidel (1989)
Banach Center Publications
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P. Rowlinson (2004)
Publications de l'Institut Mathématique
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Farzaneh Ramezani, Peter Rowlinson, Zoran Stanić (2022)
Czechoslovak Mathematical Journal
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We investigate signed graphs with just 2 or 3 distinct eigenvalues, mostly in the context of vertex-deleted subgraphs, the join of two signed graphs or association schemes.