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Keywords:
$t$-tough graph; Laplacian matrix; adjacent matrix; eigenvalues
$t$-tough graph; Laplacian matrix; adjacent matrix; eigenvalues
Summary:
References:
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[6] Haemers, W. H.: Interlacing eigenvalues and graphs. Linear Algebra Appl. 226-228 (1995), 593-616. MR 1344588 | Zbl 0831.05044
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[9] Heuvel, J. Vanden: Hamilton cycles and eigenvalues of graphs. Linear Algebra Appl. 226-228 (1995), 723-730. MR 1344594
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