Geodesic
Algebraic conditions for $t$-tough graphs
Czechoslovak Mathematical Journal, Tome 60 (2010) no. 4, pp. 1079-1089.

Voir la notice de l'article provenant de la source Czech Digital Mathematics Library

We give some algebraic conditions for $t$-tough graphs in terms of the Laplacian eigenvalues and adjacency eigenvalues of graphs.
Classification : 05C50, 05C75, 15A18
Keywords: $t$-tough graph; Laplacian matrix; adjacent matrix; eigenvalues 
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     title = {Algebraic conditions for $t$-tough graphs},
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     zbl = {1224.05307},
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     url = {http://geodesic.mathdoc.fr/item/CMJ_2010__60_4_a16/}
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Liu, BoLian; Chen, Siyuan. Algebraic conditions for $t$-tough graphs. Czechoslovak Mathematical Journal, Tome 60 (2010) no. 4, pp. 1079-1089. http://geodesic.mathdoc.fr/item/CMJ_2010__60_4_a16/