Geodesic
Quotient of spectral radius, (signless) Laplacian spectral radius and clique number of graphs
Czechoslovak Mathematical Journal, Tome 66 (2016) no. 3, pp. 1039-1048.

Voir la notice de l'article dans Czech Digital Mathematics Library

In this paper, the upper and lower bounds for the quotient of spectral radius (Laplacian spectral radius, signless Laplacian spectral radius) and the clique number together with the corresponding extremal graphs in the class of connected graphs with n vertices and clique number ω (2≤ω≤n) are determined. As a consequence of our results, two conjectures given in Aouchiche (2006) and Hansen (2010) are proved.
DOI : 10.1007/s10587-016-0308-4
Classification : 05C50, 05C75
Mots-clés : spectral radius; (signless) Laplacian spectral radius; clique number 
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     title = {Quotient of spectral radius, (signless) {Laplacian} spectral radius and clique number of graphs},
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Das, Kinkar Ch.; Liu, Muhuo. Quotient of spectral radius, (signless) Laplacian spectral radius and clique number of graphs. Czechoslovak Mathematical Journal, Tome 66 (2016) no. 3, pp. 1039-1048. doi : 10.1007/s10587-016-0308-4. https://geodesic-test.mathdoc.fr/articles/10.1007/s10587-016-0308-4/

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