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Title: New bounds for the signless Laplacian spread
Author: Andrade, Enide
Dahl, Geir
Leal, Laura
Robbiano, María
Keywords: Matrix spread
Signless Laplacian spread
Signless Laplacian matrix
Issue Date: Apr-2019
Publisher: Elsevier
Abstract: Let $G$ be an undirected simple graph. The signless Laplacian spread of $G$ is defined as the maximum distance of pairs of its signless Laplacian eigenvalues. This paper establishes some new bounds, both lower and upper, for the signless Laplacian spread. Several of these bounds depend on invariant parameters of the graph. We also use a minmax principle to find several lower bounds for this spectral invariant.
Peer review: yes
DOI: 10.1016/j.laa.2018.12.019
ISSN: 0024-3795
Appears in Collections:CIDMA - Artigos
OGTCG - Artigos

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