The Laplacian spread of tricyclic graphs.
Chen, Yanqing, Wang, Ligong (2009)
The Electronic Journal of Combinatorics [electronic only]
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Displaying similar documents to “Eigenvalue Bounds for the Signless Laplacian”
The Laplacian spread of tricyclic graphs.
Near threshold graphs.
Kirkland, Steve (2009)
The Electronic Journal of Combinatorics [electronic only]
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Relations between Kirchhoff index and Laplacian–energy–like invariant
B. Arsić, I. Gutman, K. Ch. Das, K. Xu (2012)
Bulletin, Classe des Sciences Mathématiques et Naturelles, Sciences mathématiques
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Some properties of the distance Laplacian eigenvalues of a graph
Mustapha Aouchiche, Pierre Hansen (2014)
Czechoslovak Mathematical Journal
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The distance Laplacian of a connected graph is defined by , where is the distance matrix of , and is the diagonal matrix whose main entries are the vertex transmissions in . The spectrum of is called the distance Laplacian spectrum of . In the present paper, we investigate some particular distance Laplacian eigenvalues. Among other results, we show that the complete graph is the unique graph with only two distinct distance Laplacian eigenvalues. We establish some properties...
Bounds for the Hückel energy of a graph.
Ghorbani, Ebrahim, Koolen, Jack H., Yang, Jae Young (2009)
The Electronic Journal of Combinatorics [electronic only]
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Algebraic conditions for -tough graphs
Bo Lian Liu, Siyuan Chen (2010)
Czechoslovak Mathematical Journal
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We give some algebraic conditions for -tough graphs in terms of the Laplacian eigenvalues and adjacency eigenvalues of graphs.
On the common-neighborhood energy of a graph
A. Alwardi, N. D. Soner, I. Gutman (2011)
Bulletin, Classe des Sciences Mathématiques et Naturelles, Sciences mathématiques
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On the numbers of positive and negative eigenvalues of a graph.
Torgašev, Aleksandar (1992)
Publications de l'Institut Mathématique. Nouvelle Série
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