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Graphs with three distinct distance eigenvalues

open access: yesApplied Mathematics and Computation, 2023
In this paper, some special distance spectral properties of graphs are considered. Concretely, we recursively construct an infinite family of trees with distance eigenvalue $-1$, and determine all $\{C_3,C_4\}$-free connected graphs with three distinct distance eigenvalues of which the smallest one is equal to $-3$, which partially answers a problem ...
Zhang, Yuke, Lin, Huiqiu
openaire   +4 more sources

Remoteness and distance, distance (signless) Laplacian eigenvalues of a graph [PDF]

open access: yesJournal of Inequalities and Applications, 2018
Let G be a connected graph of order n. The remoteness of G, denoted by ρ, is the maximum average distance from a vertex to all other vertices. Let [Formula: see text], [Formula: see text] and [Formula: see text] be the distance, distance Laplacian and distance signless Laplacian eigenvalues of G, respectively.
Huicai Jia, Hongye Song
openaire   +3 more sources

On the second largest distance eigenvalue [PDF]

open access: yesLinear and Multilinear Algebra, 2016
We characterize all connected graphs whose second largest distance eigenvalues belong to , as well as all trees whose second distance eigenvalues belong to . We also consider unicyclic graphs whose second distance eigenvalues belong to .
Rundan Xing, Bo Zhou
openaire   +1 more source

Distance Signless Laplacian Eigenvalues, Diameter, and Clique Number

open access: yesDiscrete Mathematics Letters, 2022
Summary: Let \(G\) be a connected graph of ordern. Let \(\operatorname{Diag}(\mathrm{Tr})\) be the diagonal matrix of vertex transmissions and let \(\mathcal{D}(G)\) be the distance matrix of \(G\). The distance signless Laplacian matrix of \(G\) is defined as \(\mathcal{D}^{\mathcal{Q}}(G) =\operatorname{Diag}(\mathrm{Tr}) + \mathcal{D}(G)\) and the ...
Saleem Khan, Shariefuddin Pirzada
openaire   +3 more sources

Distance (Signless) Laplacian Eigenvalues of $k$-uniform Hypergraphs

open access: yesTaiwanese Journal of Mathematics, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liu, Xiangxiang, Wang, Ligong
openaire   +1 more source

Bounds on distances between eigenvalues

open access: yesLinear Algebra and its Applications, 1984
This paper presents bounds for the distances between a given real eigenvalue \(\lambda\) of a real square matrix A and its remaining eigenvalues. In the main result these bounds are given in terms of a norm of the matrix A-\(\lambda\) I and its Drazin inverse, respectively, on the subspace orthogonal to an eigenvector corresponding to \(\lambda\). Some
Haviv, Moshe, Rothblum, Uriel G.
openaire   +1 more source

Distance Eigenvalues and Forwarding Indices of Circulants

open access: yesTaiwanese Journal of Mathematics, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liu, Shuting, Lin, Huiqiu, Shu, Jinlong
openaire   +3 more sources

On Least Distance Eigenvalue of Uniform Hypergraphs

open access: yesTaiwanese Journal of Mathematics, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lin, Hongying, Zhou, Bo
openaire   +2 more sources

Distance-regular Cayley graphs with least eigenvalue $-2$

open access: yesDesigns Codes and Cryptography, 2015
13 pages, On line paper as open access to publish in Des.
van Dam, Edwin R.   +2 more
openaire   +2 more sources

On the distance and distance Laplacian eigenvalues of graphs

open access: yesLinear Algebra and its Applications, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lin, Huiqiu   +3 more
openaire   +1 more source

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