Results 141 to 150 of about 42,138 (164)
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On the (Signless) Laplacian Permanental Polynomials of Graphs

Graphs and Combinatorics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shunyi Liu
exaly   +4 more sources

Moore-Penrose inverses of the signless Laplacian and edge-Laplacian of graphs [PDF]

open access: yesDiscrete Mathematics, 2021
The signless Laplacian Q and signless edge-Laplacian S of a given graph may or may not be invertible. The Moore-Penrose inverses of Q and S are studied. In particular, using the incidence matrix, we find combinatorial formulas of the Moore- Penrose inverses of Q and S for trees.
Sudipta Mallik, Ryan Hessert
exaly   +4 more sources

On the bounds for signless Laplacian energy of a graph

open access: yesDiscrete Applied Mathematics, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shariefuddin Pirzada, Hilal A Ganie
exaly   +3 more sources

Graphs with maximum Laplacian and signless Laplacian Estrada index

open access: yesDiscrete Mathematics, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ivan Gutman, Luis Medina, Maria Robbiano
exaly   +4 more sources

On the distance signless Laplacian spectral radius and the distance signless Laplacian energy of graphs

Discrete Mathematics, Algorithms and Applications, 2018
The distance signless Laplacian spectral radius of a connected graph [Formula: see text] is the largest eigenvalue of the distance signless Laplacian matrix of [Formula: see text], defined as [Formula: see text], where [Formula: see text] is the distance matrix of [Formula: see text] and [Formula: see text] is the diagonal matrix of vertex ...
Abdollah Alhevaz   +2 more
openaire   +2 more sources

On (distance) signless Laplacian spectra of graphs

Journal of Applied Mathematics and Computing, 2021
Let Q(G), $${{\mathcal {D}}(G)}$$ and $${{\mathcal {D}}}^Q(G)={{\mathcal {D}}iag(Tr)} + {{\mathcal {D}}(G)}$$ be, respectively, the signless Laplacian matrix, the distance matrix and ...
B. R. Rakshith   +2 more
openaire   +1 more source

On the Distance Signless Laplacian Spectrum of Graphs

Bulletin of the Malaysian Mathematical Sciences Society, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Alhevaz, A.   +3 more
openaire   +2 more sources

Bounds for the extreme eigenvalues of the laplacian and signless laplacian of a graph

Journal of Mathematical Sciences, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

On the signless Laplacian Estrada index of cacti

Discrete Applied Mathematics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kun Wang, Xiangfeng Pan, Wenjie Ning
openaire   +3 more sources

Signless Laplacian and normalized Laplacian on the H-join operation of graphs

Discrete Mathematics, Algorithms and Applications, 2014
In this paper, we consider a generalized join operation, that is, the H-join on graphs, where H is an arbitrary graph. In terms of the signless Laplacian and the normalized Laplacian, we determine the spectra of the graphs obtained by this operation on regular graphs.
Bao-Feng Wu   +2 more
openaire   +3 more sources

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