Results 21 to 30 of about 6,081 (145)

The Laplacian and signless Laplacian energy of a graph under perturbation [PDF]

open access: bronzeAIP Conference Proceedings, 2020
In this paper, we find energy, Laplacian energy and signless Laplacian energy of a complete graph when perturbed by adding some vertices and edges.
E. Nandakumar   +2 more
semanticscholar   +3 more sources

Some bounds for distance signless Laplacian energy-like invariant of networks

open access: diamondCarpathian Mathematical Publications
For a graph or network $G$, denote by $D(G)$ the distance matrix and $Tr(G)$ the diagonal matrix of vertex transmissions. The distance signless Laplacian matrix of $G$ is $D^{Q}(G)=Tr(G)+D(G)$.
Abdollah Alhevaz   +3 more
semanticscholar   +4 more sources

Signless Laplacian Energy of Operations on Intuitionistic Fuzzy Graphs

open access: diamondInternational Journal of Engineering & Technology, 2018
After determining the  Signless Laplacian energy of an Intuitionistic fuzzy graphs and the study of lower and upper boundaries of Signless Laplacian energy of an Intuitionistic fuzzy graphs, then we planned to search Signless Laplacian energy of an ...
Obbu Ramesh   +2 more
semanticscholar   +4 more sources

Minimum covering reciprocal distance signless Laplacian energy of graphs

open access: diamondActa Universitatis Sapientiae, Informatica, 2018
Let G be a simple connected graph. The reciprocal transmission Tr′G(ν) of a vertex ν is defined as TrG′(ν)=∑u∈V(G)1dG(u,ν),           u≠ν. $${\rm{Tr}}_{\rm{G}}^\prime ({\rm{\nu }}) = \sum\limits_{{\rm{u}} \in {\rm{V}}(G)} {{1 \over {{{\rm{d}}_{\rm{G}}}(u,
Abdollah Alhevaz   +3 more
semanticscholar   +4 more sources

Maximality of the signless Laplacian energy

open access: closedDiscrete Mathematics, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lucélia Kowalski Pinheiro   +1 more
semanticscholar   +4 more sources

Common neighborhood (signless) Laplacian spectrum and energy of CCC-graph [PDF]

open access: greenBoletim da Sociedade Paranaense de Matemática
In this paper, we consider commuting conjugacy class graph (abbreviated as CCC-graph) of a finite group $G$ which is a graph with vertex set $\{x^G : x \in G \setminus Z(G)\}$ (where $x^G$ denotes the conjugacy class containing $x$) and two distinct ...
Firdous Ee Jannat, Rajat Kanti Nath
semanticscholar   +6 more sources

Seidel Laplacian and Seidel Signless Laplacian Energies of Commuting Graph for Dihedral Groups

open access: diamondMalaysian Journal of Fundamental and Applied Sciences
In this paper, we discuss the energy of the commuting graph. The vertex set of the graph is dihedral groups and the edges between two distinct vertices represent the commutativity of the group elements.
Mamika Ujianita Romdhini   +2 more
semanticscholar   +4 more sources

On the Energy and Spread of the Adjacency, Laplacian and Signless Laplacian Matrices of Graphs [PDF]

open access: bronzeMatch Communications in Mathematical and in Computer Chemistry
In this paper, we explore the connection between the energy and spread of the adjacency, Laplacian, and signless Laplacian matrices for graphs. We then introduce new limitations for the energy and spread of these matrices, based on previous research and ...
Kinkar Chandra Das   +2 more
semanticscholar   +3 more sources

(Generalized) Incidence and Laplacian-Like Energies

open access: yesJournal of Mathematics, 2023
In this study, for graph Γ with r connected components (also for connected nonbipartite and connected bipartite graphs) and a real number ε≠0,1, we found generalized and improved bounds for the sum of ε-th powers of Laplacian and signless Laplacian ...
A. Dilek Maden, Mohammad Tariq Rahim
doaj   +2 more sources

On Distance Signless Laplacian Estrada Index and Energy of Graphs [PDF]

open access: diamondKragujevac Journal of Mathematics, 2021
Summary: For a connected graph \(G\), the distance signless Laplacian matrix is defined as \(D^Q(G)=\mathrm{Tr}(G)+D(G)\), where \(D(G)\) is the distance matrix of \(G\) and \(\mathrm{Tr}(G)\) is the diagonal matrix of vertex transmissions of \(G\).
Abdollah Alhevaz   +2 more
openalex   +2 more sources

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