Results 1 to 10 of about 6,799 (133)

On the spectral radius and energy of signless Laplacian matrix of digraphs. [PDF]

open access: yesHeliyon, 2022
Let D be a digraph of order n and with a arcs. The signless Laplacian matrix Q(D) of D is defined as Q(D)=Deg(D)+A(D), where A(D) is the adjacency matrix and Deg(D) is the diagonal matrix of vertex out-degrees of D.
Ganie HA, Shang Y.
europepmc   +9 more sources

On Distance Signless Laplacian Spectral Radius and Distance Signless Laplacian Energy [PDF]

open access: yesMathematics, 2020
In this article, we find sharp lower bounds for the spectral radius of the distance signless Laplacian matrix of a simple undirected connected graph and we apply these results to obtain sharp upper bounds for the distance signless Laplacian energy graph.
Luis Medina, Hans Nina, Macarena Trigo
semanticscholar   +6 more sources

Color signless Laplacian energy of graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2017
In this paper, we introduce the new concept of color Signless Laplacian energy L E c + ( G ) . It depends on the underlying graph G and the colors of the vertices.
P. G. Bhat, S. D’souza
semanticscholar   +5 more sources

Signless Laplacian energy aware decision making for electric car batteries based on intuitionistic fuzzy graphs. [PDF]

open access: yesSci Prog
Fuzzy graphs (FGs) contain dual-nature characteristics that may be extended to intuitionistic fuzzy graphs. These FGs are better at capturing ambiguity in situations in reality involving decision-making than FGs. In this paper, we address decision-making
Mohamed Atheeque A, Sharief Basha S.
europepmc   +5 more sources

Seidel Signless Laplacian Energy of Graphs [PDF]

open access: yesMathematics Interdisciplinary Research, 2017
Let S(G) be the Seidel matrix of a graph G of order n and let DS(G)=diag(n-1-2d1, n-1-2d2,..., n-1-2dn) be the diagonal matrix with d_i denoting the degree of a vertex v_i in G.
H. Ramane   +3 more
semanticscholar   +3 more sources

Intuitionistic fuzzy approach based on correlation coefficient and signless Laplacian energy with applications. [PDF]

open access: yesSci Rep
Decision-making in uncertain and complex environments requires methods that can effectively capture ambiguity in expert judgments. Traditional fuzzy graph models often overlook non-membership and hesitation degrees, limiting their descriptive power.
Atheeque AM, Basha SS.
europepmc   +3 more sources

Bounds for the signless Laplacian energy

open access: yesLinear Algebra and its Applications, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
N. Abreu   +4 more
semanticscholar   +7 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.
Hilal A. Ganie, S. Pirzada
semanticscholar   +5 more sources

Bounds for the signless Laplacian energy of digraphs

open access: yesIndian Journal of Pure and Applied Mathematics, 2017
The paper under review gives upper and lower bounds for the signless Laplacian energy of finite directed graphs without loops and multiple arcs but perhaps with a pair of oppositely directed arcs joining the same pair of vertices. The signless Laplacian is defined to be \(Q=D+A,\) where \(D\) is the diagonal matrix with outdegrees of vertices along the
Weige Xi, Ligong Wang
semanticscholar   +6 more sources

Signless Laplacian energy of a graph and energy of a line graph

open access: yesLinear Algebra and its Applications, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hilal A. Ganie   +2 more
semanticscholar   +5 more sources

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