Results 1 to 10 of about 11,443 (267)

On energy, Laplacian energy and $p$-fold graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2015
For a graph $G$ having adjacency spectrum ($A$-spectrum) $\lambda_n\leq\lambda_{n-1}\leq\cdots\leq\lambda_1$ and Laplacian spectrum ($L$-spectrum) $0=\mu_n\leq\mu_{n-1}\leq\cdots\leq\mu_1$, the energy is defined as $ E(G)=\sum_{i=1}^{n}|\lambda_i|$ and ...
Hilal A Ganie   +2 more
doaj   +5 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 . It depends on the underlying graph and the colors of the vertices. Moreover, we compute color signless Laplacian spectrum and the color signless Laplacian energy of families
Pradeep G. Bhat, Sabitha D’Souza
doaj   +3 more sources

The Laplacian-energy like of graphs

open access: yesApplied Mathematics Letters, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bao-Xuan Zhu
exaly   +4 more sources

The Laplacian-Energy-Like Invariants of Three Types of Lattices [PDF]

open access: yesJournal of Analytical Methods in Chemistry, 2016
This paper mainly studies the Laplacian-energy-like invariants of the modified hexagonal lattice, modified Union Jack lattice, and honeycomb lattice.
Zheng-Qing Chu, Jia-Bao Liu, Xiao-Xin Li
doaj   +3 more sources

On Distance Signless Laplacian Spectral Radius and Distance Signless Laplacian Energy

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
doaj   +4 more sources

Seidel Laplacian Energy of Fuzzy graphs

open access: yesEAI Endorsed Transactions on Energy Web
The energy of a graph is related to its spectrum, which is equal to the total of the latent values of the pertinent adjacency matrix. In this research work, we proposed some of the features and the energy of the Seidel Laplacian of a fuzzy graph.
K Sivaranjani   +2 more
doaj   +4 more sources

On Eccentricity Version of Laplacian Energy of a Graph [PDF]

open access: yesMathematics Interdisciplinary Research, 2017
The energy of a graph G is equal to the sum of absolute values of the eigenvalues of the adjacency matrix of G, whereas the Laplacian energy of a graph G is equal to the sum of the absolute value of the difference between the eigenvalues of the Laplacian
Nilanjan De
doaj   +3 more sources

On Energy and Laplacian Energy of Graphs

open access: yesThe Electronic Journal of Linear Algebra, 2016
Let $G=(V,E)$ be a simple graph of order $n$ with $m$ edges. The energy of a graph $G$, denoted by $\mathcal{E}(G)$, is defined as the sum of the absolute values of all eigenvalues of $G$. The Laplacian energy of the graph $G$ is defined as \[ LE = LE(G)=\sum^n_{i=1}\left|\mu_i-\frac{2m}{n}\right| \] where $\mu_1,\,\mu_2,\,\ldots,\,\mu_{n-1 ...
Das, Kinkar Ch., Mojalal, Seyed Ahmad
openaire   +2 more sources

Monophonic Distance Laplacian Energy of Transformation Graphs Sn^++-,Sn^{+-+},Sn^{+++} [PDF]

open access: yesRatio Mathematica, 2023
Let $G$ be a simple connected graph of order $n$, $v_{i}$ its vertex. Let $\delta^{L}_{1}, \delta^{L}_{2}, \ldots, \delta^{L}_{n}$ be the eigenvalues of the distance Laplacian matrix $D^{L}$ of $G$. The distance Laplacian energy is denoted by $LE_{D}(G)$.
Diana R, Binu Selin T
doaj   +2 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.
Abreu, Nair   +4 more
openaire   +5 more sources

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