Results 11 to 20 of about 5,576,282 (226)

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   +2 more sources

On net-Laplacian energy of signed graphs

open access: yesCommunications in Combinatorics and Optimization, 2017
A signed graph is a graph where the edges are assigned either positive or negative signs‎. ‎Net degree of a signed graph is the difference between the number of positive and negative edges incident with a vertex‎. ‎It is said to be net-regular if all its
Nutan G‎. ‎Nayak
doaj   +2 more sources

On Laplacian-energy-like invariant and incidence energy [PDF]

open access: yesInternational Journal of Group Theory, 2015
For a simple connected graph G with n -vertices having Laplacian eigenvalues‎ ‎μ 1 ‎, ‎μ 2 ‎, ‎… ‎, ‎μ n−1 ‎, ‎μ n =0 ‎, ‎and signless Laplacian eigenvalues q 1 ‎,‎q 2 ,…‎,‎q n ‎, ‎the Laplacian-energy-like invariant(LEL ) and the incidence energy ...
Shariefuddin Pirzada , Hilal A. Ganie
doaj   +1 more source

Convolution operators and the discrete Laplacian [PDF]

open access: yes, 2009
PhDIn this thesis, we obtain new results for convolution operators on homogeneous spaces and give applications to the Laplacian on a homogeneous graph. Some of these results have been published in joint papers [13, 14] with my supervisor.
Chen, Chung-Chuan
core   +4 more sources

On distance Laplacian energy in terms of graph invariants

open access: yes, 2023
summary:For a simple connected graph $G$ of order $n$ having distance Laplacian eigenvalues $ \rho ^{L}_{1}\geq \rho ^{L}_{2}\geq \cdots \geq \rho ^{L}_{n}$, the distance Laplacian energy ${\rm DLE} (G)$ is defined as ${\rm DLE} (G)=\sum _{i=1}^{n}|\rho ^
Rather, Bilal A.   +3 more
core   +1 more source

Diffusive representations for fractional Laplacian: systems theory framework and numerical issues [PDF]

open access: yes, 2009
Bridging the gap between an abstract definition of pseudo-differential operators, such as (-\Delta)^{\gamma} for - 1/2 < \gamma < 1/2, and a concrete way to represent them has proved difficult; deriving stable numerical schemes for such operators is not ...
Matignon, Denis
core   +1 more source

Comparison of Laplacian differential reconstruction of inline holograms recorded at two different wavelengths and distances [PDF]

open access: yes, 2010
Paper presented at Biomedical Optics (BIOMED) Miami, Florida, April 11, 2010We record two holograms using two different illuminating wavelengths. Subtracting these holograms, the resulting reconstruction is an approximation to the second order Laplacian
Dayan Li   +5 more
core   +2 more sources

On the construction of L-equienergetic graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2015
For a graph G with n vertices and m edges, and having Laplacian spectrum μ1,μ2,…,μn and signless Laplacian spectrum μ1+,μ2+,…,μn+, the Laplacian energy and signless Laplacian energy of G are respectively, defined as LE(G)=∑i=1n|μi−2mn| and LE+(G)=∑i=1n ...
S. Pirzada, Hilal A. Ganie
doaj   +1 more source

Color laplacian and color signless laplacian energy of complement of subgroup graph of dihedral group [PDF]

open access: yes, 2020
Laplacian and signless laplacian energy of a finite graph is the most interesting topics on areas of energy of a graph. The new concept of energy of a graph is color energy and furthermore color laplacian and color signless laplacian energy.
Mohammad Jauhari   +7 more
core   +1 more source

Aggregating distributed energy resources for grid flexibility services: A distributed game theoretic approach

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView., 2023
Abstract We propose a hierarchical energy management scheme for aggregating Distributed Energy Resources (DERs) for grid flexibility services. To prevent a direct participation of numerous prosumers in the wholesale electricity market, aggregators, as self‐interest agents in our scheme, incentivize prosumers to provide flexibility. We firstly model the
Xiupeng Chen   +3 more
wiley   +1 more source

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