Results 11 to 20 of about 537,689 (239)

The Laplacian spectrum of weighted composite networks and the applications

open access: yesAIP Advances
The topological properties of the networks can be described by the Laplacian spectra, but resolving the Laplacian spectra of networks poses difficulties. In this study, a novel approach for solving the Laplacian spectrum of weighted composite networks is
Jian Zhu   +3 more
doaj   +2 more sources

Vertex weighted Laplacian Energy of union of graphs [PDF]

open access: yesComputer Science Journal of Moldova, 2018
The vertex weighted Laplacian energy with respect to the vertex weight $w$ of a graph $G$ with $n$ vertices is defined as ~$LE_w(G)=\sum\limits_{i=1}^n|\mu_i-\bar{w}|$, where ${{\mu }_{1}},{{\mu }_{2}},...,{{\mu }_{n}}$ are the Laplacian eigenvalues of ...
Nilanjan De
doaj   +1 more source

Infinitely many solutions for three quasilinear Laplacian systems on weighted graphs

open access: yesBoundary Value Problems
We investigate a generalized poly-Laplacian system with a parameter on weighted finite graphs, a generalized poly-Laplacian system with a parameter and Dirichlet boundary value on weighted locally finite graphs, and a ( p , q ) $(p,q)$ -Laplacian system ...
Yan Pang, Junping Xie, Xingyong Zhang
doaj   +2 more sources

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

Multiple solutions for a weighted p-Laplacian problem [PDF]

open access: yesElectronic Journal of Differential Equations, 2022
We prove the existence of at least three solutions for a weighted $p$-Laplacian operator involving Dirichlet boundary condition in a weighted Sobolev space.
Rohit Kumar, Abhishek Sarkar
doaj   +3 more sources

Weighted (Co)homology and Weighted Laplacian [PDF]

open access: yes, 2023
In this paper, we generalize the combinatorial Laplace operator of Horak and Jost by introducing the $\phi$-weighted coboundary operator induced by a weight function $\phi$. Our weight function $\phi$ is a generalization of Dawson's weighted boundary map.
Xia, Kelin   +3 more
core   +1 more source

Existence and multiplicity of solutions for a weighted (p, q)-Laplacian problem on the Heisenberg Lie groups

open access: yes, 2023
Existence and multiplicity of weak solutions for a weighted (p, q)-Laplacian problem consisting of a singular term are proved, where the weight function satisfies Muckenhoupt’s condition.
Safari, Farzaneh   +2 more
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

Inertias of Laplacian matrices of weighted signed graphs

open access: yesSpecial Matrices, 2019
We study the sets of inertias achieved by Laplacian matrices of weighted signed graphs. First we characterize signed graphs with a unique Laplacian inertia.
Monfared K. Hassani   +3 more
doaj   +1 more source

Kriging-Weighted Laplacian Kernels for Grayscale Image Sharpening

open access: yesIEEE Access, 2022
Sharpening filters are used to highlight fine image details, including object edges. However, sharpening filters are very specific to different types of images as they may create undesired edge effects, over-highlight fine details, or emphasize noise ...
Tuan D. Pham
doaj   +1 more source

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