Results 21 to 30 of about 5,262 (196)

On the Fractional Dunkl Laplacian

open access: yesFractional Calculus and Applied Analysis, 2022
In this paper, we present an approach to the fractional Dunkl Laplacian in a framework emerging from certain reflection symmetries in Euclidean spaces. Our main result is pointwise formulas, Bochner subordination, and an extension problem for the fractional Dunkl Laplacian as well.
Fethi Bouzeffour, Wissem Jedidi
openaire   +3 more sources

On the Order of the Fractional Laplacian in Determining the Spatio-Temporal Evolution of a Space-Fractional Model of Cardiac Electrophysiology. [PDF]

open access: yesPLoS One, 2015
Space-fractional operators have been used with success in a variety of practical applications to describe transport processes in media characterised by spatial connectivity properties and high structural heterogeneity altering the classical laws of ...
Cusimano N   +3 more
europepmc   +2 more sources

Singular critical elliptic problems with fractional Laplacian [PDF]

open access: yesElectronic Journal of Differential Equations, 2015
In this article, we consider the existence of solutions of the critical problem with a Hardy term for fractional Laplacian $$\displaylines{ (-\Delta)^s u -\mu \frac u{|x|^{2s}}= u^{2^*_s-1} \quad \text{in }\Omega,\cr u>0 \quad \text{in }\Omega, \cr
Xueqiao Wang, Jianfu Yang
doaj   +1 more source

The Fractional Laplacian with Reflections

open access: yesPotential Analysis, 2023
AbstractMotivated by the notion of isotropic $$\alpha $$ α -stable Lévy processes confined, by reflections, to a bounded open Lipschitz set $$D\subset \mathbb {R}^d$$ D ⊂ R
Bogdan, Krzysztof, Kunze, Markus
openaire   +2 more sources

Fractional Laplacian pyramids [PDF]

open access: yes2009 16th IEEE International Conference on Image Processing (ICIP), 2009
We provide an extension of the L2-spline pyramid (Unser et al., 1993) using polyharmonic splines. We analytically prove that the corresponding error pyramid behaves exactly as a multi-scale Laplace operator. We use the multiresolution properties of polyharmonic splines to derive an efficient, non-separable filterbank implementation.
Ricard Delgado-Gonzalo   +2 more
openaire   +2 more sources

Fractional Laplacians on ellipsoids

open access: yesMathematics in Engineering, 2021
6 pictures, 27 ...
Abatangelo N., Jarohs S., Saldana A.
openaire   +6 more sources

Laplacian pretty good fractional revival [PDF]

open access: yes, 2022
We develop the theory of pretty good fractional revival in quantum walks on graphs using their Laplacian matrices as the Hamiltonian. We classify the paths and the double stars that have Laplacian pretty good fractional revival.Comment: 17 pages; journal
Johnson, Bobae   +5 more
core   +2 more sources

Monotone iterative technique for time-space fractional diffusion equations involving delay

open access: yesNonlinear Analysis, 2021
This paper considers the initial boundary value problem for the time-space fractional delayed diffusion equation with fractional Laplacian. By using the semigroup theory of operators and the monotone iterative technique, the existence and uniqueness of ...
Qiang Li, Guotao Wang, Mei Wei
doaj   +1 more source

Fractional Laplacian in bounded domains [PDF]

open access: yesPhysical Review E, 2007
11 pages, 11 ...
Zoia, A., Rosso, A., Kardar, M.
openaire   +4 more sources

Fractional Laplacians : A short survey

open access: yesDiscrete and Continuous Dynamical Systems - S, 2022
The authors give an overview of the different operators which extend the Laplacian one to the fractional derivatives context. They concentrate on their very definitions and basic properties, stressing on some differences among them and the classical Laplacian, also by making use of explicit examples.
Daoud, Maha, Laamri, El Haj
openaire   +2 more sources

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