Results 41 to 50 of about 473,820 (257)

On fractional Laplacians $– 2$

open access: yesAnnales de l'Institut Henri Poincaré C, Analyse non linéaire, 2016
For s > −1 we compare two natural types of fractional Laplacians (−\mathrm{\Delta })^{s} , namely, the “Navier” and the “Dirichlet” ones.
Roberta Musina, Alexander I. Nazarov
openaire   +3 more sources

The Spatially Variant Fractional Laplacian

open access: yesFractional Calculus and Applied Analysis, 2023
We introduce a definition of the fractional Laplacian $(-Δ)^{s(\cdot)}$ with spatially variable order $s:Ω\to [0,1]$ and study the solvability of the associated Poisson problem on a bounded domain $Ω$. The initial motivation arises from the extension results of Caffarelli and Silvestre, and Stinga and Torrea; however the analytical tools and approaches
Andrea N. Ceretani, Carlos N. Rautenberg
openaire   +3 more sources

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

On the existence of ground state solutions to critical growth problems nonresonant at zero

open access: yesComptes Rendus. Mathématique, 2021
We prove the existence of ground state solutions to critical growth $p$-Laplacian and fractional $p$-Laplacian problems that are nonresonant at zero.
Perera, Kanishka
doaj   +1 more source

The Neumann problem for the fractional Laplacian: regularity up to the boundary [PDF]

open access: yesANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, 2020
We study the regularity up to the boundary of solutions to the Neumann problem for the fractional Laplacian. We prove that if $u$ is a weak solution of $(-\Delta)^s u=f$ in $\Omega$, $\mathcal N_s u=0$ in $\Omega^c$, then $u$ is $C^\alpha$ up tp the ...
A. Audrito   +2 more
semanticscholar   +1 more source

Remarks on the Generalized Fractional Laplacian Operator

open access: yesMathematics, 2019
The fractional Laplacian, also known as the Riesz fractional derivative operator, describes an unusual diffusion process due to random displacements executed by jumpers that are able to walk to neighbouring or nearby sites, as well as perform excursions ...
Chenkuan Li   +3 more
doaj   +1 more source

A duality approach to the fractional Laplacian with measure data [PDF]

open access: yes
We describe a duality method to prove both existence and uniqueness of solutions to nonlocal problems like ( ) s v = in R N ; with vanishing conditions at innity. Here is a bounded Radon measure whose support is compactly contained in R N , N 2, and () s
K. Karlsen, Francesco Petitta, S. Ulusoy
semanticscholar   +1 more source

Small Order Asymptotics of the Dirichlet Eigenvalue Problem for the Fractional Laplacian [PDF]

open access: yesJournal of Fourier Analysis and Applications, 2020
We study the asymptotics of Dirichlet eigenvalues and eigenfunctions of the fractional Laplacian (-Δ)s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage ...
Pierre Aime Feulefack   +2 more
semanticscholar   +1 more source

Overdetermined problems with fractional laplacian [PDF]

open access: yesESAIM: Control, Optimisation and Calculus of Variations, 2015
Added a missing assumption (1.3) in Theorem 1.1 and Theorem 1.2, which is used in the proof of Lemma 4 ...
Fall, Mouhamed Moustapha, Jarohs, Sven
openaire   +3 more sources

Boundary value problems for the fractional Pauli operator‎: ‎spectral methods and convergence analysis [PDF]

open access: yesMathematics and Computational Sciences
This paper investigates boundary value problems for the fractional Pauli operator on a finite square domain, addressing a significant gap in the literature where such problems have not been previously studied.
Yusif Gasimov, Aynura Aliyeva
doaj   +1 more source

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