Results 51 to 60 of about 33,455 (264)

Fractional discrete Laplacian versus discretized fractional Laplacian

open access: yes, 2015
25 pages, 13 ...
Ciaurri, Ó.   +4 more
openaire   +2 more sources

The study of parabolic spectral fractional Laplacian with nonhomogeneous Dirichlet boundary conditions

open access: yesAIMS Mathematics
We use characterizations of spectral fractional Laplacian to tackle the problems of parabolic spectral fractional Laplacian incorporating nonhomogeneous Dirichlet boundary conditions.
Xingyu Liu
doaj   +1 more source

A Class of Fractional p-Laplacian Integrodifferential Equations in Banach Spaces

open access: yesAbstract and Applied Analysis, 2013
We study a class of nonlinear fractional integrodifferential equations with p-Laplacian operator in Banach space. Some new existence results are obtained via fixed point theorems for nonlocal boundary value problems of fractional p-Laplacian equations ...
Yiliang Liu, Liang Lu
doaj   +1 more source

Point-like perturbed fractional Laplacians through shrinking potentials of finite range

open access: yes, 2018
We reconstruct the rank-one, singular (point-like) perturbations of the $d$-dimensional fractional Laplacian in the physically meaningful norm-resolvent limit of fractional Schr\"{o}dinger operators with regular potentials centred around the perturbation
Michelangeli, Alessandro   +1 more
core   +1 more source

Transference of Fractional Laplacian Regularity [PDF]

open access: yes, 2014
In this note we show how to obtain regularity estimates for the fractional Laplacian on the multidimensional torus $\mathbb{T}^n$ from the fractional Laplacian on $\mathbb{R}^n$. Though at first glance this may seem quite natural, it must be carefully precised. A reason for that is the simple fact that $L^2$ functions on the torus can not be identified
Roncal, L., Stinga, P.R.
openaire   +4 more sources

A mixed operator approach to peridynamics

open access: yesMathematics in Engineering, 2023
In the present paper we propose a model describing the nonlocal behavior of an elastic body using a peridynamical approach. Indeed, peridynamics is a suitable framework for problems where discontinuities appear naturally, such as fractures, dislocations,
Federico Cluni   +4 more
doaj   +1 more source

Solutions for the Problems Involving Fractional Laplacian and Indefinite Potentials

open access: yesAdvanced Nonlinear Studies, 2017
In this paper, we consider a class of Schrödinger equations involving fractional Laplacian and indefinite potentials. By modifying the definition of the Nehari–Pankov manifold, we prove the existence and asymptotic behavior of least energy solutions.
Tang Zhongwei, Wang Lushun
doaj   +1 more source

Numerical Methods for the Fractional Laplacian: a Finite Difference-quadrature Approach

open access: yes, 2014
The fractional Laplacian $(-\Delta)^{\alpha/2}$ is a non-local operator which depends on the parameter $\alpha$ and recovers the usual Laplacian as $\alpha \to 2$.
Huang, Yanghong, Oberman, Adam
core   +1 more source

Critical Concave Convex Ambrosetti–Prodi Type Problems for Fractional 𝑝-Laplacian

open access: yesAdvanced Nonlinear Studies, 2020
In this paper, we consider a class of critical concave convex Ambrosetti–Prodi type problems involving the fractional p-Laplacian operator. By applying the linking theorem and the mountain pass theorem as well, the interaction of the nonlinearities with ...
Bueno H. P.   +3 more
doaj   +1 more source

The fractional Laplacian in power-weighted $L^p$ spaces: integration-by-parts formulas and self-adjointness

open access: yes, 2016
We consider the fractional Laplacian operator $(-\Delta)^s$ (let $ s \in (0,1) $) on Euclidean space and investigate the validity of the classical integration-by-parts formula that connects the $ L^2(\mathbb{R}^d) $ scalar product between a function and ...
Muratori, Matteo
core   +1 more source

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