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We investigate existence and uniqueness of solutions to second-order elliptic boundary value problems containing a power nonlinearity applied to a fractional Laplacian. We detect the critical power separating the existence from the…

Analysis of PDEs · Mathematics 2020-05-20 Nicola Abatangelo , Matteo Cozzi

We study a nonlinear elliptic equation driven by the degenerate fractional p-Laplacian, with Dirichlet type condition and a jumping reaction, i.e., (p-1)-linear both at infinity and at zero but with different slopes crossing the principal…

Analysis of PDEs · Mathematics 2021-04-06 Silvia Frassu , Antonio Iannizzotto

In this paper we study a nonlocal critical growth elliptic problem driven by the fractional Laplacian in presence of jumping nonlinearities. In the main results of the paper we prove the existence of a nontrivial solution for the problem…

Analysis of PDEs · Mathematics 2026-03-12 Giovanni Molica Bisci , Kanishka Perera , Raffaella Servadei , Caterina Sportelli

We obtain fundamental imbeddings for the fractional Sobolev space with variable exponent that is a generalization of well-known fractional Sobolev spaces. As an application, we obtain a-priori bounds and multiplicity of solutions to some…

Analysis of PDEs · Mathematics 2018-10-12 Ky Ho , Yun-Ho Kim

In this work, we study the existence and multiplicity of solutions for the following problem \begin{equation}\label{probaa1} \left\{ \begin{aligned} -(\Delta)_{p}^{s} u + V(x)|u|^{p-2}u &= \lambda f(u),&x\in\Omega; u&=0,&x\in…

Analysis of PDEs · Mathematics 2025-05-20 Emer Lopera , Leandro Recôva , Adolfo Rumbos

In this paper we prove the existence of multiple solutions for a quasilinear elliptic boundary value problem, when the p-derivative at zero and the p-derivative at infinity of the nonlinearity are greater than the first eigenvalue of the…

Analysis of PDEs · Mathematics 2016-07-15 Jorge Cossio , Sigifredo Herrón , Carlos Vélez

In this paper, first we study existence results for a linearly perturbed elliptic problem driven by the fractional Laplacian. Then, we show a multiplicity result when the perturbation parameter is close to the eigenvalues. This latter…

Analysis of PDEs · Mathematics 2016-10-13 Dimitri Mugnai , Dayana Pagliardini

This work concerns with the existence of solutions for the following class of nonlocal elliptic problems \begin{equation*}\label{00} \left\{ \begin{array}{l} (-\Delta)^{s}u + u = |u|^{p-2}u\;\;\mbox{in $\Omega$},\\ u \geq 0 \quad \mbox{in}…

Analysis of PDEs · Mathematics 2018-12-13 Claudianor O. Alves , Giovanni Molica Bisci , Cesar E. Torres Ledesma

In this paper we consider the existence and multiplicity of weak solutions for the following class of fractional elliptic problem \begin{equation}\label{00} \left\{\begin{aligned} (-\Delta)^{\frac{1}{2}}u + u &= Q(x)f(u)\;\;\mbox{in}\;\;\R…

Analysis of PDEs · Mathematics 2019-10-08 Claudianor O. Alves , César E. Torres Ledesma

We investigate existence and uniqueness of solutions for a class of nonlinear nonlocal problems involving the fractional $p$-Laplacian operator and singular nonlinearities.

Analysis of PDEs · Mathematics 2016-07-04 Annamaria Canino , Luigi Montoro , Berardino Sciunzi , Marco Squassina

In this paper we study multiplicity and qualitative behavior of solutions for semilinear elliptic problems with neumann boundary condition and asymptotically linear smooth nonlinearity. We provide sufficient conditions on the number of…

Analysis of PDEs · Mathematics 2018-01-08 Oscar Agudelo , Santiago Correa , Daniel Restrepo , Carlos Velez

This paper surveys recent analytical and numerical research on linear problems for the integral fractional Laplacian, fractional obstacle problems, and fractional minimal graphs. The emphasis is on the interplay between regularity,…

Numerical Analysis · Mathematics 2019-10-18 Juan Pablo Borthagaray , Wenbo Li , Ricardo H. Nochetto

In this manuscript we deal with existence/uniqueness and regularity issues of suitable weak solutions to nonlocal problems driven by fractional Laplace type operators. Different from previous researches, in our approach we consider gradient…

Analysis of PDEs · Mathematics 2020-05-28 João Vitor da Silva , Pablo Ochoa , Analía Silva

This work is devoted to the study of the existence of solutions to nonlocal equations involving the fractional Laplacian. These equations have a variational structure and we find a nontrivial solution for them using the Mountain Pass…

Analysis of PDEs · Mathematics 2016-08-30 Giovanni Molica Bisci , Dušan Repovš

We present a variational framework for studying the existence and regularity of solutions to elliptic free boundary problems that do not necessarily minimize energy. As applications, we obtain mountain pass solutions of critical and…

Analysis of PDEs · Mathematics 2020-12-15 Kanishka Perera

This article investigates the existence, nonexistence, and multiplicity of positive solutions to the sublinear fractional elliptic problem $(P_{\lambda}^s)$. We begin by establishing several a priori estimates that provide regularity…

Analysis of PDEs · Mathematics 2025-11-12 Jefferson Abrantes , Rohit Kumar , Abhishek Sarkar

We survey some recent regularity results for fractional p-Laplacian elliptic equations, especially focusing on pure and weighted boundary H\"older continuity of the solutions of related Dirichlet problems. Then, we present some applications…

Analysis of PDEs · Mathematics 2024-12-02 Antonio Iannizzotto

In this paper, we study existence of boundary blow-up solutions for elliptic equations involving regional fractional Laplacian. We also discuss the optimality of our results.

Analysis of PDEs · Mathematics 2016-02-10 H. Chen , H. Hajaiej

By means of variational methods we establish existence and multiplicity of solutions for a class of nonlinear nonlocal problems involving the fractional p-Laplacian and a combined Sobolev and Hardy nonlinearity at subcritical and critical…

Analysis of PDEs · Mathematics 2018-02-19 Wenjing Chen , Sunra Mosconi , Marco Squassina

In this paper we study the nonlinear elliptic problem with p(x)-Laplacian (hemivariational inequality). We prove the existence of a nontrivial solution. Our approach is based on critical point theory for locally Lipschitz functionals due to…

Analysis of PDEs · Mathematics 2014-11-04 Sylwia Barnaś
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