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This paper presents some sufficient conditions for the existence of solutions of fractional differential equation with nonlocal multi-point boundary conditions involving Caputo fractional derivative and integral boundary conditions. Our…

Classical Analysis and ODEs · Mathematics 2018-11-28 Faouzi Haddouchi

The purpose of this paper is to study the existence of solutions for semilinear elliptic system driven by fractional Laplacian and establish some new existence results which are obtained by virtue of the local linking theorem and the saddle…

Analysis of PDEs · Mathematics 2020-10-13 Debangana Mukherjee , Debopriya Mukherjee

In this paper, we consider the nonlocal elliptic problems in $\mathbb{R}^{N}$, which involve finite many critical exponents. By using endpoint refined Hardy--Sobolev inequality, fractional Coulomb--Sobolev space and variational method, we…

Analysis of PDEs · Mathematics 2018-05-29 Yu Su , Haibi Chen

In this paper we study the fractional p(., .)-Laplacian and we introduce the corresponding nonlocal conormal derivative for this operator. We prove basic properties of the corresponding function space and we establish a nonlocal version of…

Analysis of PDEs · Mathematics 2020-10-28 Anouar Bahrouni , Vicentiu Radulescu , Patrick Winkert

In this paper we investigate a class of elliptic problems involving a nonlocal Kirchhoff type operator with variable coefficients and data changing its sign. Under appropriated conditions on the coefficients, we have shown existence and…

Analysis of PDEs · Mathematics 2017-12-06 Camil S. Z. Redwan , João R. Santos Júnior , Antonio Suárez

We introduce a new class of quasilinear nonlocal operators and study equations involving these operators. The operators are degenerate elliptic and may have arbitrary growth in the gradient. Included are new nonlocal versions of p-Laplace,…

Analysis of PDEs · Mathematics 2016-12-05 Emmanuel Chasseigne , Espen Jakobsen

We study sharp conditions for the existence and nonexistence of infinitely many nonnegative solutions to the problem $-\Delta_p u = \lambda f(u)$ in a bounded domain with Dirichlet boundary conditions, where $f$ is a continuous function…

Analysis of PDEs · Mathematics 2026-03-25 Antonio J. Martínez Aparicio , Clara Torres-Latorre

The aim of this paper is to deal with the elliptic pdes involving a nonlinear integrodifferential operator, which are possibly degenerate and covers the case of fractional $p$-Laplacian operator. We prove the existence of a solution in the…

Analysis of PDEs · Mathematics 2017-07-13 Ratan Kr. Giri , D. Choudhuri , Amita Soni

We study the existence and uniqueness of mild and strong solutions of nonlocal nonlinear diffusion problems of $p$-Laplacian type with nonlinear boundary conditions posed in metric random walk spaces. These spaces include, among others,…

Analysis of PDEs · Mathematics 2024-05-24 Marcos Solera , Julián Toledo

This article is devoted to the study of certain models for phase transitions involving nonlocal energies. A first part is concerned with to the asymptotic analysis of a system of fractional elliptic equations of Allen-Cahn type as a…

Analysis of PDEs · Mathematics 2025-06-26 Thomas Gabard , Vincent Millot

This article proves the existence and regularity of weak solutions for a class of mixed local-nonlocal problems with singular nonlinearities. We examine both the purely singular problem and perturbed singular problems. A central…

Analysis of PDEs · Mathematics 2025-02-27 Sanjit Biswas , Prashanta Garain

A second-order regularity theory is developed for solutions to a class of quasilinear elliptic equations in divergence form, including the $p$-Laplace equation, with merely square-integrable right-hand side. Our results amount to the…

Analysis of PDEs · Mathematics 2018-05-23 Andrea Cianchi , Vladimir Maz'ya

We establish the existence of weak solutions of a nonlinear radiation-type boundary value problem for elliptic equation on divergence form with discontinuous leading coefficient. Quantitative estimates play a crucial role on the real…

Analysis of PDEs · Mathematics 2015-07-23 Luisa Consiglieri

We consider a class of fully nonlinear nonlocal degenerate elliptic operators which are modeled on the fractional Laplacian and converge to the truncated Laplacians. We investigate the validity of (strong) maximum and minimum principles,…

Analysis of PDEs · Mathematics 2023-01-25 Delia Schiera

Nonlocal and fractional-order models capture effects that classical partial differential equations cannot describe; for this reason, they are suitable for a broad class of engineering and scientific applications that feature multiscale or…

Analysis of PDEs · Mathematics 2021-10-08 Marta D'Elia , Mamikon Gulian , Hayley Olson , George Em Karniadakis

This article proves the existence, non-existence, regularity and asymptotic behavior of weak solutions for a class of mixed local-nonlocal parabolic problems involving singular nonlinearities and measure data extending the works of…

Analysis of PDEs · Mathematics 2025-09-08 Stuti Das

We obtain necessary optimality conditions for variational problems with a Lagrangian depending on a Caputo fractional derivative, a fractional and an indefinite integral. Main results give fractional Euler-Lagrange type equations and…

Optimization and Control · Mathematics 2011-11-11 Ricardo Almeida , Shakoor Pooseh , Delfim F. M. Torres

We describe a duality method to prove both existence and uniqueness of solutions to nonlocal problems like $$ (-\Delta)^s v = \mu \quad \text{in}\ \mathbb{R}^N, $$ with vanishing conditions at infinity. Here $\mu$ is a bounded Radon measure…

Analysis of PDEs · Mathematics 2025-08-11 Kenneth H. Karlsen , Francesco Petitta , Suleyman Ulusoy

In this paper we study boundary value problems for higher order elliptic differential operators in divergence form. We consider the two closely related topics of inhomogeneous problems and problems with boundary data in fractional…

Analysis of PDEs · Mathematics 2017-08-01 Ariel Barton

In this paper, we consider a class of nonlinear fractional differential equations involving Hilfer derivative with boundary conditions. First, we obtain an equivalent integral for the given boundary value problem in weighted space of…

General Mathematics · Mathematics 2019-10-01 Mohammed S Abdo , S K Panchal , Sandeep P Bhairat