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We study the question of the existence of infinitely many weak solutions for nonlocal equations of fractional Laplacian type with homogeneous Dirichlet boundary data, in presence of a superlinear term. Starting from the well-known…

Analysis of PDEs · Mathematics 2016-12-12 Giovanni Molica Bisci , Dušan Repovš , Raffaella Servadei

We study an elliptic equation, with homogeneous Dirichlet boundary conditions, driven by a mixed type operator (the sum of the Laplacian and the fractional Laplacian), involving a parametric reaction and an undetermined source term.…

Analysis of PDEs · Mathematics 2025-12-02 Antonio Iannizzotto

we study on compact Riemannian manifolds with boundary, the problems of existence and multiplicity of solutions to a Neumann problem involving the p-Laplacian operator and critical Sobolev exponents.

Analysis of PDEs · Mathematics 2010-08-19 Youssef Maliki

We study a nonlinear elliptic boundary value problem defined on a smooth bounded domain involving the fractional Laplace operator, a concave-convex powers term together with mixed Dirichlet-Neumann boundary conditions.

Analysis of PDEs · Mathematics 2020-09-01 J. Carmona , E. Colorado , T. Leonori , A. Ortega

This work is devoted to the study of the existence of at least one weak solution to nonlocal equations involving a general integro-differential operator of fractional type. As a special case, we derive an existence theorem for the…

Analysis of PDEs · Mathematics 2020-04-22 Giovanni Molica Bisci , Dušan D. Repovš

The focus of this study is on exploring some qualitative properties of solutions to a class of semilinear elliptic problems in bounded domains, where the boundary conditions depend non-locally on the unknown solution at specified interior…

Analysis of PDEs · Mathematics 2026-03-16 Chiun-Chang Lee

In this paper we study nonlinear second-order differential inclusions involving the ordinary vector $p$-Laplacian, a multivalued maximal monotone operator and nonlinear multivalued boundary conditions. Our framework is general and unifying…

Classical Analysis and ODEs · Mathematics 2007-05-23 Leszek Gasinski , Nikolaos S. Papageorgiou

We analyze the existence and multiplicity of positive solutions to a nonlocal elliptic problem involving the spectral fractional Laplace operator endowed with homogeneous mixed Dirichlet-Neumann boundary conditions and weighted critical…

Analysis of PDEs · Mathematics 2024-12-17 Alejandro Ortega , Luca Vilasi , Youjun Wang

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

This paper aims to study the Brezis-Nirenberg type problem driven by the nonlinear superposition of operators of the form $$A_{\mu, p}u:=\int_{[0,1]}(-\Delta)_{p}^{s} u\,\, d \mu(s),$$ where $\mu$ denotes the signed measure over $[0, 1]$.…

Analysis of PDEs · Mathematics 2025-04-08 Yergen Aikyn , Sekhar Ghosh , Vishvesh Kumar , Michael Ruzhansky

By means of variational methods we investigate existence, non-existence as well as regularity of weak solutions for a system of nonlocal equations involving the fractional laplacian operator and with nonlinearity reaching the critical…

Analysis of PDEs · Mathematics 2015-08-24 Luiz Faria , Olimpio Miyagaki , Fabio Pereira , Marco Squassina , Chengxiang Zhang

We derive the existence of solutions for an asymptotically linear equation driven by the spectral fractional Laplacian operator with mixed Dirichlet-Neumann boundary conditions. When the nonlinear term $f$ is odd and a suitable relation…

Analysis of PDEs · Mathematics 2026-03-09 Giovanni Molica Bisci , Alejandro Ortega , Luca Vilasi

In this PhD thesis, we deal with problems related to nonlocal operators, in particular to the fractional Laplacian and to some other types of fractional derivatives (the Caputo and the Marchaud derivatives). We make an extensive…

Analysis of PDEs · Mathematics 2017-05-03 Claudia Bucur

This paper is concerned with an evolution problem having an elliptic equation involving the 1-Laplacian operator and a dynamical boundary condition. We apply nonlinear semigroup theory to obtain existence and uniqueness results as well as a…

Analysis of PDEs · Mathematics 2018-02-28 M. Latorre , S. Segura de León

We develop some properties of the $p-$Neumann derivative for the fractional $p-$Laplacian in bounded domains with general $p>1$. In particular, we prove the existence of a diverging sequence of eigenvalues and we introduce the evolution…

Analysis of PDEs · Mathematics 2019-04-24 Dimitri Mugnai , Edoardo Proietti Lippi

This paper studies the properties of solutions to a class of elliptic and parabolic problems involving the fractional Laplacian. By applying the mountain pass theorem, we prove the existence of bounded classical positive solutions in the…

Analysis of PDEs · Mathematics 2025-09-30 Haipeng Lu , Mei Yu

In this article we consider a class of non-degenerate elliptic operators obtained by superpositioning the Laplacian and a general nonlocal operator. We study the existence-uniqueness results for Dirichlet boundary value problems, maximum…

Analysis of PDEs · Mathematics 2023-10-11 Anup Biswas , Mitesh Modasiya

In this paper, we study a new class of mixed double phase problems that combine local and nonlocal operators. We consider two different models. The first model is driven by the fractional $p$-Laplacian together with a local double phase…

Analysis of PDEs · Mathematics 2026-05-26 Anupma Arora , Shilpa Gupta , Patrick Winkert

The main goal of this paper is the study of two kinds of nonlinear problems depending on parameters in unbounded domains. Using a nonstandard variational approach, we first prove the existence of bounded solutions for nonlinear eigenvalue…

Analysis of PDEs · Mathematics 2016-04-04 Said El Manouni , Hichem Hajaiej , Patrick Winkert

We study a critical problem for an operator of mixed order obtained by the superposition of a Laplacian with a fractional Laplacian. In particular, we investigate the corresponding Sobolev inequality, detecting the optimal constant, which…

Analysis of PDEs · Mathematics 2025-04-18 Stefano Biagi , Serena Dipierro , Enrico Valdinoci , Eugenio Vecchi