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In this paper we use variational methods to establish the existence of solutions for a class of nonlinear elliptic problems involving a combined convolution-type and Hardy nonlinearity with subcritical and critical growth.

Analysis of PDEs · Mathematics 2026-04-09 Guangze Gu , Aleks Jevnikar

In this paper, for general $n\geq2$, we classify solutions to $n$-Laplacian Liouville equation with positive nonlinear Neumann boundary condition on the half-space $\mathbb{R}^{n}_{+}$. Under the positive nonlinear Neumann boundary…

Analysis of PDEs · Mathematics 2026-02-09 Wei Dai , Changfeng Gui , Yichen Hu , Shaolong Peng

We look for nonconstant, positive, radially nondecreasing solutions of the quasilinear equation $-\Delta_p u+u^{p-1}=f(u)$ with $p>2$, in the unit ball $B$ of $\mathbb R^N$, subject to homogeneous Neumann boundary conditions. The…

Analysis of PDEs · Mathematics 2020-04-01 Francesca Colasuonno

We study the combined effect of concave and convex nonlinearities on the number of positive solutions for a fractional system involving critical Sobolev exponents. With the help of the Nehari manifold, we prove that the system admits at…

Analysis of PDEs · Mathematics 2016-01-12 Xiaoming He , Marco Squassina , Wenming Zou

In this article, we examine two double-phase variable exponent problems, each formulated within a distinct framework. The first problem is non-variational, as the nonlinear term may depend on the gradient of the solution. The first main…

Analysis of PDEs · Mathematics 2026-04-06 Mustafa Avci

In this paper we consider a doubly critical nonlinear elliptic problem with Neumann boundary conditions. The existence of blow-up solutions for this problem is related to the blow-up analysis of the classical geometric problem of…

Analysis of PDEs · Mathematics 2024-07-04 Sergio Cruz-Blázquez

We investigate a borderline between existence and non-existence of positive solution for a nonlinear elliptic equation involving a critical Sobolev exponent in three-dimensional ball. The method is relied on a suitable choice of the…

Analysis of PDEs · Mathematics 2025-01-28 Zakaria Boucheche

In this paper, by utilizing a newly established variational principle on convex sets, we provide an existence and multiplicity result for a class of semilinear elliptic problems defined on the whole $\mathbb R^N$ with nonlinearities…

Analysis of PDEs · Mathematics 2018-08-09 J. M. do Ó , P. K. Mishra , A. Moameni

In this paper, we consider the existence and nonexistence of positive solution for a Neumann problem with double critical exponents and fast increasing weighted in half-space. This problem is closely related to the study of self-similar…

Analysis of PDEs · Mathematics 2024-04-09 Yinbin Deng , Longge Shi

We prove the existence of solution for a class of $p(x)$-Laplacian equations where the nonlinearity has a critical growth. Here, we consider two cases: the first case involves the situation where the variable exponents are periodic…

Analysis of PDEs · Mathematics 2013-12-12 Claudianor O. Alves , Marcelo C. Ferreira

This study is devoted to proving the existence of weak solutions for a nonlinear elliptic problem with Neumann-type boundary data. The problem is driven by a discontinuous power nonlinearity and a nonsmooth prescribed data. Additionally, we…

Analysis of PDEs · Mathematics 2026-04-28 Debajyoti Choudhuri , Dušan D. Repovš , Kamel Saoudi

We are interested in finding prescribed $L^2$-norm solutions to inhomogeneous nonlinear Schr\"{o}dinger (INLS) equations. For $N\ge 3$ we treat the equation with combined Hardy-Sobolev power-type nonlinearities $$ -\Delta u+\lambda…

Analysis of PDEs · Mathematics 2025-08-12 Mykael Cardoso , José Francisco de Oliveira , Olímpio Miyagaki

In this paper we consider the overdetermined boundary problem for a general second order semilinear elliptic equation on bounded domains of $\mathbf{R}^n$, where one prescribes both the Dirichlet and Neumann data of the solution. We are…

Analysis of PDEs · Mathematics 2020-08-19 Miguel Domínguez-Vázquez , Alberto Enciso , Daniel Peralta-Salas

The classical local Neumann problem is well studied and solutions of this problem lie, in general, in a Sobolev space. In this work, we focus on nonlocal Neumann problems with measurable, nonnegative kernels, whose solutions require less…

Analysis of PDEs · Mathematics 2022-08-11 Leonhard Frerick , Christian Vollmann , Michael Vu

In this paper we study quasilinear elliptic equations driven by the double phase operator along with a reaction that has a singular and a parametric superlinear term and with a nonlinear Neumann boundary condition of critical growth. Based…

Analysis of PDEs · Mathematics 2022-02-23 Ángel Crespo-Blanco , Nikolaos S. Papageorgiou , Patrick Winkert

In this paper we study logarithmic double phase problems with variable exponents involving nonlinearities that have generalized critical growth. We first prove new continuous and compact embedding results in order to guarantee the…

Analysis of PDEs · Mathematics 2025-07-21 Rakesh Arora , Ángel Crespo-Blanco , Patrick Winkert

We consider the nonlinear Neumann eigenvalue problem in outward cuspidal domains with a weighted measure. Using composition operators on Sobolev spaces, we establish embeddings of Sobolev spaces into weighted Lebesgue spaces. These…

Analysis of PDEs · Mathematics 2025-09-08 Alexander Menovschikov , Alexander Ukhlov

We establish the existence and nonexistence of entire solutions to a semilinear elliptic problem whose nonlinearity is the critical power multiplied by a function that takes the value 1 in an open bounded region and the value -1 in its…

Analysis of PDEs · Mathematics 2025-02-28 Mónica Clapp , Jorge Faya , Alberto Saldaña

In this paper we will prove the existence of three nontrivial weak solutions of the following problem involving a nonlinear integro-differential operator and a term with critical exponent. \begin{align*} \begin{split} -\mathscr{L}_\Phi u &…

Analysis of PDEs · Mathematics 2018-12-05 Amita Soni , D. Choudhuri

In the present paper, we deal with a quasilinear elliptic equation involving a critical Sobolev exponent on non-compact Randers spaces. Under very general assumptions on the perturbation, we prove the existence of a non-trivial solution.…

Analysis of PDEs · Mathematics 2023-11-28 Csaba Farkas