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We establish a Liouville type theorem for fully nonlinear uniformly elliptic equations in exterior domains in half spaces under quadratic boundary data and a quadratic growth condition, that is, any viscosity solution tends to a quadratic…

Analysis of PDEs · Mathematics 2026-05-28 Dongsheng Li , Rulin Liu

This paper deals with the existence of solutions to a class of fourth order nonlinear elliptic equations. The technique used relies on critical points theory. The solutions appeared as critical points of a functional restricted to a…

Differential Geometry · Mathematics 2010-10-06 Mohammed Benalili , Kamel Tahri

We prove the existence of at least three weak solutions for the fourth-order problem with indefinite weight involving the Leray-Lions operator with nonstandard growth conditions. The proof of our main result uses variational methods and the…

Analysis of PDEs · Mathematics 2022-08-23 K. Kefi , N. Irzi , M. M. Al-Shomrani , D. D. Repovš

We show that a class of divergence-form elliptic problems with quadratic growth in the gradient and non-coercive zero order terms are solvable, under essentially optimal hypotheses on the coefficients in the equation. In addition, we prove…

Analysis of PDEs · Mathematics 2012-10-25 Louis Jeanjean , Boyan Sirakov

In this paper, we analyze the existence of solution for a fractional elliptic system coupled by critical nonlinearities and endowed with mixed Dirichlet-Neumann boundary conditions. By means of variational methods and an…

Analysis of PDEs · Mathematics 2025-11-26 R. Kumar , A. Ortega

It is shown by means of reiterated two-scale convergence in the Sobolev-Orlicz setting, that the sequence of solutions of a class of highly oscillatory problems involving nonlinear elliptic operators with nonstandard growth, converges to a…

Analysis of PDEs · Mathematics 2023-02-20 Joel Fotso Tachago , Hubert Nnang , Elvira Zappale

In this paper, we study the existence and nonexistence of positive solutions for a coupled elliptic system with critical exponent and logarithmic terms. The presence of the the logarithmic terms brings major challenges and makes it…

Analysis of PDEs · Mathematics 2023-04-28 Hichem Hajaiej , Tianhao Liu , Linjie Song , Wenming Zou

The paper deals with the existence and uniqueness of a non-trivial solution to non-homogeneous $ p ( x ) -$laplacian equations, managed by non polynomial growth operator in the framework of variable exponent Sobolev spaces on Riemannian…

Analysis of PDEs · Mathematics 2020-06-09 Omar Benslimane , Ahmed Aberqi , Jaouad Bennouna

We are concerned with the existence of ground states for nonlinear Choquard equations involving a critical nonlinearity in the sense of Hardy-Littlewood-Sobolev. Our result complements previous results by Moroz and Van Schaftingen where the…

Analysis of PDEs · Mathematics 2016-11-10 Daniele Cassani , Jianjun Zhang

This paper is devoted to study a fractional Choquard problem with slightly subcritical exponents on bounded domains. When the exponent of the convolution type nonlinearity tends to the fractional critical one in the sense of…

Analysis of PDEs · Mathematics 2023-02-07 Marco G. Ghimenti , Min Liu , Zhongwei Tang

In this paper we study sufficient local conditions for the existence of non-trivial solution to a critical equation for the $p(x)-$Laplacian where the critical term is placed as a source through the boundary of the domain. The proof relies…

Analysis of PDEs · Mathematics 2013-01-15 Julian Fernandez Bonder , Nicolas Saintier , Analia Silva

The article is about an elliptic problem defined on a {\it stratified Lie group}. Both sub- and superlinear cases are considered whose solutions are guaranteed to exist in light of the interplay between the nonlinearities and the weak $L^1$…

Analysis of PDEs · Mathematics 2025-07-30 S. Sahu , D. Choudhuri , D. D. Repovš

We prove existence and regularity results for weak solutions of non linear elliptic systems with non variational structure satisfying $(p,q)$-growth conditions. In particular we are able to prove higher differentiability results under a…

Analysis of PDEs · Mathematics 2017-11-08 Miroslav Bulíček , Giovanni Cupini , Bianca Stroffolini , Anna Verde

We study a nonlinear equation with an elliptic operator having degenerate coercivity. We prove the existence of a W^{1,1}_0 solution which is distributional or entropic, according to the growth assumptions on a lower order term in…

Analysis of PDEs · Mathematics 2012-06-19 Lucio Boccardo , Gisella Croce , Luigi Orsina

This work is devoted to the study of the existence of at least one (non-zero) solution to a problem involving the discrete $p$-Laplacian. As a special case, we derive an existence theorem for a second-order discrete problem, depending on a…

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

We consider a slightly subcritical Dirichlet problem with a non-power nonlinearity in a bounded smooth domain. For this problem, standard compact embeddings cannot be used to guarantee the existence of solutions as in the case of power-type…

Analysis of PDEs · Mathematics 2020-06-30 Monica Clapp , Rosa Pardo , Angela Pistoia , Alberto Saldaña

We provide results on the existence, non-existence, multiplicity and localization of positive radial solutions for semi linear elliptic systems with Dirichlet or Robin boundary conditions on an annulus. Our approach is topological and…

Functional Analysis · Mathematics 2018-04-06 F. Cianciaruso , P. Pietramala

This paper investigates the existence of solutions for a class of nonlinear higher-order dynamic equations subject to mixed boundary conditions. We consider boundary value problems in which the nonlinear reaction functions satisfy…

Classical Analysis and ODEs · Mathematics 2025-06-11 Shalmali Bandyopadhyay , Svetlin G. Georgiev

The existence of an unbounded sequence of solutions to a conformally invariant elliptic equation having nonlocal critical-power nonlinearity is established. The primary obstacle to establishing existence of solutions is the failure of…

Analysis of PDEs · Mathematics 2025-09-16 Mona Almutairi , Mathew Gluck

In this paper, we demonstrate the existence of positive solutions for certain weakly coupled elliptic systems of sublinear growth under homogeneous Dirichlet boundary conditions. Our findings generalize existing results related to sublinear…

Analysis of PDEs · Mathematics 2025-08-01 Jean C. Cortissoz