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Through Morrey's spaces (plus Zorko's spaces) and their potentials/capacities as well as Hausdorff contents/dimensions, this paper estimates the singular sets of nonlinear elliptic systems of the even-ordered Meyers-Elcrat type and a class…

Analysis of PDEs · Mathematics 2013-05-08 David R. Adams , J. Xiao

n this paper, we prove existence of nodal solutions for singular semilinear elliptic systems without variational structure where its both components are of sign changing. Our approach is based on sub-supersolutions method combined with…

Analysis of PDEs · Mathematics 2021-10-12 Abdelkrim Moussaoui

By virtue of a weak comparison principle in small domains we prove axial symmetry in convex and symmetric smooth bounded domains as well as radial symmetry in balls for regular solutions of a class of quasi-linear elliptic systems in…

Analysis of PDEs · Mathematics 2009-07-02 Luigi Montoro , Berardino Sciunzi , Marco Squassina

In this work, we are interested in to study removability of a singular set in the boundary for some classes of quasilinear elliptic equations. We will approach this question in two different ways: through an asymptotic behavior at the…

Analysis of PDEs · Mathematics 2023-08-28 Juan A. Apaza , Manassés de Souza

Existence, regularity and location of solutions to quasilinear singular elliptic systems with general gradient dependence are established developing a method of sub-supersolution. The abstract theorems involving sub-supersolutions are…

Analysis of PDEs · Mathematics 2025-08-11 Abdelkrim Moussaoui

In this paper we study quasilinear elliptic systems with nonlinear boundary condition with fully coupled perturbations even on the boundary. Under very general assumptions our main result says that each weak solution of such systems belongs…

Analysis of PDEs · Mathematics 2019-10-04 Greta Marino , Patrick Winkert

In this paper, we propose quasilinearization methods that convert nonlocal fully-nonlinear parabolic systems into the nonlocal quasilinear parabolic systems. The nonlocal parabolic systems serve as important mathematical tools for modelling…

Analysis of PDEs · Mathematics 2022-01-05 Qian Lei , Chi Seng Pun

We establish existence and regularity of positive solutions for a class of quasilinear elliptic systems with singular and superlinear terms. The approach is based on sub-supersolution methods for systems of quasilinear singular equations…

Analysis of PDEs · Mathematics 2016-04-26 Brahim Khodja , Abdelkrim Moussaoui

We investigate partial symmetry of solutions to semi-linear and quasi-linear elliptic problems with convex nonlinearities, in domains that are either axially symmetric or radially symmetric.

Analysis of PDEs · Mathematics 2012-08-13 Kanishka Perera , Marco Squassina

In this paper we establish existence of smooth positive solutions for a singular quasilinear elliptic system involving gradient terms. The approach combines sub-supersolutions method and Schauder's fixed point theorem.

Analysis of PDEs · Mathematics 2019-06-03 Pasquale Candito , Roberto Livrea , Abdelkrim Moussaoui

This article sets forth results on the existence, positivity and boundedness of solutions for quasilinear elliptic systems involving p-Laplacian and q-Laplacian operators. The approach combines Schaefer's fixed point, comparison principle…

Analysis of PDEs · Mathematics 2019-08-05 Abdelkrim Moussaoui , Jean Vélin

We study the existence and uniqueness for weak solutions to some classes of anisotropic elliptic Dirichlet problems with data belonging to the natural dual space.

Analysis of PDEs · Mathematics 2013-02-27 R. Di Nardo , F. Feo

Existence and non-existence results are established for quasilinear elliptic problems with nonlinear boundary conditions and lack of compactness. The proofs combine variational methods with the geometrical feature, due to the competition…

Analysis of PDEs · Mathematics 2007-06-19 Roberta Filippucci , Patrizia Pucci , Vicentiu Radulescu

We define an abstract nonlinear elliptic system, admitting a variational structure, and including the vortex equations for some Maxwell-Chern-Simons gauge theories as special cases. We analyze the asymptotic behavior of its solutions, and…

Analysis of PDEs · Mathematics 2007-05-23 Tonia Ricciardi

The paper concerns singular solutions of nonlinear elliptic equations.

Analysis of PDEs · Mathematics 2009-04-21 Luis Caffarelli , YanYan Li , Louis Nirenberg

We study a boundary value elliptic problem having a lower order nonlinear term with subquadratic growth in the gradient of the solution and possibly singular when the solution vanishes. If the singularity is mild enough (and even in the…

Analysis of PDEs · Mathematics 2019-03-20 Salvador López Martínez

It is established existence, uniqueness and multiplicity of solutions for a quasilinear elliptic problem problems driven by $\Phi$-Laplacian operator. Here we consider the reflexive and nonreflexive cases using an auxiliary problem. In…

Analysis of PDEs · Mathematics 2017-09-19 M. L. M. Carvalho , J. V. Goncalves , Edcarlos D. da Silva , K. O. Silva

We consider a system of quasilinear elliptic equations, with indefinite super-linear nonlinearity, depending on two real parameters $\lambda,\mu$. By using the Nehari manifold and the notion of extremal parameter, we extend some results…

Analysis of PDEs · Mathematics 2019-06-06 Kaye Silva , Abiel Macedo

We consider positive solutions to semilinear elliptic problems with singular nonlinearities, under zero Dirichlet boundary condition. We exploit a refined version of the moving plane method to prove symmetry and monotonicity properties of…

Analysis of PDEs · Mathematics 2016-07-29 Annamaria Canino , Luigi Montoro , Berardino Sciunzi

We establish the existence of strong solutions to a class of nonlinear strongly coupled and uniform elliptic systems consisting of more than two equations. The existence of of nontrivial and non constant solutions (or pattern formations)…

Analysis of PDEs · Mathematics 2016-03-18 Dung Le