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The present paper concerns with the existence of blow-up solution for a class of elliptic system with convection term. Here, we prove a result involving sub and supersolution for a class of elliptic system whose nonlinearity can depend of…

Analysis of PDEs · Mathematics 2014-02-11 Claudianor O. Alves , Dragos-Patru Covei

The existence of entire solutions to quasilinear elliptic systems exhibiting both singular and convective reaction terms is discussed. An auxiliary problem, obtained by `freezing' the convection terms and `shifting' the singular ones, is…

Analysis of PDEs · Mathematics 2021-07-14 Umberto Guarnotta

The paper deals with the existence of solutions for quasilinear elliptic systems involving singular and convection terms with variable exponents. Our approach combines the sub-supersolutions method and Schauder's fixed point theorem.

Analysis of PDEs · Mathematics 2022-07-07 Abdelkrim Moussaoui , Dany Nabab , Jean Velin

In this paper we consider quasilinear elliptic equations with double phase phenomena and a reaction term depending on the gradient. Under quite general assumptions on the convection term we prove the existence of a weak solution by applying…

Analysis of PDEs · Mathematics 2019-10-28 Leszek Gasinski , Patrick Winkert

In this paper we establish existence, nonexitence and regularity of positive solutions for a class of singular quasilinear elliptic systems subject to (super-) homogeneous condition. The approach is based on sub-supersolution methods for…

Analysis of PDEs · Mathematics 2019-06-03 Hana Didi , Brahim Khodja , Abdelkrim Moussaoui

The existence of a positive entire weak solution to a singular quasi-linear elliptic system with convection terms is established, chiefly through perturbation techniques, fixed point arguments, and a priori estimates. Some regularity…

Analysis of PDEs · Mathematics 2021-02-22 Umberto Guarnotta , Salvatore A. Marano , Abdelkrim Moussaoui

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

In this paper we establish the existence of two positive solutions for a class of quasilinear singular elliptic systems. The main tools are sub and supersolution method and Leray-Schauder Topological degree.

Analysis of PDEs · Mathematics 2016-06-28 Claudianor O. Alves , Abdelkrim Moussaoui

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

We prove the existence and uniqueness of weak solutions to a class of anisotropic elliptic equations with coefficients of convection term belonging to some suitable Marcinkiewicz spaces. Some useful a priori estimates and regularity results…

Analysis of PDEs · Mathematics 2023-07-27 Giuseppina di Blasio , Filomena Feo , Gabriella Zecca

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

We show the existence of solution for some classes of nonlocal problems. Our proof combines the presence of sub and supersolution with the pseudomonotone operators theory.

Analysis of PDEs · Mathematics 2014-02-11 Claudianor O. Alves , Dragos-Patru Covei

In this paper we study quasilinear elliptic systems driven by so-called double phase operators and nonlinear right-hand sides depending on the gradients of the solutions. Based on the surjectivity result for pseudomonotone operators we…

Analysis of PDEs · Mathematics 2020-07-22 Greta Marino , Patrick Winkert

We establish several results related to existence, nonexistence or bifurcation of positive solutions for a Dirichlet boundary value problem with in a smooth bounded domain. The main feature of this paper consists in the presence of a…

Analysis of PDEs · Mathematics 2015-06-26 Marius Ghergu , Vicentiu Radulescu

In this paper we consider the existence of positive solutions for a singular elliptic problem involving an asymtotically linear nonlinearity and depending on one positive parameter. Using variational methods, together with comparison…

Analysis of PDEs · Mathematics 2020-11-18 Ricardo Lima Alves

In this paper, we study the existence of a solution for a class of Dirichlet problems with a singularity and a convection term. Precisely, we consider the existence of a positive solution to the Dirichlet problem $$-\Delta_p u =…

Analysis of PDEs · Mathematics 2024-09-20 Anderson L. A. de Araujo , Hamilton P. Bueno , Kamila F. L. Madalena

In this paper, we consider the existence and uniqueness of weak solutions of a nonlinear elliptic equation with a variable exponent, a monotonic type operator and a convection term. With the topological degree theory, we prove the existence…

Analysis of PDEs · Mathematics 2021-05-19 Mustapha Ait Hammou

In the present paper we study the existence of solutions for some classes of singular systems involving the p(x) and q(x) Laplacian operators. The approach is based on bifurcation theory and subsupersolution method for systems of…

Analysis of PDEs · Mathematics 2017-02-22 Claudianor O. Alves , Abdelkrim Moussaoui , Leandro da S. Tavares

This paper deals with existence of positive solutions for a class of quasilinear elliptic systems involving the $\Phi$-Laplacian operator and convex-concave singular terms. Our approach is based on the generalized Galerkin Method along with…

Analysis of PDEs · Mathematics 2016-10-11 Carlos Alberto Santos , Marcos L. Carvalho , Jose V. Goncalves

In this paper we study the existence of positive smooth solutions for a class of singular (p(x),q(x))- Laplacian systems by using sub and supersolution methods.

Analysis of PDEs · Mathematics 2016-08-02 Claudianor O. Alves , Abdelkrim Moussaoui
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