Results 1 to 10 of about 420 (68)

Existence of non-negative solutions for semilinear elliptic systems via variational methods

open access: yesNonlinear Analysis, 2012
In this paper we consider a semilinear elliptic system with nonlinearities, indefinite weight functions and critical growth terms in bounded domains. The existence result of nontrivial nonnegative solutions is obtained by variational methods.
Somayeh Khademloo, Shapur Heidarkhani
doaj   +3 more sources

A variational method for solving quasilinear elliptic systems involving symmetric multi-polar potentials [PDF]

open access: yesDifferential Equations & Applications, 2020
Summary: In this paper, a system of quasilinear elliptic equations is investigated, which involves multiple critical Hardy-Sobolev exponents and symmetric multi-polar potentials. By employing the variational methods and analytic techniques, the relevant best constants are studied and the existence of \((\mathbb{Z}_k \times\mathbb{SO}(N-2))^2 ...
Rashidi, Ali Jabar, Shekarbaigi, Mohsen
openaire   +1 more source

Multiple solutions for a class of nonlocal quasilinear elliptic systems in Orlicz–Sobolev spaces

open access: yesBoundary Value Problems, 2021
In this paper, we study some results on the existence and multiplicity of solutions for a class of nonlocal quasilinear elliptic systems. In fact, we prove the existence of precise intervals of positive parameters such that the problem admits multiple ...
S. Heidari, A. Razani
doaj   +1 more source

Infinitely many solutions for a class of quasilinear two-point boundary value systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
The existence of infinitely many solutions for a class of Dirichlet quasilinear elliptic systems is established. The approach is based on variational methods.
Giuseppina D'Aguì   +2 more
doaj   +1 more source

A note on the variational structure of an elliptic system involving critical Sobolev exponent

open access: yesJournal of Applied Mathematics, 2003
We consider an elliptic system involving critical growth conditions. We develop a technique of variational methods for elliptic systems. Using the well-known results of maximum principle for systems developed by Fleckinger et al.
Mario Zuluaga
doaj   +1 more source

Nonlinear elliptic systems

open access: yesAnais da Academia Brasileira de Ciências, 2000
In this paper we treat the question of the existence of solutions of boundary value problems for systems of nonlinear elliptic equations of the form - deltau = f (x, u, v,Ñu,Ñv), - deltav = g(x, u, v, Ñu, Ñv), in omega, We discuss several classes of such
DJAIRO G. DEFIGUEIREDO
doaj   +1 more source

Three solutions for fractional elliptic systems involving ψ-Hilfer operator

open access: yesBoundary Value Problems
In this paper, using variational methods introduced in the previous study on fractional elliptic systems, we prove the existence of at least three weak solutions for an elliptic nonlinear system with a p-Laplacian ψ-Hilfer operator.
Rafik Guefaifia   +2 more
doaj   +1 more source

Variational Methods in the Study of Inequality Problems for Nonlinear Elliptic Systems with Lack of Compactness

open access: yesReal Analysis Exchange, 2008
We establish the existence of an entire weak solution for a class of stationary Schrodinger systems with subcritical discontinuous nonlinearities and lower bounded potentials that blow-up at infinity. The proof relies on Chang's version of the Mountain Pass Lemma for locally Lipschitz functionals.
openaire   +2 more sources

On certain nonlinear elliptic systems with indefinite terms

open access: yesElectronic Journal of Differential Equations, 2002
We consider an elliptic quasi linear systems with indefinite term on a bounded domain. Under suitable conditions, existence and positivity results for solutions are given. Submitted April 2, 2002. Published October 2, 2002.
Ahmed Bensedik, Mohammed Bouchekif
doaj  

Existence of solutions for quasilinear elliptic systems involving critical exponents and Hardy terms

open access: yesElectronic Journal of Differential Equations, 2013
Using variational methods, including the Ljusternik-Schnirelmann theory, we prove the existence of solutions for quasilinear elliptic systems with critical Sobolev exponents and Hardy terms.
Dengfeng Lu
doaj  

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