Results 21 to 30 of about 472 (105)

Existence of positive ground states for some nonlinear Schrödinger systems

open access: yesBoundary Value Problems, 2013
We prove the existence of positive ground states for the nonlinear Schrödinger system {−Δu+(1+a(x))u=Fu(u,v)+λv,−Δv+(1+b(x))v=Fv(u,v)+λu, where a, b are periodic or asymptotically periodic and F satisfies some superlinear conditions in (u,v). The proof
Hui Zhang, Junxiang Xu, Fubao Zhang
semanticscholar   +2 more sources

Multiple solutions for p-Laplacian systems with critical homogeneous nonlinearity

open access: yesBoundary Value Problems, 2012
In this article, we deal with existence and multiplicity of solutions to the p-Laplacian system of the type -Δpu=1p*∂F(x,u,v)∂u+λuq-2u,x∈Ω,-Δpv=1p*∂F(x,u,v)∂v+δvq-2v,x∈Ω,u=v=0,x∈∂Ω, where Ω ⊂ ℝNis a bounded domain with ...
Dengfeng Lü
semanticscholar   +2 more sources

The Weak Galerkin Method for Elliptic Eigenvalue Problems

open access: yesCommunications in Computational Physics, 2019
This article is devoted to studying the application of the weak Galerkin (WG) finite element method to the elliptic eigenvalue problem with an emphasis on obtaining lower bounds.
Q. Zhai
semanticscholar   +1 more source

Multiplicity result for a critical elliptic system with concave-convex nonlinearities

open access: yesBoundary Value Problems, 2013
We study the existence of multiple solutions of a strongly indefinite elliptic system involving the critical Sobolev exponent and concave-convex nonlinearities.
C. J. Batkam, F. Colin
semanticscholar   +2 more sources

Multiplicity and concentration results for magnetic relativistic Schrödinger equations

open access: yesAdvances in Nonlinear Analysis, 2019
In this paper, we consider the following magnetic pseudo-relativistic Schrödinger ...
Xia Aliang
doaj   +1 more source

Multiple positive solutions for quasilinear elliptic problems with sign‐changing nonlinearities

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 12, Page 1047-1055, 2004., 2004
Using variational arguments, we prove some nonexistence and multiplicity results for positive solutions of a system of p‐Laplace equations of gradient form. Then we study a p‐Laplace‐type problem with nonlinear boundary conditions.
Julián Fernández Bonder
wiley   +1 more source

Monotonicity formulas for coupled elliptic gradient systems with applications

open access: yesAdvances in Nonlinear Analysis, 2019
Consider the following coupled elliptic system of ...
Fazly Mostafa, Shahgholian Henrik
doaj   +1 more source

A global compactness result with applications to a Hardy-Sobolev critical elliptic system involving coupled perturbation terms

open access: yesAdvances in Nonlinear Analysis, 2022
In this article, we study a Hardy-Sobolev critical elliptic system involving coupled perturbation terms: (0.1)−Δu+V1(x)u=η1η1+η2∣u∣η1−2u∣v∣η2∣x′∣+αα+βQ(x)∣u∣α−2u∣v∣β,−Δv+V2(x)v=η2η1+η2∣v∣η2−2v∣u∣η1∣x′∣+βα+βQ(x)∣v∣β−2v∣u∣α,\left\{\begin{array}{c}-\Delta u+
Wang Lu Shun, Yang Tao, Yang Xiao Long
doaj   +1 more source

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

open access: yesJournal of Applied Mathematics, Volume 2003, Issue 5, Page 227-241, 2003., 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. (1995), we can find positive solutions.
Mario Zuluaga
wiley   +1 more source

Critical elliptic systems involving multiple strongly–coupled Hardy–type terms

open access: yesAdvances in Nonlinear Analysis, 2019
In this paper, we study the radially–symmetric and strictly–decreasing solutions to a system of critical elliptic equations in RN, which involves multiple critical nonlinearities and strongly–coupled Hardy– type terms.
Kang Dongsheng, Liu Mengru, Xu Liangshun
doaj   +1 more source

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