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On the existence of positive solutions for a nonhomogeneous elliptic system
(European Mathematical SocZurichSuíça, 2009)
Stabilization of a light bullet in a layered Kerr medium with sign-changing nonlinearity
(Amer Physical Soc, 2004-09-01)
Using the numerical solution of the nonlinear Schrodinger equation and a variational method, it is shown that (3+1)-dimensional spatiotemporal optical solitons, known as light bullets, can be stabilized in a layered Kerr ...
Multiplicity of solutions for a fourth-order quasilinear nonhomogeneous equation
(Academic Press Inc Elsevier ScienceSan DiegoEUA, 2008)
Sign Changing Tower of Bubbles for an Elliptic Problem at the Critical Exponent in Pierced Non-Symmetric Domains
(TAYLOR & FRANCIS INC, 2010)
We consider the problem [image omitted] in epsilon, u=0 on epsilon, where epsilon: =\{B(a, epsilon) B(b, epsilon)}, with a bounded smooth domain in N, N epsilon 3, ab two points in , and epsilon is a positive small parameter. ...
On the uniqueness of sign changing bound state solutions of a semilinear equation
(GAUTHIER-VILLARS/EDITIONS ELSEVIER, 2011)
We establish the uniqueness of the higher radial bound state solutions of
A sign-changing solution for an asymptotically linear Schrödinger equation
(Cambridge University PressNew York, 2015-10)
The aim of this paper is to present a sign-changing solution for a class of radially symmetric asymptotically linear Schrödinger equations. The proof is variational and the Ekeland variational principle is employed as well ...
Multiple positive solutions for nonlinear critical fractional elliptic equations involving sign-changing weight functions
(2016)
In this article, we prove the existence and multiplicity of positive solutions for the following fractional elliptic equation with sign-changing weight functions: {(-Delta)(alpha)u = alpha(lambda)(x)vertical bar u vertical ...
A local symmetry result for linear elliptic problems with solutions changing sign
(Elsevier Masson, 2011-04-02)
We prove that the only domain Ω such that there exists a solution to the following problem in Ω, on ∂Ω, and , for a given constant c, is the unit ball , if we assume that Ω lies in an appropriate class of Lipschitz domains.
Multiplicidade de Soluções Para uma Classe de Problemas Quase lineares Críticos em rn Envolvendo Função Peso com Mudança de Sinal
(Universidade Federal de Santa Maria, 2014)