Results 91 to 100 of about 1,192 (101)

The pseudorelativistic Hartree equation with a general nonlinearity: existence, non existence and variational identities [PDF]

open access: yesarXiv, 2012
We prove several existence and non existence results of solitary waves for a class of nonlinear pseudo-relativistic Hartree equations with general nonlinearities. We use variational methods and some new variational identities involving the half Laplacian.
arxiv  

Existence results for an elliptic DirichletI problem

open access: yesLe Matematiche, 2011
The main purpose of this paper is to present recent existence results for an elliptic eigenvalue Dirichlet problem. Precisely, our method ensures the existence of an exactly determined open interval (possibly unbounded) of positive parameters for which ...
Giuseppina D'Aguì   +1 more
doaj  

On a class of nonlocal nonlinear Schrödinger equations with potential well

open access: yesAdvances in Nonlinear Analysis, 2019
In this paper we investigate the existence, multiplicity and asymptotic behavior of positive solution for the nonlocal nonlinear Schrödinger equations. We exploiting the relationship between the Nehari manifold and eigenvalue problems to discuss how the ...
Wu Tsung-fang
doaj   +1 more source

Multiple $\mathbb{S}^{1}$-orbits for the Schrödinger-Newton system [PDF]

open access: yesarXiv, 2013
We prove existence and multiplicity of symmetric solutions for the \emph{Schr\"odinger-Newton system} in three dimensional space using equivariant Morse theory.
arxiv  

Existence of solutions for a nonlinear Choquard equation with potential vanishing at infinity

open access: yesAdvances in Nonlinear Analysis, 2016
We study the following nonlinear Choquard equation:
Alves Claudianor O.   +2 more
doaj   +1 more source

A new rearrangement inequality and its application for L^2-constraint minimizing problems [PDF]

open access: yesarXiv, 2013
We study $L^2$-constraint minimizing problems related to elliptic systems. We introduce a new rearrangement to show $H^1$-precompactness of any minimizing sequences. Some strict inequality for the new rearrangement is obtained. It is a key to exclude the dichotomy of minimizing sequences.
arxiv  

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