Results 41 to 50 of about 1,711 (146)

Existence of Nontrivial Solutions and High Energy Solutions for a Class of Quasilinear Schrödinger Equations via the Dual-Perturbation Method

open access: yesAbstract and Applied Analysis, 2013
We study the quasilinear Schrödinger equation of the form , . Under appropriate assumptions on and , existence results of nontrivial solutions and high energy solutions are obtained by the dual-perturbation method.
Yu Chen, Xian Wu
doaj   +1 more source

Minimal thinness with respect to the Schrödinger operator and its applications on singular Schrödinger-type boundary value problems

open access: yesBoundary Value Problems, 2019
The application of the new criteria for minimally thin sets with respect to the Schrödinger operator to an approximate solution of singular Schrödinger-type boundary value problems are discussed in this study.
Bo Meng
doaj   +1 more source

New results on the existence of ground state solutions for generalized quasilinear Schrödinger equations coupled with the Chern–Simons gauge theory

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
In this paper, we study the following quasilinear Schrödinger equation \begin{equation*} \begin{split} -\Delta u&+V(x)u-\kappa u\Delta(u^2)+\mu\frac{h^2(|x|)}{|x|^2}(1+\kappa u^2)u\\ &+\mu\left(\int_{|x|}^{+\infty}\frac{h(s)}{s}(2+\kappa u^2(s))u^2(s ...
Yingying Xiao, Chuanxi Zhu
doaj   +1 more source

The mirror mode: A "superconducting'' space plasma analogue

open access: yes, 2018
We examine the physics of the magnetic mirror mode in its final state of saturation, the thermodynamic equilibrium, to demonstrate that the mirror mode is the analogue of a superconducting effect in a classical anisotropic-pressure space plasma.
Baumjohann, W., Treumann, R. A.
core   +2 more sources

Macroscopic dynamics of incoherent soliton ensembles: soliton-gas kinetics and direct numerical modeling [PDF]

open access: yes, 2016
We undertake a detailed comparison of the results of direct numerical simulations of the integrable soliton gas dynamics with the analytical predictions inferred from the exact solutions of the relevant kinetic equation for solitons.
Carbone, Francesco   +2 more
core   +6 more sources

Ground states of Nehari-Pohožaev type for a quasilinear Schrödinger system with superlinear reaction

open access: yesElectronic Research Archive, 2023
This article is devoted to study the following quasilinear Schrödinger system with super-quadratic condition: $ \begin{equation*} \left\{\begin{matrix} -\Delta u+V_{1}(x)u-\Delta (u^{2})u = h(u,v),\ x\in \mathbb{R}^{N},\\ -\Delta v+V_{2}(x)v-\Delta (v^
Yixuan Wang, Xianjiu Huang
doaj   +1 more source

Standing waves with a critical frequency for nonlinear Choquard equations

open access: yes, 2016
In this paper, we study the nonlocal Choquard equation $$ -\varepsilon^2 \Delta u_\varepsilon + V u_\varepsilon= (I_\alpha * |u_\varepsilon|^p)|u_\varepsilon|^{p-2}u_\varepsilon $$ where $N\geq 1$, $I_\alpha$ is the Riesz potential of order $\alpha \in ...
Van Schaftingen, Jean, Xia, Jiankang
core   +1 more source

Multiple nonsymmetric nodal solutions for quasilinear Schrödinger system

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
In this paper, we consider the quasilinear Schrödinger system in $\mathbb R^{N}$ ($N\geq3$): \begin{equation*} \begin{cases} -\Delta u+ A(x)u-\frac{1}{2}\Delta(u^{2})u=\frac{2\alpha }{\alpha+\beta}|u|^{\alpha-2}u|v|^{\beta},\\ -\Delta v+ Bv-\frac{1}{2}\
Jianqing Chen, Qian Zhang
doaj   +1 more source

Singularly perturbed elliptic problems with nonautonomous asymptotically linear nonlinearities

open access: yes, 2014
We consider a class of singularly perturbed elliptic problems with nonautonomous asymptotically linear nonlinearities. The dependence on the spatial coordinates comes from the presence of a potential and of a function representing a saturation effect. We
Ambrosetti   +31 more
core   +1 more source

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