Results 41 to 50 of about 1,722 (89)

Local and global well-posedness of the Maxwell-Bloch system of equations with inhomogeneous broadening

open access: yesAdvances in Nonlinear Analysis
The Maxwell-Bloch system of equations with inhomogeneous broadening is studied, and the local and global well-posedness of the corresponding initial-boundary value problem is established by taking advantage of the integrability of the system and making ...
Biondini Gino   +2 more
doaj   +1 more source

Local minimizers for the NLS equation with localized nonlinearity on noncompact metric graphs

open access: yesOpen Mathematics
We investigate the existence of local minimizers for the nonlinear Schrödinger (NLS) equation with localized nonlinearity on noncompact metric graphs. In the absence of ground states, we prove that normalized local minimizers of the NLS equation do exist
Li Xiaoguang
doaj   +1 more source

On extremisers to a bilinear Strichartz inequality [PDF]

open access: yes, 2015
In this note, we show that a pair of Gaussian functions are extremisers to a bilinear Strichartz inequality, and unique up to the symmetry group of the inequality.Comment: 6 pages. The constant in defining the inverse Fourier transform is corrected;the
Shao, Shuanglin
core  

A short note on simplified pseudospectral methods for computing ground state and dynamics of spherically symmetric Schrodinger--Poisson--Slater system

open access: yes, 2011
In a recent paper we proposed and compared various approaches to compute the ground state and dynamics of the Schr\"{o}dinger--Poisson--Slater (SPS) system for general external potential and initial condition, concluding that the methods based on sine ...
Dong, Xuanchun
core   +1 more source

A note on Berestycki-Cazenave's classical instability result for nonlinear Schr\"odinger equations

open access: yes, 2007
In this note we give an alternative, shorter proof of the classical result of Berestycki and Cazenave on the instability by blow-up for the standing waves of some nonlinear Schr\"odinger ...
Coz, Stefan Le
core   +2 more sources

Global well-posedness for the Gross-Pitaevskii equation with an angular momentum rotational term

open access: yes, 2008
In this paper, we establish the global well-posedness of the Cauchy problem for the Gross-Pitaevskii equation with an rotational angular momentum term in the space $\Real^2$.Comment: 10 ...
Avron   +16 more
core   +1 more source

Existence of a Positive Solution to a Nonlinear Scalar Field Equation with Zero Mass at Infinity

open access: yesAdvanced Nonlinear Studies, 2018
We establish the existence of a positive solution to the ...
Clapp Mónica, Maia Liliane A.
doaj   +1 more source

Ground state solutions for magnetic Schrödinger equations with polynomial growth

open access: yesAdvances in Nonlinear Analysis
In this article, we investigate the following nonlinear magnetic Schrödinger equations: (−i∇+A(x))2u+V(x)u=f1(x,∣v∣2)v,(−i∇+A(x))2v+V(x)v=f2(x,∣u∣2)u,\left\{\begin{array}{l}{\left(-i\nabla +A\left(x))}^{2}u+V\left(x)u={f}_{1}\left(x,{| v| }^{2})v ...
Wu Yan, Chen Peng
doaj   +1 more source

LONG TIME BEHAVIOR OF THE SOLUTIONS OF NLW ON THE $d$-DIMENSIONAL TORUS

open access: yesForum of Mathematics, Sigma, 2020
We consider the nonlinear wave equation (NLW) on the $d$-dimensional torus $\mathbb{T}^{d}$ with a smooth nonlinearity of order at least 2 at the origin. We prove that, for almost any mass, small and smooth solutions of high Sobolev indices are stable up
JOACKIM BERNIER   +2 more
doaj   +1 more source

Low regularity conservation laws for Fokas-Lenells equation and Camassa-Holm equation

open access: yesAdvances in Nonlinear Analysis
In this article, we mainly prove low regularity conservation laws for the Fokas-Lenells equation in Besov spaces with small initial data both on the line and on the circle. We develop a new technique in Fourier analysis and complex analysis to obtain the
Shan Minjie   +3 more
doaj   +1 more source

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