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arXiv 1006.4909math.AP
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具有Delta势和偶数初值的NLS方程解的长时间渐近性

Long-Time Asymptotics for Solutions of the NLS Equation with a Delta Potential and Even Initial Data

Percy Deift, Jungwoon Park

摘要:

本文研究了具有δ势和偶初值的一维聚焦非线性薛定谔方程。该问题等价于在原点具有Robin边界条件的半直线上的NLS初边值问题的解。我们遵循Bikbaev和Tarasov的方法,该方法利用Bäcklund变换将半线上的解扩展到整条线上的NLS方程的解。利用Deift和Zhou提出的求解黎曼-希尔伯特问题的非线性最速下降方法,研究了该方程定常1-孤子解在扰动下的渐近稳定性.我们的工作加强,并扩展了以前的工作,由霍尔默和Zworski的问题。

英文摘要:

We consider the one-dimensional focusing nonlinear Schrödinger equation (NLS) with a delta potential and even initial data. The problem is equivalent to the solution of the initial/boundary problem for NLS on a half-line with Robin boundary conditions at the origin. We follow the method of Bikbaev and Tarasov which utilizes a Bäcklund transformation to extend the solution on the half-line to a solution of the NLS equation on the whole line. We study the asymptotic stability of the stationary 1-soliton solution of the equation under perturbation by applying the nonlinear steepest-descent method for Riemann-Hilbert problems introduced by Deift and Zhou. Our work strengthens, and extends, earlier work on the problem by Holmer and Zworski.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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