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arXiv 2109.07098math.AP
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非线性薛定谔方程中双涡旋行波的唯一性结果

A uniqueness result for the two vortex travelling wave in the Nonlinear Schrodinger equation

David Chiron, Eliot Pacherie

AI总结:

本文证明了2维非线性薛定谔方程在大动量极限下双涡旋行波极小值子的唯一性,从而确立了该行波的轨道稳定性。

摘要:

对于2维非线性薛定谔方程,Bethuel-Gravejat-Saut已证明了在固定动量下能量全局极小值子的存在性。该极小值子是方程的行波。对于大动量,传播速度很小,且极小值子的行为类似于两个充分分离的涡旋。在该极限下,我们证明了该极小值子的唯一性(至多相差问题的不变性),从而证明了该行波的轨道稳定性。本文是前两篇文章的后续,在之前的文章中我们构造并研究了方程的一个特定行波。我们在包含所有可能的能量极小值子的函数类中,证明了该行波的唯一性结果。

英文摘要:

For the Nonlinear Schrodinger equation in dimension 2, the existence of a global minimizer of the energy at fixed momentum has been established by Bethuel-Gravejat-Saut. This minimizer is a travelling wave for the Nonlinear Schrodinger equation. For large momentums, the propagation speed is small and the minimizer behaves like two well separated vortices. In that limit, we show the uniqueness of this minimizer, up to the invariances of the problem, hence proving the orbital stability of this travelling wave. This work is a follow up to two previous papers, where we constructed and studied a particular travelling wave of the equation. We show a uniqueness result on this travelling wave in a class of functions that contains in particular all possible minimizers of the energy.

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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