Mathematics > Analysis of PDEs
[Submitted on 27 Apr 2018 (v1), last revised 22 Oct 2018 (this version, v2)]
Title:Unconditional Uniqueness Results for the Nonlinear Schrödinger Equation
View PDFAbstract:We study the problem of unconditional uniqueness of solutions to the cubic nonlinear Schrödinger equation. We introduce a new strategy to approach this problem on bounded domains, in particular on rectangular tori.
It is a known fact that solutions to the cubic NLS give rise to solutions of the Gross-Pitaevskii hierarchy, which is an infinite-dimensional system of linear equations. By using the uniqueness analysis of the Gross-Pitaevskii hierarchy, we obtain new unconditional uniqueness results for the cubic NLS on rectangular tori, which cover the full scaling-subcritical regime in high dimensions. In fact, we prove a more general result which is conditional on the domain.
In addition, we observe that well-posedness of the cubic NLS in Fourier-Lebesgue spaces implies unconditional uniqueness.
Submission history
From: Sebastian Herr [view email][v1] Fri, 27 Apr 2018 18:05:02 UTC (29 KB)
[v2] Mon, 22 Oct 2018 11:46:53 UTC (29 KB)
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