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Mathematics > Analysis of PDEs

Title: The asymptotic stability on the line of ground states of the pure power NLS with $0<|p-3|\ll 1$

Abstract: For exponents $p$ satisfying $0<|p-3|\ll 1$ and only in the context of spatially even solutions we prove that the ground states of the nonlinear Schr\"odinger equation (NLS) with pure power nonlinearity of exponent $p$ in the line are asymptotically stable. The proof is similar to a related result of Martel, preprint arXiv:2312.11016, for a cubic quintic NLS. Here we modify the second part of Martel's argument, replacing the second virial inequality for a transformed problem with a smoothing estimate on the initial problem, appropriately tamed by multiplying the initial variables and equations by a cutoff.
Subjects: Analysis of PDEs (math.AP)
MSC classes: 35Q55
Cite as: arXiv:2404.14287 [math.AP]
  (or arXiv:2404.14287v1 [math.AP] for this version)

Submission history

From: Scipio Cuccagna [view email]
[v1] Mon, 22 Apr 2024 15:39:25 GMT (50kb)

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