Growth of Fourier--Lebesgue norms for mKdV

Fuente: arXiv
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Main Authors: Haque, Saikatul, Killip, Rowan, Visan, Monica, Zhang, Yunfeng
Format: Preprint
Published: 2025
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author Haque, Saikatul
Killip, Rowan
Visan, Monica
Zhang, Yunfeng
author_facet Haque, Saikatul
Killip, Rowan
Visan, Monica
Zhang, Yunfeng
contents We demonstrate inflation of Fourier--Lebesgue norms for solutions to the focusing modified Korteweg--de Vries equation posed on the real line. For $p\neq 2$ and all $s\in \mathbb{R}$, we construct a sequence of solutions $u_n$ whose initial data $u_n(0)$ converges to zero in the Fourier--Lebesgue spaces $\mathcal F L^p_s(\mathbb{R})$, but whose evolutions at later times $t_n$ diverge to infinity.
format Preprint
id arxiv_https___arxiv_org_abs_2511_17471
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Growth of Fourier--Lebesgue norms for mKdV
Haque, Saikatul
Killip, Rowan
Visan, Monica
Zhang, Yunfeng
Analysis of PDEs
We demonstrate inflation of Fourier--Lebesgue norms for solutions to the focusing modified Korteweg--de Vries equation posed on the real line. For $p\neq 2$ and all $s\in \mathbb{R}$, we construct a sequence of solutions $u_n$ whose initial data $u_n(0)$ converges to zero in the Fourier--Lebesgue spaces $\mathcal F L^p_s(\mathbb{R})$, but whose evolutions at later times $t_n$ diverge to infinity.
title Growth of Fourier--Lebesgue norms for mKdV
topic Analysis of PDEs
url https://arxiv.org/abs/2511.17471