Scattering for the nonlinear Schrödinger equation with concentrated nonlinearity

Fuente: arXiv
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Main Authors: Harrop-Griffiths, Benjamin, Killip, Rowan, Visan, Monica
Format: Preprint
Published: 2025
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author Harrop-Griffiths, Benjamin
Killip, Rowan
Visan, Monica
author_facet Harrop-Griffiths, Benjamin
Killip, Rowan
Visan, Monica
contents We consider the cubic defocusing nonlinear Schrödinger equation in one dimension with the nonlinearity concentrated at a single point. We prove global well-posedness in the scaling-critical space $L^2(\mathbb{R})$ and scattering for all such solutions. Moreover, we demonstrate that the same phenomenology holds whenever nonlinear effects are sufficiently concentrated in space.
format Preprint
id arxiv_https___arxiv_org_abs_2507_14571
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Scattering for the nonlinear Schrödinger equation with concentrated nonlinearity
Harrop-Griffiths, Benjamin
Killip, Rowan
Visan, Monica
Analysis of PDEs
We consider the cubic defocusing nonlinear Schrödinger equation in one dimension with the nonlinearity concentrated at a single point. We prove global well-posedness in the scaling-critical space $L^2(\mathbb{R})$ and scattering for all such solutions. Moreover, we demonstrate that the same phenomenology holds whenever nonlinear effects are sufficiently concentrated in space.
title Scattering for the nonlinear Schrödinger equation with concentrated nonlinearity
topic Analysis of PDEs
url https://arxiv.org/abs/2507.14571