Existence of weak solutions and regular solutions to the incompressible Schrödinger flow

Fuente: arXiv
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Main Authors: Chen, Bo, Wang, Guangwu, Wang, Youde
Format: Preprint
Published: 2026
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author Chen, Bo
Wang, Guangwu
Wang, Youde
author_facet Chen, Bo
Wang, Guangwu
Wang, Youde
contents In this paper, we are concerned with the initial-Neumann boundary value problem of the Schrödinger flow for maps from a smooth bounded domain in an Euclidean space into $\mathbb{S}^2$. By adopting a novel method due to B. Chen and Y.D. Wang, we prove the existence of short-time regular solutions to this flow within the framework of Sobolev spaces when the underlying space is a smooth bounded domain in $\mathbb{R}^m$ with $m\leq 3$. Moreover, we also utilize the ``complex structure approximation method" to establish the global existence of weak solutions to the incompressible Schrödinger flow in a smooth bounded domain of $\mathbb{R}^m$ (where $m\geq 1$).
format Preprint
id arxiv_https___arxiv_org_abs_2604_07696
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Existence of weak solutions and regular solutions to the incompressible Schrödinger flow
Chen, Bo
Wang, Guangwu
Wang, Youde
Analysis of PDEs
In this paper, we are concerned with the initial-Neumann boundary value problem of the Schrödinger flow for maps from a smooth bounded domain in an Euclidean space into $\mathbb{S}^2$. By adopting a novel method due to B. Chen and Y.D. Wang, we prove the existence of short-time regular solutions to this flow within the framework of Sobolev spaces when the underlying space is a smooth bounded domain in $\mathbb{R}^m$ with $m\leq 3$. Moreover, we also utilize the ``complex structure approximation method" to establish the global existence of weak solutions to the incompressible Schrödinger flow in a smooth bounded domain of $\mathbb{R}^m$ (where $m\geq 1$).
title Existence of weak solutions and regular solutions to the incompressible Schrödinger flow
topic Analysis of PDEs
url https://arxiv.org/abs/2604.07696