Nontrivial weak solutions of the stationary KdV equation in sharp $L^p$ spaces

Fuente: arXiv
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Main Author: Pathak, Mandon
Format: Preprint
Published: 2026
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author Pathak, Mandon
author_facet Pathak, Mandon
contents In this paper we utilize a convex integration scheme to construct non-trivial solutions to the stationary KdV equation which lie in $L^p(\mathbb{T})$, $p < 2$. In addition, we demonstrate this result is sharp in the sense that if $u \in L^2(\mathbb{T})$ is a weak solution then $u \in C^\infty(\mathbb{T})$.
format Preprint
id arxiv_https___arxiv_org_abs_2603_12555
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Nontrivial weak solutions of the stationary KdV equation in sharp $L^p$ spaces
Pathak, Mandon
Analysis of PDEs
Classical Analysis and ODEs
In this paper we utilize a convex integration scheme to construct non-trivial solutions to the stationary KdV equation which lie in $L^p(\mathbb{T})$, $p < 2$. In addition, we demonstrate this result is sharp in the sense that if $u \in L^2(\mathbb{T})$ is a weak solution then $u \in C^\infty(\mathbb{T})$.
title Nontrivial weak solutions of the stationary KdV equation in sharp $L^p$ spaces
topic Analysis of PDEs
Classical Analysis and ODEs
url https://arxiv.org/abs/2603.12555