dorsal/arxiv
View SchemaClassification of single-bubble blow-up solutions for Calogero--Moser derivative nonlinear Schr\"odinger equation
| Authors | Uihyeon Jeong, Kihyun Kim, Taegyu Kim, Soonsik Kwon |
|---|---|
| Categories | |
| ArXiv ID | 2601.07410vv1 |
| URL | https://arxiv.org/abs/2601.07410 |
| License | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Abstract
We study the Calogero--Moser derivative nonlinear Schr\"odinger equation (CM-DNLS), a mass-critical and completely integrable dispersive model. Recent works established finite-time blow-up constructions and soliton resolution, describing the asymptotic behaviors of blow-up solutions. In this paper, we go beyond soliton resolution and provide a sharp classification of finite-time blow-up dynamics in the \textit{single-bubble} regime. Assuming that a solution blows up at time $0<T<\infty$ with a single-soliton profile, we determine all possible blow-up rates. For initial data in $H^{2L+1}(\mathbb{R})$ with $L\ge1$, we prove a dichotomy: either the solution lies in a \emph{quantized regime}, where the scaling parameter satisfies \[ \lambda(t)\sim (T-t)^{2k},\qquad 1\le k\le L, \] with convergent phase and translation parameters, or it lies in an \emph{exotic regime}, where the blow-up rate satisfies $\lambda(t)\lesssim (T-t)^{2L+\frac 32}$. To our knowledge, this is the first classification result for quantized blow-up dynamics in the class of dispersive models. We provide a framework for identifying the quantized blow-up rates in classification problems. The proof relies on a modulation analysis combined with the hierarchy of conservation laws provided by the complete integrability of (CM-DNLS). However, it does not use \emph{more refined integrability-based techniques}, such as the inverse scattering method, the method of commuting flows, or the explicit formula. As a result, our analysis applies beyond the chiral solutions.
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"abstract": "We study the Calogero--Moser derivative nonlinear Schr\\\"odinger equation (CM-DNLS), a mass-critical and completely integrable dispersive model. Recent works established finite-time blow-up constructions and soliton resolution, describing the asymptotic behaviors of blow-up solutions.\n In this paper, we go beyond soliton resolution and provide a sharp classification of finite-time blow-up dynamics in the \\textit{single-bubble} regime. Assuming that a solution blows up at time $0\u003cT\u003c\\infty$ with a single-soliton profile, we determine all possible blow-up rates. For initial data in $H^{2L+1}(\\mathbb{R})$ with $L\\ge1$, we prove a dichotomy: either the solution lies in a \\emph{quantized regime}, where the scaling parameter satisfies \\[\n \\lambda(t)\\sim (T-t)^{2k},\\qquad 1\\le k\\le L, \\] with convergent phase and translation parameters, or it lies in an \\emph{exotic regime}, where the blow-up rate satisfies $\\lambda(t)\\lesssim (T-t)^{2L+\\frac 32}$. To our knowledge, this is the first classification result for quantized blow-up dynamics in the class of dispersive models. We provide a framework for identifying the quantized blow-up rates in classification problems.\n The proof relies on a modulation analysis combined with the hierarchy of conservation laws provided by the complete integrability of (CM-DNLS). However, it does not use \\emph{more refined integrability-based techniques}, such as the inverse scattering method, the method of commuting flows, or the explicit formula. As a result, our analysis applies beyond the chiral solutions.",
"arxiv_id": "2601.07410",
"authors": [
"Uihyeon Jeong",
"Kihyun Kim",
"Taegyu Kim",
"Soonsik Kwon"
],
"categories": [
"math.AP"
],
"license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
"title": "Classification of single-bubble blow-up solutions for Calogero--Moser derivative nonlinear Schr\\\"odinger equation",
"url": "https://arxiv.org/abs/2601.07410",
"version": "v1"
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