A minimal mass blow-up solution on a nonlinear quantum star graph

Fuente: arXiv
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Hauptverfasser: Genoud, François, Coz, Stefan Le, Royer, Julien
Format: Preprint
Veröffentlicht: 2023
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author Genoud, François
Coz, Stefan Le
Royer, Julien
author_facet Genoud, François
Coz, Stefan Le
Royer, Julien
contents We construct a finite-time blow-up solution to the mass-critical focusing nonlinear Schrödinger equation on a metric star graph with an arbitrary number of edges. We show that all solutions are global if their mass is smaller than an explicit constant, called "minimal mass". We then construct a solution with minimal mass and arbitrary energy, which blows up in finite time at the vertex of the star graph. The blow-up profile and blow-up speed are explicitly characterized. The main novelty of the paper is the construction of the blow-up profile in time-dependent domains of singularly perturbed Laplacians.
format Preprint
id arxiv_https___arxiv_org_abs_2302_09678
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle A minimal mass blow-up solution on a nonlinear quantum star graph
Genoud, François
Coz, Stefan Le
Royer, Julien
Analysis of PDEs
35Q55, 35B44
We construct a finite-time blow-up solution to the mass-critical focusing nonlinear Schrödinger equation on a metric star graph with an arbitrary number of edges. We show that all solutions are global if their mass is smaller than an explicit constant, called "minimal mass". We then construct a solution with minimal mass and arbitrary energy, which blows up in finite time at the vertex of the star graph. The blow-up profile and blow-up speed are explicitly characterized. The main novelty of the paper is the construction of the blow-up profile in time-dependent domains of singularly perturbed Laplacians.
title A minimal mass blow-up solution on a nonlinear quantum star graph
topic Analysis of PDEs
35Q55, 35B44
url https://arxiv.org/abs/2302.09678