Large Time Behavior of the Klein-Gordon-Schrödinger system

Fuente: arXiv
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Autore principale: You, Chanjin
Natura: Preprint
Pubblicazione: 2025
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author You, Chanjin
author_facet You, Chanjin
contents We establish the global existence and scattering for small and localized solutions of the Klein-Gordon-Schrödinger system in three dimensions. The system consists of coupled semilinear Schrödinger and Klein-Gordon equations with quadratic nonlinearities. This model is motivated by the study of plasma oscillations arising from the Hartree equation near a translation-invariant equilibrium with the Coulomb potential. Our proof relies on the space-time resonance method. The main difficulty comes from the two dimensional space-time resonant set and the absence of null form structure.
format Preprint
id arxiv_https___arxiv_org_abs_2506_09863
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Large Time Behavior of the Klein-Gordon-Schrödinger system
You, Chanjin
Analysis of PDEs
Mathematical Physics
We establish the global existence and scattering for small and localized solutions of the Klein-Gordon-Schrödinger system in three dimensions. The system consists of coupled semilinear Schrödinger and Klein-Gordon equations with quadratic nonlinearities. This model is motivated by the study of plasma oscillations arising from the Hartree equation near a translation-invariant equilibrium with the Coulomb potential. Our proof relies on the space-time resonance method. The main difficulty comes from the two dimensional space-time resonant set and the absence of null form structure.
title Large Time Behavior of the Klein-Gordon-Schrödinger system
topic Analysis of PDEs
Mathematical Physics
url https://arxiv.org/abs/2506.09863