Orbital stability of normalized ground states for critical Choquard equation with potential

Fuente: arXiv
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Autori principali: Wang, Jun, Yin, Zhaoyang
Natura: Preprint
Pubblicazione: 2024
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author Wang, Jun
Yin, Zhaoyang
author_facet Wang, Jun
Yin, Zhaoyang
contents In this paper, we study the existence of ground state standing waves and orbital stability, of prescribed mass, for the nonlinear critical Choquard equation \begin{equation*} \left\{\begin{array}{l} i \partial_t u+Δu -V(x)u+(I_α\ast|u|^{q})|u|^{q-2}u+(I_α\ast|u|^{2_α^*})|u|^{2_α^*-2}u=0,\ (x, t) \in \mathbb{R}^d \times \mathbb{R}, \\ \left.u\right|_{t=0}=φ\in H ^1(\mathbb{R}^d), \end{array}\right. \end{equation*} where $I_α$ is a Riesz potential of order $α\in(0,d),\ d\geq3,\ 2_α^*=\frac{2d-α}{d-2}$ is the upper critical exponent due to Hardy-Littlewood-Sobolev inequality, $\frac{2d-α}{d}<q<\frac{2d-α+2}{d}$. Under appropriate potential conditions, we obtain new Strichartz estimates and construct the new space to get orbital stability of normalized ground state. To our best knowledge, this is the first orbital stability result for this model. Our method is also applicable to other mixed nonlinear equations with potential.
format Preprint
id arxiv_https___arxiv_org_abs_2412_08488
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Orbital stability of normalized ground states for critical Choquard equation with potential
Wang, Jun
Yin, Zhaoyang
Analysis of PDEs
In this paper, we study the existence of ground state standing waves and orbital stability, of prescribed mass, for the nonlinear critical Choquard equation \begin{equation*} \left\{\begin{array}{l} i \partial_t u+Δu -V(x)u+(I_α\ast|u|^{q})|u|^{q-2}u+(I_α\ast|u|^{2_α^*})|u|^{2_α^*-2}u=0,\ (x, t) \in \mathbb{R}^d \times \mathbb{R}, \\ \left.u\right|_{t=0}=φ\in H ^1(\mathbb{R}^d), \end{array}\right. \end{equation*} where $I_α$ is a Riesz potential of order $α\in(0,d),\ d\geq3,\ 2_α^*=\frac{2d-α}{d-2}$ is the upper critical exponent due to Hardy-Littlewood-Sobolev inequality, $\frac{2d-α}{d}<q<\frac{2d-α+2}{d}$. Under appropriate potential conditions, we obtain new Strichartz estimates and construct the new space to get orbital stability of normalized ground state. To our best knowledge, this is the first orbital stability result for this model. Our method is also applicable to other mixed nonlinear equations with potential.
title Orbital stability of normalized ground states for critical Choquard equation with potential
topic Analysis of PDEs
url https://arxiv.org/abs/2412.08488