Stability of Hardy-Sobolev Inequality

Fuente: arXiv
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Auteur principal: Chakraborty, Souptik
Format: Preprint
Publié: 2024
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author Chakraborty, Souptik
author_facet Chakraborty, Souptik
contents Given $N\geq 3,$ we consider the critical Hardy-Sobolev equation $-Δu-\fracγ{|x|^2}u=\frac{|u|^{2^*(s)-2}u}{|x|^s}$ in $\mathbb{R}^N\setminus \{0\},$ where $0<γ<γ_{H}:=\left(\frac{N-2}{2}\right)^2,\,s\in (0,2)$ and $2^*(s)=\frac{2(N-s)}{(N-2)}.$ We prove a stability estimate for the corresponding Hardy-Sobolev inequality in the spirit of Bianchi-Egnell (1991). Also, we obtain a Struwe-type decomposition (1984) for the corresponding Euler-Lagrange equation. Finally, we prove a quantitative bound for one bubble, namely $\operatorname{dist}(u,\mathcal{M})\lesssim Γ(u)$ in the spirit of Ciraolo-Figalli-Maggi (2017).
format Preprint
id arxiv_https___arxiv_org_abs_2403_06594
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Stability of Hardy-Sobolev Inequality
Chakraborty, Souptik
Analysis of PDEs
35A23, 35B33, 35B35, 35J20, 35J61 (Primary) 26D10 (Secondary)
Given $N\geq 3,$ we consider the critical Hardy-Sobolev equation $-Δu-\fracγ{|x|^2}u=\frac{|u|^{2^*(s)-2}u}{|x|^s}$ in $\mathbb{R}^N\setminus \{0\},$ where $0<γ<γ_{H}:=\left(\frac{N-2}{2}\right)^2,\,s\in (0,2)$ and $2^*(s)=\frac{2(N-s)}{(N-2)}.$ We prove a stability estimate for the corresponding Hardy-Sobolev inequality in the spirit of Bianchi-Egnell (1991). Also, we obtain a Struwe-type decomposition (1984) for the corresponding Euler-Lagrange equation. Finally, we prove a quantitative bound for one bubble, namely $\operatorname{dist}(u,\mathcal{M})\lesssim Γ(u)$ in the spirit of Ciraolo-Figalli-Maggi (2017).
title Stability of Hardy-Sobolev Inequality
topic Analysis of PDEs
35A23, 35B33, 35B35, 35J20, 35J61 (Primary) 26D10 (Secondary)
url https://arxiv.org/abs/2403.06594