Uniqueness and multiple existence of positive radial solutions of the Brezis-Nirenberg Problem on annular domains in ${\Bbb S}^{3}$

Fuente: arXiv
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Autores principales: Shioji, Naoki, Tanaka, Satoshi, Watanabe, Kohtaro
Formato: Preprint
Publicado: 2024
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author Shioji, Naoki
Tanaka, Satoshi
Watanabe, Kohtaro
author_facet Shioji, Naoki
Tanaka, Satoshi
Watanabe, Kohtaro
contents The uniqueness and multiple existence of positive radial solutions to the Brezis-Nirenberg problem on a domain in the 3-dimensional unit sphere ${\mathbb S}^3$ \begin{equation*} \left\{ \begin{aligned} Δ_{{\mathbb S}^3}U -λU + U^p&=0,\, U>0 && \text{in $Ω_{θ_1,θ_2}$,}\\ U &= 0&&\text{on $\partial Ω_{θ_1,θ_2}$,} \end{aligned} \right. \end{equation*} for $-λ_{1}<λ\leq 1$ are shown, where $Δ_{{\mathbb S}^3}$ is the Laplace-Beltrami operator, $λ_{1}$ is the first eigenvalue of $-Δ_{{\mathbb S}^3}$ and $Ω_{θ_1,θ_2}$ is an annular domain in ${\mathbb S}^3$: whose great circle distance (geodesic distance) from $(0,0,0,1)$ is greater than $θ_1$ and less than $θ_2$. A solution is said to be radial if it depends only on this geodesic distance. It is proved that the number of positive radial solutions of the problem changes with respect to the exponent $p$ and parameter $λ$ when $θ_1=\varepsilon$, $θ_2=π-\varepsilon$ and $0<\varepsilon$ is sufficiently small.
format Preprint
id arxiv_https___arxiv_org_abs_2412_15680
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Uniqueness and multiple existence of positive radial solutions of the Brezis-Nirenberg Problem on annular domains in ${\Bbb S}^{3}$
Shioji, Naoki
Tanaka, Satoshi
Watanabe, Kohtaro
Analysis of PDEs
34B15, 35J65
The uniqueness and multiple existence of positive radial solutions to the Brezis-Nirenberg problem on a domain in the 3-dimensional unit sphere ${\mathbb S}^3$ \begin{equation*} \left\{ \begin{aligned} Δ_{{\mathbb S}^3}U -λU + U^p&=0,\, U>0 && \text{in $Ω_{θ_1,θ_2}$,}\\ U &= 0&&\text{on $\partial Ω_{θ_1,θ_2}$,} \end{aligned} \right. \end{equation*} for $-λ_{1}<λ\leq 1$ are shown, where $Δ_{{\mathbb S}^3}$ is the Laplace-Beltrami operator, $λ_{1}$ is the first eigenvalue of $-Δ_{{\mathbb S}^3}$ and $Ω_{θ_1,θ_2}$ is an annular domain in ${\mathbb S}^3$: whose great circle distance (geodesic distance) from $(0,0,0,1)$ is greater than $θ_1$ and less than $θ_2$. A solution is said to be radial if it depends only on this geodesic distance. It is proved that the number of positive radial solutions of the problem changes with respect to the exponent $p$ and parameter $λ$ when $θ_1=\varepsilon$, $θ_2=π-\varepsilon$ and $0<\varepsilon$ is sufficiently small.
title Uniqueness and multiple existence of positive radial solutions of the Brezis-Nirenberg Problem on annular domains in ${\Bbb S}^{3}$
topic Analysis of PDEs
34B15, 35J65
url https://arxiv.org/abs/2412.15680