Peculiar behavior of the principal Laplacian eigenvalue for large negative Robin parameters

Fuente: arXiv
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Auteurs principaux: Dietze, Charlotte, Pankrashkin, Konstantin
Format: Preprint
Publié: 2024
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author Dietze, Charlotte
Pankrashkin, Konstantin
author_facet Dietze, Charlotte
Pankrashkin, Konstantin
contents Let $Ω\subset\mathbb{R}^n$ with $n\ge 2$ be a bounded Lipschitz domain with outer unit normal $ν$. For $α\in\mathbb{R}$ let $R_Ω^α$ be the Laplacian in $Ω$ with the Robin boundary condition $\partial_νu+αu=0$, and denote by $E(R^α_Ω)$ its principal eigenvalue. In 2017 Bucur, Freitas and Kennedy stated the following open question: Does the limit of the ratio $E(R_Ω^α)/ α^2$ for $α\to-\infty$ always exist? We give a negative answer.
format Preprint
id arxiv_https___arxiv_org_abs_2412_04061
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Peculiar behavior of the principal Laplacian eigenvalue for large negative Robin parameters
Dietze, Charlotte
Pankrashkin, Konstantin
Spectral Theory
Analysis of PDEs
Primary 35P15, Secondary 49R05, 35J05
Let $Ω\subset\mathbb{R}^n$ with $n\ge 2$ be a bounded Lipschitz domain with outer unit normal $ν$. For $α\in\mathbb{R}$ let $R_Ω^α$ be the Laplacian in $Ω$ with the Robin boundary condition $\partial_νu+αu=0$, and denote by $E(R^α_Ω)$ its principal eigenvalue. In 2017 Bucur, Freitas and Kennedy stated the following open question: Does the limit of the ratio $E(R_Ω^α)/ α^2$ for $α\to-\infty$ always exist? We give a negative answer.
title Peculiar behavior of the principal Laplacian eigenvalue for large negative Robin parameters
topic Spectral Theory
Analysis of PDEs
Primary 35P15, Secondary 49R05, 35J05
url https://arxiv.org/abs/2412.04061