Inequalities between Dirichlet and Neumann Eigenvalues on Surfaces

Fuente: arXiv
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Main Authors: Hua, Bobo, Münch, Florentin, Zhang, Haohang
Format: Preprint
Published: 2024
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author Hua, Bobo
Münch, Florentin
Zhang, Haohang
author_facet Hua, Bobo
Münch, Florentin
Zhang, Haohang
contents For a bounded Lipschitz domain $Σ$ in a Riemannian surface $M$ satisfying certain curvature condition, we prove that $$μ_{3-β_1} \leq λ_{1},$$ where $μ_k$ ($λ_k$ resp.) is the $k$-th Neumann (Dirichlet resp.) Laplacian eigenvalue on $Σ$ and $β_1$ is the first Betti number of $Σ.$ If $Σ$ is smooth and simply connected, we can further derive the strict inequality $ μ_{3}< λ_{1}. $ This extends previous results on the Euclidean space to various curved surfaces, including the flat cylinder, the hyperbolic plane, hyperbolic cusp, collar, funnel, and minimal surfaces such as catenoid and helicoid. The novelty of the paper lies in comparing Dirichlet and Neumann Laplacian eigenvalues via the variational principle of the Hodge Laplacian on $1$-forms on a surface, extending the variational principle on vector fields in the Euclidean plane as developed by Rohleder. The comparison is reduced to the existence of a distance function with appropriate curvature conditions on its level sets.
format Preprint
id arxiv_https___arxiv_org_abs_2412_19480
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Inequalities between Dirichlet and Neumann Eigenvalues on Surfaces
Hua, Bobo
Münch, Florentin
Zhang, Haohang
Differential Geometry
Analysis of PDEs
Spectral Theory
35J05, 35P15
For a bounded Lipschitz domain $Σ$ in a Riemannian surface $M$ satisfying certain curvature condition, we prove that $$μ_{3-β_1} \leq λ_{1},$$ where $μ_k$ ($λ_k$ resp.) is the $k$-th Neumann (Dirichlet resp.) Laplacian eigenvalue on $Σ$ and $β_1$ is the first Betti number of $Σ.$ If $Σ$ is smooth and simply connected, we can further derive the strict inequality $ μ_{3}< λ_{1}. $ This extends previous results on the Euclidean space to various curved surfaces, including the flat cylinder, the hyperbolic plane, hyperbolic cusp, collar, funnel, and minimal surfaces such as catenoid and helicoid. The novelty of the paper lies in comparing Dirichlet and Neumann Laplacian eigenvalues via the variational principle of the Hodge Laplacian on $1$-forms on a surface, extending the variational principle on vector fields in the Euclidean plane as developed by Rohleder. The comparison is reduced to the existence of a distance function with appropriate curvature conditions on its level sets.
title Inequalities between Dirichlet and Neumann Eigenvalues on Surfaces
topic Differential Geometry
Analysis of PDEs
Spectral Theory
35J05, 35P15
url https://arxiv.org/abs/2412.19480