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We study the Robin eigenvalue problem for the Laplace-Beltrami operator on Riemannian manifolds. Our first result is a comparison theorem for the second Robin eigenvalue on geodesic balls in manifolds whose sectional curvatures are bounded…

Differential Geometry · Mathematics 2020-03-09 Xiaolong Li , Kui Wang , Haotian Wu

For a bounded corner domain $\Omega$, we consider the Robin Laplacian in $\Omega$ with large Robin parameter. Exploiting multiscale analysis and a recursive procedure, we have a precise description of the mechanism giving the ground state…

Spectral Theory · Mathematics 2016-08-03 Nicolas Popoff , Vincent Bruneau

We study convergence modes as well as their respective rates for the resolvent difference of Robin and Dirichlet Laplacian on bounded smooth domains in the large coupling limit. Asymptotic expansions for the resolvent, the eigenprojections…

Analysis of PDEs · Mathematics 2015-11-20 Faten Belgacem , Hichem BelhadjAli , Ali BenAmor , Amina Thabet

Motivated by the study of high energy Steklov eigenfunctions, we examine the semi-classical Robin Laplacian. In the two dimensional situation, we determine an effective operator describing the asymptotic distribution of the negative…

Spectral Theory · Mathematics 2021-02-16 B. Helffer , A. Kachmar

This paper considers how the eigenvalues of the Neumann problem for an elliptic operator depend on the domain. The proximity of two domains is measured in terms of the norm of the difference between the two resolvents corresponding to the…

Analysis of PDEs · Mathematics 2014-12-19 Vladimir Kozlov , Johan Thim

The second eigenvalue of the Robin Laplacian is shown to be maximal for the ball among domains of fixed volume, for negative values of the Robin parameter $\alpha$ in the regime connecting the first nontrivial Neumann and Steklov…

Spectral Theory · Mathematics 2018-10-18 Pedro Freitas , Richard Laugesen

We study the behaviour, as $p \to +\infty$, of the second eigenvalues of the $p$-Laplacian with Robin boundary conditions and the limit of the associated eigenfunctions. We prove that, up to some regularity of the set, the limit of the…

Analysis of PDEs · Mathematics 2025-10-29 Vincenzo Amato , Alba Lia Masiello , Carlo Nitsch , Cristina Trombetti

We study the Laplacian in a smooth bounded domain, with a varying Robin boundary condition singular at one point. The associated quadratic form is not semi-bounded from below, and the corresponding Laplacian is not self-adjoint, it has the…

Spectral Theory · Mathematics 2017-11-28 Sergei A. Nazarov , Nicolas Popoff

We consider the first Robin eigenvalue $\l_p(M,\a)$ for the $p$-Laplacian on a compact Riemannian manifold $M$ with nonempty smooth boundary, with $\a \in \R$ being the Robin parameter. Firstly, we prove eigenvalue comparison theorems of…

Analysis of PDEs · Mathematics 2020-10-07 Xiaolong Li , Kui Wang

We consider the problem of geometric optimization of the lowest eigenvalue for the Laplacian on a compact, simply-connected two-dimensional manifold with boundary subject to an attractive Robin boundary condition. We prove that in the…

Spectral Theory · Mathematics 2019-11-14 Magda Khalile , Vladimir Lotoreichik

We consider a Riemannian cylinder endowed with a closed potential 1-form A and study the magnetic Laplacian with magnetic Neumann boundary conditions associated with those data. We establish a sharp lower bound for the first eigenvalue and…

Differential Geometry · Mathematics 2017-09-28 Bruno Colbois , Alessandro Savo

Previous works provided several counterexamples to monotonicity of the lowest eigenvalue for the magnetic Laplacian in the two-dimensional case. However, the three-dimensional case is less studied. We use the results obtained by Helffer,…

Spectral Theory · Mathematics 2022-09-21 Germán Miranda

We consider the Laplacian in a domain squeezed between two parallel hypersurfaces in Euclidean spaces of any dimension, subject to Dirichlet boundary conditions on one of the hypersurfaces and Neumann boundary conditions on the other. We…

Spectral Theory · Mathematics 2014-07-29 David Krejcirik

In this paper, we want to study the asymptotic behavior of the first $p$-Laplacian eigenvalue, with Robin boundary conditions, with negative boundary parameter. In particular, we prove that the limit of the eigenfunctions is a viscosity…

Analysis of PDEs · Mathematics 2025-04-03 Rosa Barbato , Francesca de Giovanni , Alba Lia Masiello

We study the asymptotic behaviour of the principal eigenvalue of a Robin (or generalised Neumann) problem with a large parameter in the boundary condition for the Laplacian in a piecewise smooth domain. We show that the leading asymptotic…

Spectral Theory · Mathematics 2007-05-23 Michael Levitin , Leonid Parnovski

We introduce Robin boundary conditions for biharmonic operators, which are a model for elastically supported plates and are closely related to the study of spaces of traces of Sobolev functions. We study the dependence of the operator, its…

Analysis of PDEs · Mathematics 2021-05-25 Davide Buoso , James B. Kennedy

We prove two-term spectral asymptotics for the Riesz means of the eigenvalues of the Laplacian on a Lipschitz domain with Robin boundary conditions. The second term is the same as in the case of Neumann boundary conditions. This is valid…

Spectral Theory · Mathematics 2025-06-03 Rupert L. Frank , Simon Larson

The spectrum of the Dirichlet Laplacian on conical layers is analysed through two aspects: the infiniteness of the discrete eigenvalues and their expansions in the small aperture limit. On the one hand, we prove that, for any aperture, the…

Numerical Analysis · Mathematics 2017-11-23 Monique Dauge , Thomas Ourmières-Bonafos , Nicolas Raymond

We consider Robin Laplace operators on a class of two-dimensional domains with cusps. Our main results include the formula for the asymptotic distribution of the eigenvalues of such operators. In particular, we show how the eigenvalue…

Spectral Theory · Mathematics 2014-02-26 Hynek Kovarik

We consider the first eigenvalue $\lambda_1(\Omega,\sigma)$ of the Laplacian with Robin boundary conditions on a compact Riemannian manifold $\Omega$ with smooth boundary, $\sigma\in\bf R$ being the Robin boundary parameter. When $\sigma>0$…

Analysis of PDEs · Mathematics 2019-04-17 Alessandro Savo