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Let M be a compact Riemannian manifold with boundary. Let b>0 be the number of connected components of its boundary. For manifolds of dimension at least 3, we prove that it is possible to obtain an arbitrarily large (b+1)-th Steklov…

Spectral Theory · Mathematics 2018-10-16 Bruno Colbois , Ahmad El Soufi , Alexandre Girouard

In this note we establish an expression for the Steklov spectrum of warped products in terms of auxiliary Steklov problems for drift Laplacians with weight induced by the warping factor. As an application, we show that a compact manifold…

Differential Geometry · Mathematics 2024-03-15 Alexandre Girouard , Panagiotis Polymerakis

We consider the class of compact n-dimensional Riemannian manifolds with cylindrical boundary, Ricci curvature bounded below by a given constant and injectivity radius bounded below by a positive constant, away from the boundary. For a…

Differential Geometry · Mathematics 2016-12-23 Bruno Colbois , Alexandre Girouard , Binoy Raveendran

We prove sharp $L^p$ estimates for the Steklov eigenfunctions on compact manifolds with boundary in terms of their $L^2$ norms on the boundary. We prove it by establishing $L^p$ bounds for the harmonic extension operators as well as the…

Analysis of PDEs · Mathematics 2023-01-03 Xiaoqi Huang , Yannick Sire , Xing Wang , Cheng Zhang

We present a unified description of extremal metrics for the Laplace and Steklov eigenvalues on manifolds of arbitrary dimension using the notion of $n$-harmonic maps. Our approach extends the well-known results linking extremal metrics for…

Differential Geometry · Mathematics 2021-03-30 Mikhail Karpukhin , Antoine Métras

We consider how the geometry and topology of a compact $n$-dimensional Riemannian orbifold with boundary relates to its Steklov spectrum. In two dimensions, motivated by work of A. Girouard, L. Parnovski, I. Polterovich and D. Sher in the…

We show that metrics that maximize the k-th Steklov eigenvalue on surfaces with boundary arise from free boundary minimal surfaces in the unit ball. We prove several properties of the volumes of these minimal submanifolds. For free boundary…

Differential Geometry · Mathematics 2013-04-04 Ailana Fraser , Richard Schoen

We prove two upper bounds for the Steklov eigenvalues of a compact Riemannian manifold with boundary. The first involves the volume of the manifold and of its boundary, as well as packing and volume growth constants of the boundary and its…

Spectral Theory · Mathematics 2023-08-22 Bruno Colbois , Alexandre Girouard

This work investigates upper bounds for the spectrum of the Steklov-type operator on Riemannian manifolds with boundary. We extend the Fraser-Schoen estimate for the first positive Steklov eigenvalue to higher Steklov eigenvalues, in terms…

Differential Geometry · Mathematics 2026-01-29 Tiarlos Cruz , Leandro F. Pessoa , Erisvaldo Véras

We consider the relationship of the geometry of compact Riemannian manifolds with boundary to the first nonzero eigenvalue sigma_1 of the Dirichlet-to-Neumann map (Steklov eigenvalue). For surfaces Sigma with genus gamma and k boundary…

Differential Geometry · Mathematics 2010-12-06 Ailana Fraser , Richard Schoen

The Steklov eigenvalue problem, first introduced over 125 years ago, has seen a surge of interest in the past few decades. This article is a tour of some of the recent developments linking the Steklov eigenvalues and eigenfunctions of…

Spectral Theory · Mathematics 2023-09-06 Bruno Colbois , Alexandre Girouard , Carolyn Gordon , David Sher

Consider a compact Riemannian manifold with boundary. In this short note we prove that under certain positive curvature assumptions on the manifold and its boundary the Steklov eigenvalues of the manifold are controlled by the Laplace…

Differential Geometry · Mathematics 2017-05-26 Mikhail A. Karpukhin

We obtain precise asymptotics for the Steklov eigenvalues on a compact Riemannian surface with boundary. It is shown that the number of connected components of the boundary, as well as their lengths, are invariants of the Steklov spectrum.…

Spectral Theory · Mathematics 2019-02-20 Alexandre Girouard , Leonid Parnovski , Iosif Polterovich , David A. Sher

We give results on optimal constants of isoperimetric inequalities involving Steklov eigenvalues on surfaces with boundary. We both consider this question on Riemannian surfaces with a same given topology or more specifically belonging to…

Differential Geometry · Mathematics 2025-08-15 Romain Petrides

We obtain upper and lower bounds for Steklov eigenvalues of submanifolds with prescribed boundary in Euclidean space. A very general upper bound is proved, which depends only on the geometry of the fixed boundary and on the measure of the…

Spectral Theory · Mathematics 2018-01-22 Bruno Colbois , Alexandre Girouard , Katie Gittins

We prove two explicit bounds for the multiplicities of Steklov eigenvalues $\sigma_k$ on compact surfaces with boundary. One of the bounds depends only on the genus of a surface and the index $k$ of an eigenvalue, while the other depends as…

Differential Geometry · Mathematics 2013-11-26 Mikhail Karpukhin , Gerasim Kokarev , Iosif Polterovich

We study the biharmonic Steklov eigenvalue problem on a compact Riemannian manifold $\Omega$ with smooth boundary. We give a computable, sharp lower bound of the first eigenvalue of this problem, which depends only on the dimension, a lower…

Differential Geometry · Mathematics 2012-07-02 Simon Raulot , Alessandro Savo

We explore the Steklov eigenvalue problem on convex polygons, focusing mainly on the inverse Steklov problem. Our primary finding reveals that, for almost all convex polygonal domains, there exist at most finitely many non-congruent domains…

Spectral Theory · Mathematics 2024-08-06 Emily B. Dryden , Carolyn Gordon , Javier Moreno , Julie Rowlett , Carlos Villegas-Blas

We investigate the geometric properties of Steklov eigenfunctions in smooth manifolds. We derive the refined doubling estimates and Bernstein's inequalities. For the real analytic manifolds, we are able to obtain the sharp upper bound for…

Analysis of PDEs · Mathematics 2020-04-29 Jiuyi Zhu

Using methods in the spirit of deterministic homogenisation theory we obtain convergence of the Steklov eigenvalues of a sequence of domains in a Riemannian manifold to weighted Laplace eigenvalues of that manifold. The domains are obtained…

Spectral Theory · Mathematics 2021-07-09 Alexandre Girouard , Jean Lagacé
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