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20102026
most citedOn the first eigenvalue of the Dirichlet-to-Neumann operator on forms

36 citations · 97 across the 22 of their papers we have counts for

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9 papers · 1 filter

math.SP2026

Maximisers for the second Neumann eigenvalue of annuli in two-dimensional space forms

Luigi Provenzano, Alessandro Savo

We prove a sharp Szegö-Weinberger-type inequality for balanced doubly connected domains in , and . More precisely, the first positive Neuman…

math.SP2026

Isoperimetric inequalities and sharp upper bounds for Aharonov-Bohm eigenvalues on surfaces

Marco Michetti, Luigi Provenzano, Alessandro Savo

We consider the first eigenvalue of the magnetic Laplacian with zero magnetic field on simply connected compact surfaces and we establish isoperimetric inequalities and upper bound…

math.SP2026

On the isoperimetric inequality for the first positive Neumann eigenvalue on the sphere

Luigi Provenzano, Alessandro Savo

We prove that geodesic disks are the unique maximizers of the first positive Neumann eigenvalue among all simply connected domains in with prescribed area. We then sh…

math.SP2024★ 8 cited

A reverse Faber-Krahn inequality for the magnetic Laplacian

Bruno Colbois, Corentin Léna, Luigi Provenzano +1

We consider the first eigenvalue of the magnetic Laplacian in a bounded and simply connected planar domain, with uniform magnetic field and Neumann boundary conditions. We investig…

math.SP2023★ 1 cited

Geometry of the magnetic Steklov problem on Riemannian annuli

Luigi Provenzano, Alessandro Savo

We study the geometry of the first two eigenvalues of a magnetic Steklov problem on an annulus (a compact Riemannian surface with genus zero and two boundary components), the m…

math.SP2023★ 1 cited

Geometric bounds for the magnetic Neumann eigenvalues in the plane

Bruno Colbois, Corentin Léna, Luigi Provenzano +1

We consider the eigenvalues of the magnetic Laplacian on a bounded domain of with uniform magnetic field and magnetic Neumann boundary conditions. We find u…

math.SP2022★ 1 cited

Isoperimetric inequalities for the magnetic Neumann and Steklov problems with Aharonov-Bohm magnetic potential

Bruno Colbois, Luigi Provenzano, Alessandro Savo

We discuss isoperimetric inequalities for the magnetic Laplacian on bounded domains of endowed with an Aharonov-Bohm potential. When the flux of the potential around…

math.SP2020

Lower bounds for the first eigenvalue of the Laplacian with zero magnetic field in planar domains

Bruno Colbois, Alessandro Savo

We study the Laplacian with zero magnetic field acting on complex functions of a planar domain , with magnetic Neumann boundary conditions. If is simply connected then the s…

math.SP2017★ 10 cited

The Steklov spectrum of cuboids

Alexandre Girouard, Jean Lagacé, Iosif Polterovich +1

The paper is concerned with the Steklov eigenvalue problem on cuboids of arbitrary dimension. We prove a two-term asymptotic formula for the counting function of Steklov eigenvalue…