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Related papers: Magnetic confinement for the 3D Robin Laplacian

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In this paper we give a detailed asymptotic formula for the lowest eigenvalue of the magnetic Neumann Schr\"odinger operator in the ball in three dimensions with constant magnetic field, as the strength of the magnetic field tends to…

Mathematical Physics · Physics 2009-11-26 S. Fournais , M. Persson

Let $\Omega$ be an unbounded two dimensional strip on a ruled surface in $\mathbb{R}^d$, $d\geq2$. Consider the Laplacian operator in $\Omega$ with Dirichlet and Neumann boundary conditions on opposite sides of $\Omega$. We prove some…

Functional Analysis · Mathematics 2021-11-29 Rafael T. Amorim , Alessandra A. Verri

We study relationships between asymptotic geometry of submanifolds in the hyperbolic space and their regularity properties near the ideal boundary, revisiting some of the related results in the literature. In particular, we discuss…

Differential Geometry · Mathematics 2025-01-16 Gerasim Kokarev

In this paper, we study existence, uniqueness and asymptotic behavior of the Laplace equation with dynamical boundary conditions on regular non-cylindrical domains. We write the problem as a non-autonomous Dirichlet-to-Neumann operator and…

Analysis of PDEs · Mathematics 2017-12-14 Pedro T. P. Lopes , Marcone C. Pereira

We prove Lieb-Thirring inequalities for Schr\"odinger operators with a homogeneous magnetic field in two and three space dimensions. The inequalities bound sums of eigenvalues by a semi-classical approximation which depends on the strength…

Spectral Theory · Mathematics 2015-05-27 Rupert L. Frank , Rikard Olofsson

In this paper we analyze the limit behavior of a family of solutions of the Laplace operator with homogeneous Neumann boundary conditions, set in a two-dimensional thin domain which presents weak oscillations on both boundaries and with…

Analysis of PDEs · Mathematics 2024-05-28 Pricila S. Barbosa , Manuel Villanueva-Pesqueira

We show that the spectrum of the curl operator on a generic smoothly bounded domain in three-dimensional Euclidean space consists of simple eigenvalues. The main new ingredient in our proof is a formula for the variation of curl eigenvalues…

Spectral Theory · Mathematics 2025-05-30 Josef Greilhuber , Willi Kepplinger

We consider Laplace's equation in a periodically perforated domain with Robin boundary conditions on the holes, where the Robin coefficient is scaled proportionally to the inverse total surface area of the performations. We identify a…

Analysis of PDEs · Mathematics 2026-05-06 Giacomo Canevari , Kirill Cherednichenko , Arghir Zarnescu

We consider the Laplace operator with Dirichlet boundary conditions on a planar domain and study the effect that performing a scaling in one direction has on the spectrum. We derive the asymptotic expansion for the eigenvalues and…

Spectral Theory · Mathematics 2007-12-20 Denis Borisov , Pedro Freitas

In this paper we study the main properties of the first eigenvalue and its eigenfunctions of a class of highly nonlinear elliptic operators in a bounded Lipschitz domain, assuming a Robin boundary condition. Moreover, we prove a Faber-Krahn…

Analysis of PDEs · Mathematics 2013-11-15 Francesco Della Pietra , Nunzia Gavitone

The paper is concerned with the principal eigenvalue of some linear elliptic operators with drift in two dimensional space. We provide a refined description of the asymptotic behavior for the principal eigenvalue as the drift rate…

Analysis of PDEs · Mathematics 2024-05-17 Shuang Liu , Yuan Lou , Maolin Zhou

Let $\omega\subset\mathbb{R}^n$ be a bounded domain with Lipschitz boundary. For $\varepsilon>0$ and $n\in\mathbb{N}$ consider the infinite cone $\Omega_{\varepsilon}:=\big\{(x_1,x')\in (0,\infty)\times\mathbb{R}^n: x'\in\varepsilon…

Spectral Theory · Mathematics 2023-09-06 Konstantin Pankrashkin , Marco Vogel

We are interested in the spectrum of the Dirichlet Laplacian in thin broken strips with angle $\alpha$. Playing with symmetries, this leads us to investigate spectral problems for the Laplace operator with mixed boundary conditions in…

Analysis of PDEs · Mathematics 2026-05-26 Lucas Chesnel , Sergei A. Nazarov

In this paper, we study the first eigenvalue of the Laplacian on doubly connected domains when Robin and Dirichlet conditions are imposed on the outer and the inner part of the boundary, respectively. We provide that the spherical shell…

Analysis of PDEs · Mathematics 2024-10-10 Nunzia Gavitone , Gianpaolo Piscitelli

We consider the nonlinear eigenvalue problem, with Dirichlet boundary condition, for a class of very degenerate elliptic operators, with the aim to show that, at least for square type domains having fixed volume, the symmetry of the domain…

Analysis of PDEs · Mathematics 2018-03-21 Isabeau Birindelli , Giulio Galise , Hitoshi Ishii

We prove the Kato square root estimate for second-order divergence form elliptic operators $-div(A\nabla)$ on a bounded, locally uniform domain $D \subseteq \mathbb{R}^n$, for accretive coefficients $A \in L^\infty(D; \mathbb{C}^n)$, under…

Analysis of PDEs · Mathematics 2026-01-09 Sebastian Bechtel , Andreas Rosén

We prove asymptotically optimal upper bounds for the eigenvalues of the Wentzel-Laplace operator on Riemannian manifolds with Ricci curvature bounded below. These bounds depend highly on the geometry of the boundary in addition to the…

Metric Geometry · Mathematics 2020-06-23 Aïssatou M. Ndiaye

Inspired by a paper by T. Chakradhar, K. Gittins, G. Habib and N. Peyerimhoff, we analyze their conjecture that the ground state energy of the magnetic Dirichlet-to-Neumann operator tends to infinity as the magnetic field tends to infinity.…

Mathematical Physics · Physics 2025-01-15 Bernard Helffer , Ayman Kachmar , Francois Nicoleau

We apply the method of inverse iteration to the Laplace eigenvalue problem with Robin and mixed Dirichlet-Neumann boundary conditions, respectively. For each problem, we prove convergence of the iterates to a non-trivial principal…

Analysis of PDEs · Mathematics 2025-06-03 Benjamin Lyons , Emily Ruttenberg , Nicholas Zitzelberger

The eigenvalue problem for the Laplacian on bounded, planar, convex domains with mixed boundary conditions is considered, where a Dirichlet boundary condition is imposed on a part of the boundary and a Neumann boundary condition on its…

Spectral Theory · Mathematics 2023-01-26 Nausica Aldeghi , Jonathan Rohleder
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