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Let $\Sigma\subset\mathbb{R}^d$ be a $C^\infty$-smooth closed compact hypersurface, which splits the Euclidean space $\mathbb{R}^d$ into two domains $\Omega_\pm$. In this note self-adjoint Schr\"odinger operators with $\delta$ and…

Spectral Theory · Mathematics 2024-06-17 Jussi Behrndt , Matthias Langer , Vladimir Lotoreichik

In this work we establish trace Hardy-Sobolev-Maz'ya inequalities with best Hardy constants, for weakly mean convex domains. We accomplish this by obtaining a new weighted Hardy type estimate which is of independent inerest. We then produce…

Analysis of PDEs · Mathematics 2014-09-17 Stathis Filippas , Luisa Moschini , Achilles Tertikas

The trace formula for the density of single-particle levels in the two-dimensional radial power-law potentials, which nicely approximate the radial dependence of the Woods-Saxon potential and quantum spectra in a bound region, was derived…

Exactly Solvable and Integrable Systems · Physics 2015-06-15 A. G. Magner , A. A. Vlasenko , K. Arita

We consider an open manifold which is the interior of a compact manifold with boundary. Assuming gauge invariance, we classify magnetic fields with compact support into being trapping or non-trapping. We study spectral properties of the…

Spectral Theory · Mathematics 2014-02-12 Sylvain Golénia , Sergiu Moroianu

The aim of this work is the study of magnetic trajectories on nilmanifolds. The magnetic equation is written and the corresponding solutions are found for a family of invariant Lorentz forces on a 2-step nilpotent Lie group equipped with a…

Differential Geometry · Mathematics 2022-11-11 Gabriela P. Ovando , Mauro Subils

In this article, we answer-for a class of magnetic systems-a question now known as the contact type conjecture, whose origin trace back to the 1998 work of Contreras, Iturriaga, Paternain, and Paternain. For a broad class of magnetic…

Symplectic Geometry · Mathematics 2026-04-21 Lina Deschamps , Levin Maier , Tom Stalljohann

The core result of this paper is an upper bound for the ground state energyof the magnetic Laplacian with constant magnetic field on cones that are contained in ahalf-space. This bound involves a weighted norm of the magnetic field related…

Spectral Theory · Mathematics 2017-11-23 Virginie Bonnaillie-Noël , Monique Dauge , Nicolas Popoff , Nicolas Raymond

Recent work in the literature had evaluated the energy-momentum tensor of a Casimir apparatus in a weak gravitational field, for an electromagnetic field subject to perfect conductor boundary conditions on parallel plates. The Casimir…

High Energy Physics - Theory · Physics 2008-11-26 Giampiero Esposito , George M. Napolitano , Luigi Rosa

We consider an $\varepsilon$-periodic ($\varepsilon\to 0$) tubular structure, modelled as a magnetic Laplacian on a metric graph, which is periodic along a single axis. We show that the corresponding Hamiltonian admits norm-resolvent…

Mathematical Physics · Physics 2024-02-29 Alexander V. Kiselev , Kirill Ryadovkin

We study zero modes of Laplacians on compact and non-compact metric graphs with general self-adjoint vertex conditions. In the first part of the paper the number of zero modes is expressed in terms of the trace of a unitary matrix…

Mathematical Physics · Physics 2015-05-27 Jens Bolte , Sebastian Egger , Frank Steiner

We consider the case of scattering by several obstacles in $\mathbb{R}^d$ for $d \geq 2$. We establish a relative trace formula for Neumann and transmission boundary conditions analogous to the one obtained in arXiv:2002.07291 for Dirichlet…

Mathematical Physics · Physics 2026-05-21 Arne Hofmann , Alexander Strohmaier

We study the leading low temperature dependence of magnetic susceptibility of one-dimensional electrons with fixed total number of particles at the magnetic fields equal to zero temperature critical values where magnetic field induces…

Strongly Correlated Electrons · Physics 2014-03-26 Temo Vekua

We describe a method for symplectic tracking of charged particles through static electric and magnetic fields. The method can be applied to cases where the fields have a dependence on longitudinal as well as transverse position, and where…

Accelerator Physics · Physics 2018-08-22 Andrzej Wolski , Alex Herrod

We study a model Schr\"odinger operator with constan tmagnetic field on an infinite wedge with natural boundary conditions. This problem is related to the semiclassical magnetic Laplacian on 3d domains with edges. We show that the ground…

Analysis of PDEs · Mathematics 2013-09-25 Nicolas Popoff

We exploit fluctuational electrodynamics to present trace expressions for the torque experienced by arbitrary objects in a passive, nonabsorbing, rotationally invariant background environment. We present trace expressions for equilibrium…

Optics · Physics 2023-10-31 Benjamin Strekha , Matthias Krüger , Alejandro W. Rodriguez

The sharp trace inequality of Jose Escobar is extended to traces for the fractional Laplacian on R^n and a complete characterization of cases of equality is discussed. The proof proceeds via Fourier transform and uses Lieb's sharp form of…

Analysis of PDEs · Mathematics 2025-05-26 Amit Einav , Michael Loss

We derive an explicit formula for the trace of an arbitrary Hecke operator on spaces of twist-minimal holomorphic cusp forms with arbitrary level and character, and weight at least 2. We show that this formula provides an efficient way of…

Number Theory · Mathematics 2021-02-17 Kieran Child

For local conformal field theories, it is shown how to construct an expression for the energy-momentum tensor in terms of a Wilsonian effective Lagrangian. Tracelessness implies a single, unintegrated equation which enforces both the Exact…

High Energy Physics - Theory · Physics 2018-04-24 Oliver J. Rosten

By extending the new supersymmetric localization principle introduced in \cite{Choi:2021yuz}, we present a path integral derivation of the Selberg trace formula on arbitrary compact Riemann surfaces, including the case of arbitrary…

High Energy Physics - Theory · Physics 2025-03-03 Changha Choi , Leon A. Takhtajan

A trace formula for Toeplitz operators was proved by Boutet de Monvel and Guillemin in the setting of general Toeplitz structures. Here we give a local version of this result for a class of Toeplitz operators related to continuous groups of…

Spectral Theory · Mathematics 2015-05-13 Roberto Paoletti