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The norm resolvent convergence of a family of one-dimensional Schroedinger operators with singular magnetic and electric potentials of small support is studied.

Spectral Theory · Mathematics 2013-09-03 Yuriy Golovaty

This paper can be considered as a sequel of [BS14] by Bernicot and Samoyeau, where the authors have proposed a general way of deriving Strichartz estimates for the Schr{\"o}dinger equation from a dispersive property of the wave propagator.…

Analysis of PDEs · Mathematics 2016-05-05 Valentin Samoyeau

In this paper we prove sharp resolvent estimates for the magnetic Schr\"odinger operator in $\mathbb{R}^d$, $d\ge 3$, with $L^\infty$ short-range electric and magnetic potentials. We also show that these resolvent estimates still hold for…

Analysis of PDEs · Mathematics 2025-06-10 Andrés Larraín-Hubach , Jacob Shapiro , Georgi Vodev

We prove optimal high-frequency resolvent estimates for perturbations by large magnetic and electric potentials

Analysis of PDEs · Mathematics 2014-02-11 Georgi Vodev

We show the necessity of the non trapping condition for the plain smoothing effect ($H^{1/2}$) for Schr\"odinger equation with Dirichlet boundary conditions in exterior problems. We also give a class of trapped obstacles (Ikawa's example)…

Analysis of PDEs · Mathematics 2007-05-23 Nicolas Burq

The matrix Schroedinger equation with a selfadjoint matrix potential is considered on the half line with the most general selfadjoint boundary condition at the origin. When the matrix potential is integrable and has a second moment, it is…

Mathematical Physics · Physics 2014-06-30 Tuncay Aktosun , Martin Klaus , Ricardo Weder

We study the well-posedness of the Cauchy problem with Dirichlet or Neumann boundary conditions associated to an H 1 -critical semilinear wave equation on a smooth bounded 2D domain {\Omega}. First, we prove an appropriate Strichartz type…

Analysis of PDEs · Mathematics 2010-08-17 S. Ibrahim , R. Jrad

In this paper we study the Gevrey smoothing effect of solutions to the non-cutoff spatially homogeneous and inhomogeneous Boltzmann equation for soft potential. We consider the mild singularity case $s<1/2$ as we did in the previous work…

Analysis of PDEs · Mathematics 2013-12-19 Teng-Fei Zhang , Zhaoyang Yin

This paper deals with Schr\"{o}dinger equations with potentials which are time-dependent non-smooth and at most quadratic growth. In the case where potentials are smooth with respect to spatial variables, fundamental solutions have explicit…

Analysis of PDEs · Mathematics 2024-03-13 Shun Takizawa

For the magnetic Hamiltonian with singular vector potentials, we analytically continue the resolvent to a logarithmic neighborhood of the positive real axis and prove resolvent estimates there. As applications, we obtain asymptotic…

Analysis of PDEs · Mathematics 2022-07-27 Mengxuan Yang

We construct a potential $V$ on $\RR^d$, smooth away from one pole, and a sequence of quasi-modes for the operator $-\Delta+V$, which concentrate on this pole. No smoothing effect, Strichartz estimates nor dispersive inequalities hold for…

Analysis of PDEs · Mathematics 2007-05-23 Thomas Duyckaerts

In mathematical physics it is of interest to study Schr\"odinger equations with friction and possessing an invariant measure. The focus of this paper is the Cauchy problem for the Schr\"odinger equation $\p_t f - i \mathscr L f = 0$, where…

Analysis of PDEs · Mathematics 2025-09-30 Nicola Garofalo

We deal with fixed-time and Strichartz estimates for the Schr\"odinger propagator as an operator on Wiener amalgam spaces. We discuss the sharpness of the known estimates and we provide some new estimates which generalize the classical…

Analysis of PDEs · Mathematics 2016-06-28 Elena Cordero , Fabio Nicola

We prove dispersive and Strichartz estimates for Schr\"o- dinger equations on a class of locally symmetric spaces {\Gamma}\X, where X = G/K is a symmetric space and {\Gamma} is a torsion free discrete sub- group of G. We deal with the cases…

Analysis of PDEs · Mathematics 2015-09-16 Anestis Fotiadis , Nikolaos Mandouvalos , Michel Marias

We consider the Schr\"odinger map initial value problem into the sphere in 2+1 dimensions with smooth, decaying, subthreshold initial data. Assuming an a priori $L^4$ boundedness condition on the solution, we prove that the Schr\"odinger…

Analysis of PDEs · Mathematics 2013-01-30 Paul Smith

Let \( H = (-\Delta)^m + V \) be a higher-order elliptic operator on \( L^2(\mathbb{R}^n) \), where \( V \) is a general bounded decaying potential. This paper focuses on the global Kato smoothing and Strichartz estimates for solutions to…

Analysis of PDEs · Mathematics 2024-10-31 Haruya Mizutani , Xiaohua Yao

The scattering matrix of the Schrodinger operator with smooth short-range electric and magnetic potentials is considered. The asymptotic density of the eigenvalues of this scattering matrix in the high energy regime is determined. An…

Spectral Theory · Mathematics 2012-08-22 Daniel Bulger , Alexander Pushnitski

This paper investigates the localization properties of solutions to the semi-classical Schr\"odinger equation on closed Riemann surfaces. Unlike classical studies that assume a smooth potential, our work addresses the challenges arising…

Analysis of PDEs · Mathematics 2026-01-06 Sébastien Campagne

This paper investigates the inverse scattering problem for the magnetic Schr\"odinger equation. We first establish the well-posedness of the direct problem through a variational approach under physically meaningful assumptions on the…

Analysis of PDEs · Mathematics 2025-10-10 Chaohua Duan , Zhen Xue

We prove global Strichartz estimates (with spectral cutoff on the low frequencies) for non trapping metric perturbations of the Schroedinger equation, posed on the Euclidean space.

Analysis of PDEs · Mathematics 2007-05-23 Jean-Marc Bouclet , Nikolay Tzvetkov