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We prove $L^p$ and smoothing estimates for the resolvent of magnetic Schr\"odinger operators. We allow electromagnetic potentials that are small perturbations of a smooth, but possibly unbounded background potential. As an application, we…

偏微分方程分析 · 数学 2016-07-19 Jean-Claude Cuenin , Carlos Kenig

In this paper we consider the Laplace-Beltrami operator \Delta on Damek-Ricci spaces and derive pointwise estimates for the kernel of exp(\tau \Delta), when \tau \in C* with Re(\tau) \geq 0. When \tau \in iR*, we obtain in particular…

偏微分方程分析 · 数学 2010-10-12 Jean-Philippe Anker , Vittoria Pierfelice , Maria Vallarino

We prove some new Strichartz estimates for a class of dispersive equations with radial initial data. In particular, we obtain up to some endpoints the full radial Strichartz estimates for the Schr\"odinger equation. The ideas of proof are…

偏微分方程分析 · 数学 2011-05-04 Zihua Guo , Yuzhao Wang

We prove the optimal endpoint Strichartz estimates for Schr\"{o}dinger equation with charge transfer potentials and a general source term in $\mathbb{R}^n$ for $n\geq3$. The proof is based on using the projection on the scattering states…

偏微分方程分析 · 数学 2017-02-15 Qingquan Deng , Avy Soffer , Xiaohua Yao

We show new local $L^p$-smoothing estimates for the Schr\"odinger equation with initial data in modulation spaces via decoupling inequalities. Furthermore, we probe necessary conditions by Knapp-type examples for space-time estimates of…

偏微分方程分析 · 数学 2022-02-04 Robert Schippa

This paper applies Hermite function techniques to give elementary proofs of Kato type smoothing estimates for the Schr\"odinger equation with quadratic potential in R^n+1. This is equivalent to proving a uniform L^2(R^n) to L^2(R^n)…

偏微分方程分析 · 数学 2010-11-23 Xuwen Chen

We study the dispersive properties of the Schr\"odinger equation. Precisely, we look for estimates which give a control of the local regularity and decay at infinity {\it separately}. The Banach spaces that allow such a treatment are the…

偏微分方程分析 · 数学 2016-06-28 E. Cordero , F. Nicola

In this paper, we study the $L^{p}$-estimates for the solution to the $2\mathrm{D}$-wave equation with a scaling-critical magnetic potential. Inspired by the work of \cite{FZZ}, we show that the operators…

偏微分方程分析 · 数学 2025-02-06 Jialu Wang , Fang Zhang , Junyong Zhang , Jiqiang Zheng

Sharp Strichartz estimates are proved for Schr\"odinger and wave equations with Lipschitz coefficients satisfying additional structural assumptions. We use Phillips functional calculus as a substitute for Fourier inversion, which shows how…

偏微分方程分析 · 数学 2023-05-16 Dorothee Frey , Robert Schippa

We study the dispersive behaviors of two-particles Schr\"odinger and wave equations in the Aharonov-Bohm field. In particular, we prove the Strichartz estimates for Schr\"odinger and wave equations in this setting. The key point is to…

偏微分方程分析 · 数学 2021-10-14 Xiaofen Gao , Junyong Zhang , Jiqiang Zheng

We generalize the Strichartz estimates for Schr\"odinger operators on compact manifolds of Burq, G\'erard and Tzvetkov [10] by allowing critically singular potentials $V$. Specifically, we show that their $1/p$--loss $L^p_tL^q_x(I\times…

偏微分方程分析 · 数学 2021-06-03 Xiaoqi Huang , Christopher D. Sogge

We prove sharp Strichartz estimates for the semi-classical Schrodinger equation on a compact manifold with smooth, strictly geodesically concave boundary. We deduce sharp (classical) Strichartz estimates for the Schrodinger equation outside…

偏微分方程分析 · 数学 2009-09-04 Oana Ivanovici

We prove generalized Strichartz estimates with weaker angular integrability for the Schr\"odinger equation. Our estimates are sharp except some endpoints. Then we apply these new estimates to prove the scattering for the 3D Zakharov system…

偏微分方程分析 · 数学 2014-06-11 Zihua Guo

We prove resolvent estimates for a Schr\"odinger operator with a short-range potential outside an obstacle with Dirichlet boundary conditions. As a consequence, we deduce integrability of the local energy for the wave equation, and…

偏微分方程分析 · 数学 2024-11-25 Thomas Duyckaerts , Jianwei Urban Yang

We study the Schr\"odinger equation on a flat euclidean cone $\mathbb{R}_+ \times \mathbb{S}^1_\rho$ of cross-sectional radius $\rho > 0$, developing asymptotics for the fundamental solution both in the regime near the cone point and at…

偏微分方程分析 · 数学 2010-10-05 G. Austin Ford

We establish the sharp \( l^1 \to l^{\infty} \) decay estimate for the discrete Schr\"odinger equation (DS) on the Layered King's Grid (LKG), with a dispersive decay rate of \( \langle t \rangle^{-13/12} \), which is faster than that for…

偏微分方程分析 · 数学 2025-07-30 Zhiqiang Wan , Heng Zhang

In this paper, we study the linear and nonlinear Schr\"odinger equations with a time-decaying harmonic oscillator and inverse-square potential. This model retains a form of scale invariance, and using this property, we demonstrate the…

偏微分方程分析 · 数学 2025-07-25 Atsuhide Ishida , Masaki Kawamoto

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…

偏微分方程分析 · 数学 2015-09-16 Anestis Fotiadis , Nikolaos Mandouvalos , Michel Marias

We study the theory of scattering for a Schr"odinger equation in an external time dependent magnetic field in the Coulomb gauge, in space dimension 3. The magnetic vector potential is assumed to satisfy decay properties in time that are…

偏微分方程分析 · 数学 2007-05-23 J. Ginibre , G. Velo

We firstly prove Strichartz estimates for the fractional Schr\"odinger equations on $\mathbb{R}^d$ endowed with a smooth bounded metric $g$. We then prove Strichartz estimates for the fractional Schr\"odinger and wave equations on compact…

偏微分方程分析 · 数学 2017-10-16 Van Duong Dinh