中文
相关论文

相关论文: Strichartz Estimates for Schr\"odinger Equations w…

200 篇论文

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

In this note we study the eigenvalue problem for a quadratic form associated with Strichartz estimates for the Schr\"{o}dinger equation, proving in particular a sharp Strichartz inequality for the case of odd initial data. We also describe…

经典分析与常微分方程 · 数学 2022-02-08 Felipe Gonçalves , Don Zagier

In this article we study the Schr\"odinger equation associated with Harmonic oscillator in the form of Strichartz type inequality. We give simple proofs for Strichartz type inequalities using purely the $L^2 \to L^p$ operator norm estimates…

偏微分方程分析 · 数学 2022-09-29 P Jitendra Kumar Senapati , Pradeep Boggarapu

We address the Cauchy problem for a nonlinear Schr{\"o}dinger equation where the dispersion is modulated by a deterministic noise. The noise is understood as the derivative of a self-affine function of order H $\in$ (0, 1). Due to the…

偏微分方程分析 · 数学 2018-02-08 Romain Duboscq

In this paper we focus on the validity of some fundamental estimates for time-degenerate Schr\"{o}dinger-type operators. On one hand we derive global homogeneous smoothing estimates for operators of any order by means of suitable comparison…

偏微分方程分析 · 数学 2024-02-19 Serena Federico , Michael Ruzhansky

We prove generalized Strichartz estimates for wave and massless Dirac equations in Aharonov-Bohm magnetic fields. Following a well established strategy to deal with scaling critical perturbations of dispersive PDEs, we make use of Hankel…

偏微分方程分析 · 数学 2020-08-04 Federico Cacciafesta , Zhiqing Yin , Junyong Zhang

The purpose of this paper is to study the validity of global-in-time Strichartz estimates for the Schr\"odinger equation on $\mathbb{R}^n$, $n\ge3$, with the negative inverse-square potential $-\sigma|x|^{-2}$ in the critical case…

偏微分方程分析 · 数学 2017-05-09 Haruya Mizutani

Let $G=-\Delta-|x|^2\partial_{t}^2$ denote the Grushin operator on $\mathbb{R}^{n+1}$. The aim of this paper is two fold. In the first part, due to the non-dispersive phenomena of the Grushin-Schr\"odinger equation on $\mathbb{R}^{n+1}$, we…

偏微分方程分析 · 数学 2023-06-21 Sunit Ghosh , Shyam Swarup Mondal , Jitendriya Swain

In this paper we consider inhomogeneous Strichartz estimates in the mixed norm spaces which are given by taking temporal integration before spatial integration. We obtain some new estimates, and discuss about the necessary conditions.

偏微分方程分析 · 数学 2013-11-20 Sanghyuk Lee , Ihyeok Seo

Let $\mathcal{L}$ be the sub-Laplacian on H-type groups and $\phi: \mathbb{R}^+ \to \mathbb{R}$ be a smooth function. The primary objective of the paper is to study the decay estimate for a class of dispersive semigroup given by…

偏微分方程分析 · 数学 2024-07-10 Manli Song , Jinggang Tan

We consider the stochastic NLS with nonlinear Stratonovic noise for initial values in $L^2(R^d)$ and prove local existence and uniqueness of a mild solution for subcritical and critical nonlinearities. The proof is based on deterministic…

概率论 · 数学 2017-09-18 Fabian Hornung

We study numerical schemes for Stochastic Partial Differential Equations (SPDEs). We introduce a general method of proof of non-asymptotic uniform in time error bounds on numerical integrators for SPDEs, ensuring the schemes capture both…

数值分析 · 数学 2026-03-20 Can Huang , Michela Ottobre , Gideon Simpson

We develop an abstract perturbation theory for the orthonormal Strichartz estimates, which were first studied by Frank-Lewin-Lieb-Seiringer. The method used in the proof is based on the duality principle and the smooth perturbation theory…

数学物理 · 物理学 2023-12-14 Akitoshi Hoshiya

This paper presents an extension of stochastic gradient descent for the minimization of Lipschitz continuous loss functions. Our motivation is for use in non-smooth non-convex stochastic optimization problems, which are frequently…

最优化与控制 · 数学 2022-10-05 Michael R. Metel , Akiko Takeda

We prove sharper Strichartz estimates than expected from theoptimal dispersion bounds.

偏微分方程分析 · 数学 2016-12-23 Oana Ivanovici , Gilles Lebeau , Fabrice Planchon

We prove a sharp, global-in-time Strichartz estimate for the Schr\"odinger equation on the cylinder $\mathbb{R}\times\mathbb{T}$.

偏微分方程分析 · 数学 2021-02-03 Alex Barron , Michael Christ , Benoit Pausader

We prove Strichartz estimates (both regular and reversed) for a scattering state to the wave equation with a charge transfer Hamiltonian in $\mathbb{R}^{3}$: \[ \partial_{tt}u-\Delta u+\sum_{j=1}^{m}V_{j}\left(x-\vec{v}_{j}t\right)u=0. \]…

偏微分方程分析 · 数学 2018-09-05 Gong Chen

The classical Strichartz estimates for the free Schr\"odinger propagator have recently been substantially generalised to estimates of the form \[ \bigg\|\sum_j\lambda_j|e^{it\Delta}f_j|^2\bigg\|_{L^p_tL^q_x}\lesssim\|\lambda\|_{\ell^\alpha}…

泛函分析 · 数学 2017-08-21 Neal Bez , Younghun Hong , Sanghyuk Lee , Shohei Nakamura , Yoshihiro Sawano

We consider the gravity-capillary waves in any dimension and in fluid domains with general bottoms. Using the paradiferential reduction established in the companion paper, we prove Strichartz estimates for solutions to this problem, at a…

偏微分方程分析 · 数学 2015-08-03 Thibault de Poyferre , Quang Huy Nguyen

This paper proves Strichartz estimates for the Schrodinger Equation with a potential term and white noise dispersion in dimension $1$. We also explore dispersive estimates using previous results in the field.

偏微分方程分析 · 数学 2024-10-08 Abhinav Goel