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This note presents a new proof of the well-known Strichartz estimates for the Schr\"odinger equation in $2+1$ dimensions, building on ideas from our recent work \cite{MO}.

经典分析与常微分方程 · 数学 2023-02-23 Camil Muscalu , Itamar Oliveira

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 introduce a class of (possibly) degenerate dispersive equations with a drift. We prove that, under the H\"ormander hypoellipticity condition, the relevant Cauchy problem can be uniquely solved in the Schwartz class, and the solution…

偏微分方程分析 · 数学 2025-09-30 Nicola Garofalo , Alessandra Lunardi

We study the Cauchy problem for Schr\"odinger type stochastic partial differential equations with uniformly bounded coefficients on a curved space. We give conditions on the coefficients, on the drift and diffusion terms, on the Cauchy…

偏微分方程分析 · 数学 2022-08-29 Alessia Ascanelli , Sandro Coriasco , André Süß

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

We consider Schr\"odinger equation with a non-degenerate metric on the Euclidean space. We study local in time Strichartz estimates for the Schr\"odinger equation without loss of derivatives including the endpoint case. In contrast to the…

偏微分方程分析 · 数学 2017-08-08 Kouichi Taira

In this paper, the existence, uniqueness and regularity properties, Strichartz type estimates for solution of multipoint Cauchy problem for linear and nonlinear Schr\"odinger equations with general elliptic leading part is obtained.

偏微分方程分析 · 数学 2018-04-30 Veli Shakhmurov

We extend the local well-posedness theory for the Cauchy problem associated to a degenerated Zakharov system. The new main ingredients are the derivation of Strichartz and maximal function norm estimates for the linear solution of a…

偏微分方程分析 · 数学 2013-12-10 Vanessa Barros , Felipe Linares

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

In this paper, we prove new Strichartz estimates for linear Schrodinger equations posed on d-dimensional irrational tori. Then, we use these estimates to prove subcritical and critical local well-posedness results for nonlinear Schrodinger…

偏微分方程分析 · 数学 2014-03-11 Zihua Guo , Tadahiro Oh , Yuzhao Wang

The Cauchy problem is investigated for the parabolic type in the some finite part $[t_0, t_1] \subset [0, \infty)$ of the semi axis $t \in [0, \infty)$ and degenarated to Schrodinger type in the remain part of the same semi axes the second…

数学物理 · 物理学 2007-05-23 Hikmat I. Ahmadov

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

The aim of this article is to give the well-posedness results for the Cauchy problem of the nonlinear Schr\"odinger equation with power type nonlinearities on H-type groups. To do this, we prove the dispersive estimate and Strichartz…

偏微分方程分析 · 数学 2025-10-02 Hiroyuki Hirayama , Yasuyuki Oka

We are concerned with the Dirichlet problem for a class of Hessian type equations. Applying some new methods we are able to establish the $C^2$ estimates for an approximating problem under essentially optimal structure conditions. Based on…

偏微分方程分析 · 数学 2016-05-06 Heming Jiao , Tingting Wang

We study second-order stochastic parabolic equations in a cylindrical domain with homogeneous Dirichlet boundary conditions. Under a natural compatibility condition on the gradient-type noise, we establish global Schauder estimates in…

概率论 · 数学 2026-05-19 Kai Du

We consider the Cauchy problem for Schr\"odinger type operators. Under a suitable decay assumption on the imaginary part of the first order coefficients we prove well-posedness of the Cauchy problem in Gelfand-Shilov classes. We also…

偏微分方程分析 · 数学 2023-09-18 Alexandre Arias Junior

Considering stochastic partial differential equations of parabolic type with random coefficients in vector-valued H\"older spaces, we obtain a sharp Schauder estimate. As an application, the existence and uniqueness of solution to the…

偏微分方程分析 · 数学 2015-09-17 Kai Du , Jiakun Liu

We prove dispersive and Strichartz estimates for Schr\"{o}dinger equations on normal real form symmetric spaces. These estimates apply to the well-posedness and scattering for the nonlinear Schr\"{o}dinger equations.

偏微分方程分析 · 数学 2019-10-17 Anestis Fotiadis , Effie Papageorgiou

The paper study a possibility to recover solutions of Schr\"odinger equations from its time-averages in the setting where the values at the initial time are unknown. This problem can be reformulated as a new boundary value problem where a…

数学物理 · 物理学 2019-06-25 Nikolai Dokuchaev

The paper offers the method of discovering of some class of solutions for the nonlinear Schroedinger equation. An algorithm of constructive solving of the Cauchy periodic problem with a finite-gap initial condition was also obtained.

可精确求解与可积系统 · 物理学 2014-01-20 Vladimir Kotlyarov , Alexander Its
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