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We consider the dispersion managed nonlinear Schr\"dinger equations with quintic and cubic nonlinearities in one and two dimensions, respectively. We prove the global well-posedness and scattering in $L_x^2$ for small initial data employing…

偏微分方程分析 · 数学 2024-01-31 Mi-Ran Choi , Kiyeon Lee , Young-Ran Lee

The primary objective in this paper is to give an answer to an open question posed by J. A. Barcel\'o, J. M. Bennett, A. Carbery, A. Ruiz and M. C. Vilela concerning the problem of determining the optimal range on $s\geq0$ and $p\geq1$ for…

偏微分方程分析 · 数学 2019-07-24 Youngwoo Koh , Ihyeok Seo

The objective of this paper is to report on recent progress on Strichartz estimates for the Schr\"odinger equation and to present the state-of-the-art. These estimates have been obtained in Lebesgue spaces, Sobolev spaces and, recently, in…

偏微分方程分析 · 数学 2018-07-23 Elena Cordero , Davide Zucco

We prove smoothing estimates for Schr\"odinger equations $i\partial_t \phi+\partial_x (a(x) \partial_x \phi) =0$ with $a(x)\in \mathrm{BV}$, the space of functions with bounded total variation, real, positive and bounded from below. We then…

偏微分方程分析 · 数学 2007-05-23 N. Burq , F. Planchon

In this article, we establish scale-invariant Strichartz estimates for the Schr\"odinger equation on arbitrary compact globally symmetric spaces and some bilinear Strichartz estimates on products of rank-one spaces. As applications, we…

偏微分方程分析 · 数学 2023-12-27 Yunfeng Zhang

The spatially periodic initial problem and Cauchy problem for nonlinear Schr\"odinger equations are considered. The existence and uniqueness of global solution with infinite smooth initial data $u_0$, i.e. $u_0,\;|u_0|^{2p}u_0\in…

偏微分方程分析 · 数学 2020-11-21 Yongqian Han

We prove L^1 --> L^\infty estimates for the linear Schroedinger equation in three dimensions. The potential is assumed to belong to certain L^p spaces, but no pointwise decay estimates and no additional regularity is required.

偏微分方程分析 · 数学 2007-05-23 Michael Goldberg

We prove global existence for the one-dimensional cubic non-linear Schr\"odinger equation in modulation spaces $M_{p,p'}$ for $p$ sufficiently close to $2$. In contrast to known results, our result requires no smallness condition on initial…

偏微分方程分析 · 数学 2019-12-18 Leonid Chaichenets , Dirk Hundertmark , Peer Kunstmann , Nikolaos Pattakos

In this paper we first establish global pointwise time-space estimates of the fundamental solution for Schr\"odinger equations, where the symbol of the spatial operator is a real non-degenerate elliptic polynomial. Then we use such…

偏微分方程分析 · 数学 2015-06-09 JinMyong Kim , Anton Arnold , Xiaohua Yao

We consider the Schr\"odinger equation on a half space in any dimension with a class of nonhomogeneous boundary conditions including Dirichlet, Neuman and the so-called transparent boundary conditions. Building upon recent local in time…

偏微分方程分析 · 数学 2017-02-23 Corentin Audiard

In this paper, we studied the space-time estimates for the solution to the Schr\"odinger equation. By polynomial partitioning, induction arguments, bilinear to linear arguments and broad norm estimates, we set up several maximal estimates…

经典分析与常微分方程 · 数学 2024-02-22 Junfeng Li , Changxing Miao , Ankang Yu

In this work we consider an example of a linear time-degenerate Schr\"odinger operator. We show that with the appropriate assumptions the operator satisfies a Kato smoothing effect. We also show that the solutions to the nonlinear initial…

偏微分方程分析 · 数学 2022-01-20 Serena Federico , Gigliola Staffilani

We consider a version of the stationary phase method in one dimension of A. Erd\'elyi, allowing the phase to have stationary points of non-integer order and the amplitude to have integrable singularities. After having completed the original…

偏微分方程分析 · 数学 2015-12-21 F. Ali Mehmeti , F. Dewez

In this note we consider the Schr\"odinger equation on compact manifolds equipped with possibly degenerate metrics. We prove Strichartz estimates with a loss of derivatives. The rate of loss of derivatives depends on the degeneracy of…

偏微分方程分析 · 数学 2015-01-20 Haruya Mizutani , Nikolay Tzvetkov

In this paper we show that the local Kato type smoothing estimates are essentially equivalent to the global Kato type smoothing estimates for some class of dispersive equations including the Schr\"odinger equation. From this we immediately…

经典分析与常微分方程 · 数学 2019-07-12 Jungjin Lee

We consider a family of surfaces of revolution, each with a single periodic geodesic which is degenerately unstable. We prove a local smoothing estimate for solutions to the linear Schr\"odinger equation with a loss that depends on the…

偏微分方程分析 · 数学 2012-01-30 Hans Christianson , Jared Wunsch

We prove Strichartz estimates for the Schroedinger equation with an electromagnetic potential, in dimension $n\geq3$. The decay and regularity assumptions on the potentials are almost critical, i.e., close to the Coulomb case. In addition,…

偏微分方程分析 · 数学 2009-01-27 Piero D'Ancona , Luca Fanelli , Luis Vega , Nicola Visciglia

In this paper we consider the long time behavior of solutions to the cubic nonlinear Schr\"odinger equation posed on the spatial domain $\mathbb{R}\times\mathbb{T}^{d}$, $1\leq d\leq4$. For sufficiently small, smooth, decaying data we prove…

偏微分方程分析 · 数学 2019-09-05 Grace Liu

We study the decay and smoothness of solutions of the dispersion managed non-linear Schr\"odinger equation in the case of zero residual dispersion. Using new x-space versions of bilinear Strichartz estimates, we show that the solutions are…

数学物理 · 物理学 2008-04-24 Dirk Hundertmark , Young-Ran Lee

We show the existence of weak solutions in the extended sense of the Cauchy problem for the cubic nonlinear Schr\"odinger equation in the modulation space $M_{p,q}^{s}(\mathbb R)$ where $1\leq q\leq2$, $2\leq p<\frac{10q'}{q'+6}$ and…

偏微分方程分析 · 数学 2019-12-16 Leonid Chaichenets , Dirk Hundertmark , Peer Kunstmann , Nikolaos Pattakos