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We study a derivative nonlinear Schr\"{o}dinger equation, allowing non-integer powers in the nonlinearity, $|u|^{2\sigma} u_x$. Making careful use of the energy method, we are able to establish short-time existence of solutions with initial…

偏微分方程分析 · 数学 2014-01-29 David M. Ambrose , Gideon Simpson

We consider the nonlinear Schr\"odinger equation with periodic dispersion management. We first establish global-in-time Strichartz estimates for the underlying linear equation with suitable dispersion maps. As an application, we establish a…

偏微分方程分析 · 数学 2023-05-11 Jason Murphy , Tim Van Hoose

We consider the Cauchy problem of the cubic nonlinear Schr\"odinger equation (NLS) on $\mathbb R^d$, $d \geq 3$, with random initial data and prove almost sure well-posedness results below the scaling critical regularity $s_\text{crit} =…

偏微分方程分析 · 数学 2015-07-07 Árpád Bényi , Tadahiro Oh , Oana Pocovnicu

We prove global well-posedness for low regularity data for the one dimensional quintic defocusing nonlinear Schr\"odinger equation. Precisely we show that a unique and global solution exists for initial data in the Sobolev space…

偏微分方程分析 · 数学 2016-08-14 Daniela De Silva , Nataša Pavlović , Gigliola Staffilani , Nikolaos Tzirakis

We study the Cauchy problem for the cubic nonlinear Schroedinger equation, perturbed by (higher order) dissipative nonlinearities. We prove global in-time existence of solutions for general initial data in the energy space. In particular we…

偏微分方程分析 · 数学 2009-11-24 Paolo Antonelli , Christof Sparber

We study the well posedness of the nonlinear Schr\"odinger (NLS) equation with a point interaction and power nonlinearity in dimension two and three. Behind the autonomous interest of the problem, this is a model of the evolution of so…

偏微分方程分析 · 数学 2021-01-05 Claudio Cacciapuoti , Domenico Finco , Diego Noja

We study the Cauchy problem for the $1$-d periodic fractional Schr\"odinger equation with cubic nonlinearity. In particular we prove local well-posedness in Sobolev spaces, for solutions evolving from rough initial data. In addition we show…

偏微分方程分析 · 数学 2013-12-19 S. Demirbas , M. B. Erdoğan , N. Tzirakis

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 Cauchy problem for the derivative nonlinear Schr\"odinger equation with periodic boundary condition is considered. Local well-posedness for periodic initial data u_0 in the space ^H^s_r, defined by the norms ||u_0||_{^H^s_r}=||<xi>^s…

偏微分方程分析 · 数学 2009-04-16 A. Grünrock , S. Herr

We consider the Schr\"odinger equation with no radial assumption on real hyperbolic spaces. We obtain sharp dispersive and Strichartz estimates for a large family of admissible pairs. As a first consequence, we get strong well-posedness…

偏微分方程分析 · 数学 2010-01-07 Jean-Philippe Anker , Vittoria Pierfelice

We consider the cubic defocusing nonlinear Schr\"odinger equation in one dimension with the nonlinearity concentrated at a single point. We prove global well-posedness in the scaling-critical space $L^2(\mathbb{R})$ and scattering for all…

偏微分方程分析 · 数学 2025-07-22 Benjamin Harrop-Griffiths , Rowan Killip , Monica Visan

This work studies the initial-boundary value problem for both the linear Schr\"odinger equation and the cubic nonlinear Schr\"odinger equation on the half-space in higher dimensions ($n\ge 2$). First, the forced linear problem is solved on…

偏微分方程分析 · 数学 2024-11-26 A. Alexandrou Himonas , Fangchi Yan

We prove global existence and stability of solution to the mass-critical stochastic nonlinear Schr\"odinger equation in $d=1$ at $L^2$ regularity. Our construction starts with the existence of solution to the truncated subcritical problem.…

偏微分方程分析 · 数学 2022-02-09 Chenjie Fan , Weijun Xu

We study the cubic nonlinear fractional Schr\"odinger equation with L\'evy indices $\frac{4}{3}<\alpha< 2$ posed on the half-line. More precisely, we define the notion of a solution for this model and we obtain a result of…

偏微分方程分析 · 数学 2019-11-20 Márcio Cavalcante , Gerardo Huaroto

We consider the Cauchy problem of nonlinear Schr\"odinger equations (NLS) with almost periodic functions as initial data. We first prove that, given a frequency set $\pmb{\omega} =\{\omega_j\}_{j = 1}^\infty$, NLS is local well-posed in the…

偏微分方程分析 · 数学 2015-02-10 Tadahiro Oh

As a continuation of the previous work \cite{Wu}, we consider the global well-posedness for the derivative nonlinear Schr\"odinger equation. We prove that it is globally well-posed in energy space, provided that the initial data $u_0\in…

偏微分方程分析 · 数学 2016-01-20 Yifei Wu

We consider non-gauge-invariant cubic nonlinear Schr\"odinger equations in one space dimension. We show that initial data of size $\varepsilon$ in a weighted Sobolev space lead to solutions with sharp $L_x^\infty$ decay up to time…

偏微分方程分析 · 数学 2017-07-19 Jason Murphy , Fabio Pusateri

Consider the mass-critical nonlinear Schr\"odinger equations in both focusing and defocusing cases for initial data in $L^2$ in space dimension N. By Strichartz inequality, solutions to the corresponding linear problem belong to a global…

偏微分方程分析 · 数学 2010-07-05 Thomas Duyckaerts , Frank Merle , Svetlana Roudenko

We prove the global existence of solution to the small data mass critical stochastic nonlinear Schr\"{o}dinger equation in $d=1$. We further show the stability of the solution under perturbation of initial data. Our construction starts with…

概率论 · 数学 2018-08-27 Chenjie Fan , Weijun Xu

We consider the stochastic nonlinear Schr\"odinger equations (SNLS) posed on $d$-dimensional tori with either additive or multiplicative stochastic forcing. In particular, for the one-dimensional cubic SNLS, we prove global well-posedness…

偏微分方程分析 · 数学 2018-03-08 Kelvin Cheung , Razvan Mosincat