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We prove global well-posedness and scattering in $H^1$ for the defocusing nonlinear Schr\"{o}dinger equations \begin{equation*} \begin{cases} &(i\partial_t+\Delta_\g)u=u|u|^{2\sigma}; &u(0)=\phi, \end{cases} \end{equation*} on the…

Analysis of PDEs · Mathematics 2008-01-21 Alexandru D. Ionescu , Gigliola Staffilani

We consider the Cauchy problem for the nonlinear Schr\"odinger equation with double nonlinearities with opposite sign, with one term is mass-critical and the other term is mass-supercritical and energy-subcritical, which includes the famous…

Analysis of PDEs · Mathematics 2019-04-29 Xing Cheng

In this paper, we consider the Cauchy's problem of global existence and scattering behavior of small, smooth, and localized solutions of cubic fractional Schr\"odinger equations in one dimension, \begin{equation*} \mathrm{i} \partial_t u-…

Analysis of PDEs · Mathematics 2019-11-05 Huali Zhang , Shiliang Zhao

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…

Analysis of PDEs · Mathematics 2019-09-05 Grace Liu

Motivated by the geometric reduction of Cauchy--Szeg\H{o} projections on quadratic surfaces of higher codimension (Nagel--Ricci--Stein, 2001) and recent developments on the real-variable theory adapted to twisted multiparameter structures…

Classical Analysis and ODEs · Mathematics 2026-04-03 Ji Li , Chong-Wei Liang , Chaojie Wen , Qingyan Wu

In this paper, we study Strichartz estimates for the Schr\"odinger equation on a metric cone $X$, where $X=C(Y)=(0,\infty)_r\times Y$ and the cross section $Y$ is a $(n-1)$-dimensional closed Riemannian manifold $(Y,h)$. For the metric $g$…

Analysis of PDEs · Mathematics 2024-10-01 Junyong Zhang , Jiqiang Zheng

In this paper, we derive a strong convergence rate of spatial finite difference approximations for both focusing and defocusing stochastic cubic Schr\"odinger equations driven by a multiplicative $Q$-Wiener process. Beyond the uniform…

Probability · Mathematics 2017-03-29 Jianbo Cui , Jialin Hong , Zhihui Liu

The aim of this paper is to show the small data scattering for 2D ICQNLS: $$iu_t=-\Delta u + K_1(x)|u|^2u+K_2(x)|u|^4u.$$ Under the assumption that $\left| \partial^j K_l \right| \lesssim |x|^{b_l -j}$ for $j=0, 1, 2, l=1, 2$ and $0 \le b_l…

Analysis of PDEs · Mathematics 2019-06-07 Yonggeun Cho , Kiyeon Lee

We establish the probabilistic well-posedness of the nonlinear Schr\"odinger equation on the $2d$ sphere $\mathbb{S}^{2}$. The initial data are distributed according to Gaussian measures with typical regularity $H^{s}(\mathbb{S}^{2})$, for…

Analysis of PDEs · Mathematics 2025-06-25 Nicolas Burq , Nicolas Camps , Chenmin Sun , Nikolay Tzvetkov

We consider the problem of large data scattering for the defocusing cubic nonlinear Schr\"odinger equation on $\mathbb{R}^2$ $\times$ $\mathbb{T}^2$. This equation is critical both at the level of energy and mass. The key ingredients…

Analysis of PDEs · Mathematics 2019-11-04 Zehua Zhao

In this work, we consider the following generalized derivative nonlinear Schr\"odinger equation \begin{align*} i\partial_t u+\partial_{xx} u +i |u|^{2\sigma}\partial_x u=0, \quad (t,x)\in \mathbb R\times \mathbb R. \end{align*} We prove…

Analysis of PDEs · Mathematics 2020-06-15 Ruobing Bai , Yifei Wu , Jun Xue

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…

Analysis of PDEs · Mathematics 2021-10-14 Xiaofen Gao , Junyong Zhang , Jiqiang Zheng

In this paper, we study the global well-posedness and scattering of 3D defocusing, cubic Schr\"odinger equation. Recently, Dodson [arXiv:2004.09618] studied the global well-posedness in a critical Sobolev space $\dot{W}^{11/7,7/6}$. In this…

Analysis of PDEs · Mathematics 2024-10-10 Jia Shen , Yifei Wu

In this article, we will show the global wellposedness and scattering of the cubic defocusing nonlinear Schr\"odinger equation on waveguide $\mathbb{R}^2\times \mathbb{T}$ in $H^1$. We first establish the linear profile decomposition in…

Analysis of PDEs · Mathematics 2017-05-03 Xing Cheng , Zihua Guo , Kailong Yang , Lifeng Zhao

We consider the 1D nonlinear Schr\"odinger equation with focusing point nonlinearity. "Point" means that the pure-power nonlinearity has an inhomogeneous potential and the potential is the delta function supported at the origin. This…

Analysis of PDEs · Mathematics 2019-04-22 Riccardo Adami , Reika Fukuizumi , Justin Holmer

In this paper, we study the defocusing energy-critical nonlinear Schr\"odinger equations $$ i\partial_t u + \Delta u = |u|^{\frac{4}{d-2}} u. $$ When $d=3,4$, we prove the almost sure scattering for the equations with non-radial data in…

Analysis of PDEs · Mathematics 2021-11-24 Jia Shen , Avy Soffer , Yifei Wu

We consider the mass-subcritical nonlinear Schr\"odinger equation in all space dimensions with focusing or defocusing nonlinearity. For such equations with critical regularity $s_c\in(\max\{-1,-\frac{d}{2}\},0)$, we prove that any solution…

Analysis of PDEs · Mathematics 2017-07-19 Rowan Killip , Satoshi Masaki , Jason Murphy , Monica Visan

We study the Cauchy problem for the generalized elliptic and non-elliptic derivative nonlinear Schrodinger equations, the existence of the scattering operators and the global well posedness of solutions with small data in Besov spaces and…

Analysis of PDEs · Mathematics 2008-03-19 Baoxiang Wang

In this paper, we prove the decay and scattering in the energy space for nonlinear Schr\"odinger equations with regular potentials in $\Bbb R^d$ namely, $i{\partial _t}u + \Delta u - V(x)u + \lambda |u|^{p - 1}u = 0$. We will prove decay…

Analysis of PDEs · Mathematics 2017-03-13 Ze Li , Lifeng Zhao

We investigate the defocusing inhomogeneous nonlinear Schr\"odinger equation $$ i \partial_tu + \Delta u = |x|^{-b} \left({\rm e}^{\alpha|u|^2} - 1- \alpha |u|^2 \right) u, \quad u(0)=u_0, \quad x \in \mathbb{R}^2, $$ with $0<b<1$ and…

Analysis of PDEs · Mathematics 2018-10-23 Abdelwahab Bensouilah , Van Duong Dinh , Mohamed Majdoub