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相关论文: Dynamics of the Energy-Critical Nonlinear Schr\"{o…

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In \cite{duck-merle}, T. Duyckaerts and F. Merle studied the variational structure near the ground state solution $W$ of the energy critical NLS and classified the solutions with the threshold energy $E(W)$ in dimensions $d=3,4,5$ under the…

偏微分方程分析 · 数学 2009-02-06 Dong Li , Xiaoyi Zhang

In this paper, we study the Cauchy problem for a quadratic nonlinear Schr\"{o}dinger system in dimension six. In~\cite{GaoMengXuZheng}, the authors classified the behavior of solutions under the energy constraint $E(u) < E(Q)$, where $Q$…

偏微分方程分析 · 数学 2025-05-07 Alex H. Ardila , Liliana Cely , Fanfei Meng

We consider the nonlinear Schr\"odinger equation with focusing quintic and defocusing cubic nonlinearity in three space dimensions: \[ (i\partial_t+\Delta)u = |u|^2 u - |u|^4 u. \] In [18, 23], the authors classified the dynamics of…

偏微分方程分析 · 数学 2025-12-02 Alex H. Ardila , Jason Murphy , Jiqiang Zheng

We consider the radial energy-critical non-linear focusing Schr\"odinger equation in dimension N=3,4,5. An explicit stationnary solution, W, of this equation is known. In a previous work by C. Carlos and F. Merle, the energy E(W) has been…

偏微分方程分析 · 数学 2007-11-01 Thomas Duyckaerts , Frank Merle

We study dynamics of the 4$d$ energy-critical nonlinear Schr\"odinger equation at the ground state energy. Previously, Duyckaerts and Merle [Geom. Funct. Anal. (2009)] proved that any radial solution with kinetic energy less than that of…

偏微分方程分析 · 数学 2025-08-05 Zuyu Ma , Changxing Miao , Jason Murphy , Jiqiang Zheng

In this paper, we continue the study in \cite{MiaoWZ:NLS:3d Combined} to show the scattering and blow-up result of the solution for the nonlinear Schr\"{o}dinger equation with the energy below the threshold $m$ in the energy space…

偏微分方程分析 · 数学 2016-02-18 Changxing Miao , Guixiang Xu , Lifeng Zhao

We consider the long-time dynamics of focusing energy-critical Schr\"odinger equation perturbed by the $\dot{H}^\frac{1}{2}$-critical nonlinearity and with inverse-square potential(CNLS$_a$) in dimensions $d\in\{3,4,5\}$…

偏微分方程分析 · 数学 2024-06-18 Zuyu Ma , Yilin Song , Jiqiang Zheng

The paper studies the uniqueness problem for the one-dimensional Schr\"{o}dinger operator associated with the formal differential expression \begin{equation*} l[u] =-u''+qu + i[(ru)'+ru'], \end{equation*} in the complex Hilbert space…

谱理论 · 数学 2025-12-04 Vladimir Mikhailets , Volodymyr Molyboga

In this paper, we consider the longtime dynamics of the solutions to focusing energy-critical Schr\"odinger equation with a defocusing energy-subcritical perturbation term under a ground state energy threshold in four spatial dimension.…

偏微分方程分析 · 数学 2019-06-25 Changxing Miao , Tengfei Zhang , Jiqiang Zheng

In this paper, we study critical semilinear nonlocal elliptic equations involving the logarithmic Schr\"odinger operator and its fractional pseudo-relativistic counterpart, both arising in quantum models with nonlocal and relativistic…

偏微分方程分析 · 数学 2026-02-10 Huyuan Chen , Rui Chen , Bobo Hua

In the present work we provide a characterization of the ground states of a higher-dimensional quadratic-quartic model of the nonlinear Schr{\"o}dinger class with a combination of a focusing biharmonic operator with either an isotropic or…

斑图形成与孤子 · 物理学 2022-06-22 A. Stefanov , G. A. Tsolias , J. Cuevas-Maraver , P. G. Kevrekidis

We discuss the global existence of solutions to a system of stochastic Schr\"odinger equations with multiplicative noise. Our setting of the quadratic nonlinear terms in dimension 4 is $L^2$-critical. We treat the solutions under the ground…

偏微分方程分析 · 数学 2024-05-01 Masaru Hamano , Shunya Hashimoto , Shuji Machihara

This paper is concerned with a cubic nonlinear Schr\"odinger system modeling the interaction between an optical beam and its third harmonic in a material with Kerr-type nonlinear response. We are mainly interested in the so-called…

偏微分方程分析 · 数学 2025-03-19 Maicon Hespanha , Ademir Pastor

The three-body Schr\"{o}dinger operator in the space of square integrable functions is found to be a certain extension of operators which generate the exponential unitary group containing a subgroup with nilpotent Lie algebra of length…

量子物理 · 物理学 2012-09-13 Rytis Jursenas

In this paper a nonlinear coupled Schrodinger system in the presence of mixed cubic and superlinear power laws is considered. A non standard numerical method is developed to approximate the solutions in higher dimensional case. The idea…

数值分析 · 数学 2018-05-16 Abdurahman F. Aljohani , Anouar Ben Mabrouk

We consider a scaling limit of a nonlinear Schr\"odinger equation (NLS) with a nonlocal nonlinearity showing that it reproduces in the limit of cutoff removal a NLS equation with nonlinearity concentrated at a point. The regularized…

数学物理 · 物理学 2017-07-03 Claudio Cacciapuoti , Domenico Finco , Diego Noja , Alessandro Teta

We investigate the following inhomogeneous nonlinear Schr\"odinger equation in the radial regime, featuring a focusing energy-critical nonlinearity and a defocusing perturbation: $$ i\partial_t u +\Delta u =|x|^{-a} |u|^{p-2} u - |x|^{-b}…

偏微分方程分析 · 数学 2025-02-04 Tianxiang Gou , Mohamed Majdoub , Tarek Saanouni

We investigate the focusing inhomogeneous nonlinear biharmonic Schr\"odinger equation \[ i\partial_t u + \Delta^2 u - |x|^{-b}|u|^p u = 0 \quad \text{on } \mathbb{R} \times \mathbb{R}^N, \] in the energy-critical regime, $p = \frac{8 -…

偏微分方程分析 · 数学 2025-08-06 Carlos M. Guzmán , Sahbi Keraani , Chengbin Xu

The Linear Quadratic Regulator (LQR), which is arguably the most classical problem in control theory, was recently related to kernel methods in (Aubin-Frankowski, SICON, 2021) for finite dimensional systems. We show that this result extends…

最优化与控制 · 数学 2022-10-12 Pierre-Cyril Aubin-Frankowski , Alain Bensoussan

In this article, we consider the dynamics of the energy-critical quadratic nonlinear Schr\"odinger system $\[ \left\{ \begin{aligned} & i u^1_t + \kappa_1 \Delta u^1 = -\overline{u^2}u^3, \\ & i u^2_t + \kappa_2 \Delta u^2 =…

偏微分方程分析 · 数学 2024-01-30 Fanfei Meng , Sheng Wang , Chengbin Xu
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