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We consider the Cauchy problem of a system of quadratic derivative nonlinear Schr\"odinger equations which was introduced by M. Colin and T. Colin (2004) as a model of laser-plasma interaction. For the nonperiodic case, the author proved…

偏微分方程分析 · 数学 2024-07-09 Hiroyuki Hirayama

We consider the Cauchy problem of a system of quadratic derivative nonlinear Schr\"odinger equations which was introduced by M. Colin and T. Colin (2004) as a model of laser-plasma interaction. For the nonperiodic setting, the authors…

偏微分方程分析 · 数学 2025-07-11 Hiroyuki Hirayama , Shinya Kinoshita , Mamoru Okamoto

In the present paper, we consider the Cauchy problem of nonlinear Schr\"odinger equations with a derivative nonlinearity which depends only on $\bar{u}$. The well-posedness of the equation at the scaling subcritical regularity was proved by…

偏微分方程分析 · 数学 2018-06-08 Hiroyuki Hirayama

In the present paper, we consider the Cauchy problem of the system of quadratic derivative nonlinear Schr\"odinger equations. This system was introduced by M. Colin and T. Colin (2004). The first and second authors obtained some…

偏微分方程分析 · 数学 2020-07-13 Hiroyuki Hirayama , Shinya Kinoshita , Mamoru Okamoto

In this paper, we consider the Cauchy problem of the system of quadratic derivative nonlinear Schr\"odinger equations introduced by Colin and Colin (2004). We determine an almost optimal Sobolev regularity where the smooth flow map of the…

偏微分方程分析 · 数学 2024-09-12 Hiroyuki Hirayama , Shinya Kinoshita , Mamoru Okamoto

We consider the Cauchy problem for a system of quadratic derivative nonlinear Schr\"odinger equations introduced by M. Colin and T. Colin (2004) as a model of laser-plasma interaction. Under the condition that the flow map fails to be twice…

偏微分方程分析 · 数学 2025-06-16 Kohei Akase

In the present paper, we consider the Cauchy problem of fourth order nonlinear Schr\"odinger type equations with a derivative nonlinearity. In one dimensional case, we prove that the fourth order nonlinear Schr\"odinger equation with the…

偏微分方程分析 · 数学 2018-05-17 Hiroyuki Hirayama , Mamoru Okamoto

We consider the Cauchy problem for a quadratic derivative nonlinear Schr\"odinger equation whose nonlinearity is a linear combination of $\partial_x (u^2)$ and $\partial_x (|u|^2)$. We prove the local well-posedness in the $L^2$-based…

偏微分方程分析 · 数学 2023-12-29 Kohei Akase

In this work I study the well-posedness of the Cauchy problem associated with the coupled Schr\"odinger equations {with quadratic nonlinearities}, which appears modeling problems in nonlinear optics. I obtain the local well-posedness for…

偏微分方程分析 · 数学 2018-07-03 Isnaldo Isaac

The Cauchy problem for the Kadomtsev-Petviashvili-II equation (u_t+u_{xxx}+uu_x)_x+u_{yy}=0 is considered. A small data global well-posedness and scattering result in the scale invariant, non-isotropic, homogeneous Sobolev space \dot…

偏微分方程分析 · 数学 2010-11-03 Martin Hadac , Sebastian Herr , Herbert Koch

In this paper we study the Cauchy problem for the elliptic and non-elliptic derivative nonlinear Schr\"odinger equations in higher spatial dimensions ($n\geq 2$) and some global well-posedness results with small initial data in critical…

偏微分方程分析 · 数学 2010-06-14 Baoxiang Wang , Yuzhao Wang

This paper is concerned with the Cauchy problem of the quadratic nonlinear Schr\"{o}dinger equation in $\mathbb{R} \times \mathbb{R}^2$ with the nonlinearity $\eta |u|^2$ where $\eta \in \mathbb{C} \setminus \{0\}$ and low regularity…

偏微分方程分析 · 数学 2022-09-27 Hiroyuki Hirayama , Shinya Kinoshita , Mamoru Okamoto

In the present paper, we consider the Cauchy problem of the system of quadratic derivative nonlinear Schr\"odinger equations for the spatial dimension $d=2$ and $3$. This system was introduced by M. Colin and T. Colin (2004). The first…

偏微分方程分析 · 数学 2024-09-12 Hiroyuki Hirayama , Shinya Kinoshita

For $n\geq 3$, we study the Cauchy problem for the fourth order nonlinear Schr\"{o}dinger equations, for which the existence of the scattering operators and the global well-posedness of solutions with small data in Besov spaces…

偏微分方程分析 · 数学 2008-10-29 Hua Zhang

We consider the Cauchy problem for the defocusing cubic nonlinear Schr\"odinger equation in four space dimensions and establish almost sure local well-posedness and conditional almost sure scattering for random initial data in…

偏微分方程分析 · 数学 2019-02-07 Benjamin Dodson , Jonas Luhrmann , Dana Mendelson

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 study the Cauchy problem for the Zakharov system in spatial dimension $d\ge 4$ with initial datum $(u(0), n(0), \partial_t n(0)) \in H^k(\mathbb{R}^d) \times \dot{H}^l(\mathbb{R}^d)\times \dot{H}^{l-1}(\mathbb{R}^d)$. According to…

偏微分方程分析 · 数学 2017-05-22 Isao Kato , Kotaro Tsugawa

In this article, we study the low-regularity Cauchy problem of a one dimensional quadratic Schrodinger system with coupled parameter $\alpha\in (0, 1)$. When $\frac{1}{2}<\alpha<1$,we prove the global well-posedness in $H^s(\mathbb{R})$…

偏微分方程分析 · 数学 2022-06-14 Chenmin Sun

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…

偏微分方程分析 · 数学 2019-04-29 Xing Cheng

In this article, we prove the global well-posedness and scattering of the cubic focusing infinite coupled nonlinear Schr\"odinger system on $\mathbb{R}^2$ below the threshold in $L_x^2h^1(\mathbb{R}^2\times \mathbb{Z})$. We first establish…

偏微分方程分析 · 数学 2022-02-23 Xing Cheng , Zihua Guo , Gyeongha Hwang , Haewon Yoon
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