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In this paper, we mainly study the Cauchy problem for the full compressible Navier-Stokes equations in Sobolev spaces. We establish the global well-posedness of the equations with small initial data by using Friedrich's method and…

Analysis of PDEs · Mathematics 2016-04-20 Jinlu Li , Xiaoping Zhai , Zhaoyang Yin

We study the Derivative Nonlinear Schr\"odinger equation for general initial conditions in weighted Sobolev spaces that can support bright solitons (but excluding spectral singularities). We prove global well-posedness and give a full…

Analysis of PDEs · Mathematics 2017-06-21 Robert Jenkins , Jiaqi Liu , Peter Perry , Catherine Sulem

In this paper, we study the focusing and defocusing energy--subcritical, nonlinear wave equation in $\mathbb{R}^{1+d}$ with radial initial data for $d = 4,5$. We prove that if a solution remains bounded in the critical space on its interval…

Analysis of PDEs · Mathematics 2017-04-06 Casey Rodriguez

In this paper we study the scattering problem for the initial value problem of the generalized Korteweg-de Vries (gKdV) equation. The purpose of this paper is to achieve two primary goals. Firstly, we show small data scattering for (gKdV)…

Analysis of PDEs · Mathematics 2024-08-02 Satoshi Masaki , Jun-ichi Segata

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…

Analysis of PDEs · Mathematics 2025-07-22 Benjamin Harrop-Griffiths , Rowan Killip , Monica Visan

Nowadays we have many methods allowing to exploit the regularising properties of the linear part of a nonlinear dispersive equation (such as the KdV equation, the nonlinear wave or the nonlinear Schroedinger equations) in order to prove…

Analysis of PDEs · Mathematics 2018-12-14 Nikolay Tzvetkov

We study the Derivative Nonlinear Schr\"odinger (DNLS). equation for general initial conditions in weighted Sobolev spaces that can support bright solitons (but exclude spectral singularities corresponding to algebraic solitons). We show…

Analysis of PDEs · Mathematics 2017-10-12 Robert Jenkins , Jiaqi Liu , Peter Perry , Catherine Sulem

We prove that the 3D stable Muskat problem is globally well-posed in the critical Sobolev space $\dot H^2 \cap \dot W^{1,\infty}$ provided that the semi-norm $\Vert f_0 \Vert_{\dot H^{2}}$ is small enough. Consequently, this allows the…

Analysis of PDEs · Mathematics 2024-05-06 Francisco Gancedo , Omar Lazar

We prove that every solution of the focusing energy-critical wave equation with the compactness property is global. We also give similar results for supercritical wave and Schr\"odinger equations.

Analysis of PDEs · Mathematics 2016-12-21 Thomas Duyckaerts , Carlos Kenig , Frank Merle

We study the defocusing stochastic generalized Korteweg-de Vries equations (sgKdV) driven by additive noise, with a focus on mass-critical and supercritical nonlinearities. For integers $k \geq 4$, we establish local well-posedness almost…

Analysis of PDEs · Mathematics 2025-11-11 Engin Başakoğlu , Faruk Temur , Oğuz Yılmaz

We are interested in the cubic Dirac equation in two space dimensions. We establish the small data global existence and sharp pointwise decay results for general cubic nonlinearities without additional structure. We also prove the…

Analysis of PDEs · Mathematics 2023-03-14 Qian Zhang

In this paper, we consider the defocusing nonlinear Schr\"odinger equation in space dimensions $d\geq 4$. We prove that if $u$ is a radial solution which is \emph{priori} bounded in the critical Sobolev space, that is, $u\in L_t^\infty…

Analysis of PDEs · Mathematics 2019-06-12 Chuanwei Gao , Changxing Miao , Jianwei Yang

In this paper, we consider the Cauchy problem for the generalized KP-II equation \begin{eqnarray*} u_{t}-|D_{x}|^{\alpha}u_{x}+\partial_{x}^{-1}\partial_{y}^{2}u+\frac{1}{2}\partial_{x}(u^{2})=0,\alpha\geq4. \end{eqnarray*} The goal of this…

Analysis of PDEs · Mathematics 2018-03-05 Wei Yan , Yongsheng Li , Yimin Zhang

In this paper, we prove the global well-posedness for the 3D rotating Navier-Stokes equations in the critical functional framework. Especially, this result allows to construct global solutions for a class of highly oscillating initial data.

Analysis of PDEs · Mathematics 2013-04-18 Qionglei Chen , Changxing Miao , Zhifei Zhang

We show the sharp global well posedness for the Cauchy problem for the cubic (quartic) non-elliptic derivative Schr\"odinger equations with small rough data in modulation spaces $M^s_{2,1}(\mathbb{R}^n)$ for $n\ge 3$ ($n= 2$). In 2D cubic…

Analysis of PDEs · Mathematics 2012-08-15 Baoxiang Wang

In this article we study the defocusing energy-critical nonlinear wave equation on $\mathbb{R}^4$ with scaling supercritical data. We prove almost sure scattering for randomized initial data in $H^s(\mathbb{R}^4) \times…

Analysis of PDEs · Mathematics 2022-02-11 Martin Spitz

The goal of this article is to discuss a recent conjecture of the two authors, which aims to describe the long time behavior of solutions to one-dimensional dispersive equations with cubic and higher nonlinearities. These problems arguably…

Analysis of PDEs · Mathematics 2023-11-28 Mihaela Ifrim , Daniel Tataru

We consider the cubic-quintic nonlinear Schr{\"o}dinger equation in space dimension up to three. The cubic nonlinearity is thereby focusing while the quintic one is defocusing, ensuring global well-posedness of the Cauchy problem in the…

Analysis of PDEs · Mathematics 2023-12-07 Rémi Carles , Christof Sparber

We investigate the Prandtl-Shercliff model in both two and three dimensions. For the two-dimensional case, we establish global-in-time well-posedness in Sobolev spaces without any structural assumptions on the initial data. Furthermore, we…

Analysis of PDEs · Mathematics 2025-11-05 Wei-Xi Li , Zhan Xu , Anita Yang

The nonlinear wave and Schrodinger equations on Euclidean space of any dimension, with general power nonlinearity and with both the focusing and defocusing signs, are proved to be ill-posed in the Sobolev space of index s whenever the…

Analysis of PDEs · Mathematics 2007-05-23 Michael Christ , James Colliander , Terence Tao