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In this paper, we prove the global well-posedness of the energy-critical nonlinear Schr\"odinger equations on the torus $\mathbb{T}^{d}$ for general dimensions. This result is new for dimensions $d\ge5$, extending previous results for…

Analysis of PDEs · Mathematics 2024-11-28 Beomjong Kwak

We consider the cubic non-linear Schr\"odinger equation on general closed (compact without boundary) Riemannian surfaces. The problem is known to be locally well-posed in $H^s(M)$ for $s>1/2$. Global well-posedness for $s\geq 1$ follows…

Analysis of PDEs · Mathematics 2011-11-17 Zaher Hani

We consider the Cauchy problem of the three-dimensional parabolic-elliptic Patlak-Keller-Segel chemotactic model. The initial data is almost a Dirac measure supported on a straight line with mass less than $8\pi$. We prove that if the data…

Analysis of PDEs · Mathematics 2024-02-27 Bowei Tu

We prove global well-posedness for the cubic nonlinear Schr\"odinger equation with nonlinearity concentrated on a homogeneous Poisson process.

Analysis of PDEs · Mathematics 2025-09-11 Benjamin Harrop-Griffiths , Rowan Killip , Monica Visan

In this paper we prove that the 1D Schr\"odinger equation with derivative in the nonlinear term is globally well-posed in $H^{s}$, for $s>\frac12$ for data small in $L^{2}$. To understand the strength of this result one should recall that…

Analysis of PDEs · Mathematics 2007-05-23 J. Colliander , M. Keel , G. Staffilani , H. Takaoka , T. Tao

In this paper we prove global well-posedness and scattering for the defocusing, intercritical nonlinear wave equation in dimensions $d \geq 4$ with radial initial data. We prove this for sharp initial data.

Analysis of PDEs · Mathematics 2023-11-14 Benjamin Dodson

In this paper, we prove global well-posedness for low regularity data for the one dimensional quintic defocusing nonlinear Schr\"odinger equation. We show that a unique solution exists for $u_{0} \in H^{s}(\mathbf{R})$, $s > {8/29}$. This…

Analysis of PDEs · Mathematics 2009-10-22 Benjamin Dodson

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…

Analysis of PDEs · Mathematics 2016-01-20 Yifei Wu

We study the Cauchy problems for the Hartree-type nonlinear Dirac equations with Yukawa-type potential in two and three spatial dimensions. This paper improves our previous results \cite{chohlee,cholee}; we establish global well-posedness…

Analysis of PDEs · Mathematics 2022-04-01 Yonggeun Cho , Seokchang Hong , Kiyeon Lee

We consider a nonlinear $L^2$-critical nonlinear Dirac equation in one space dimension known as the Thirring model. Global well-posedness in $L^2$ for this equation was proved by Candy. Here we prove that the equation is ill posed in $L^p$…

Analysis of PDEs · Mathematics 2020-08-26 Sigmund Selberg , Achenef Tesfahun

We give an elementary proof of the global well-posedness for the critical 2D dissipative quasi-geostrophic equation. The argument is based on a non-local maximum principle involving appropriate moduli of continuity.

Analysis of PDEs · Mathematics 2009-11-11 A. Kiselev , F. Nazarov , A. Volberg

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

The Cauchy problem of the Cahn-Hilliard equations is studied in three-dimensional space. Firstly, we construct its approximate fourth-order parabolic equation, obtaining the existence of solutions by the Aubin-Lions's compactness lemma.…

Analysis of PDEs · Mathematics 2019-04-15 Zhenbang Li , Caifeng Liu

In this article, we consider the global well-posedness to the 3-D incompressible inhomogeneous Navier-Stokes equations with a class of large velocity. More precisely, assuming $a_0 \in \dot{B}_{q,1}^{\frac{3}{q}}(\mathbb{R}^3)$ and…

Analysis of PDEs · Mathematics 2015-10-28 Cuili Zhai , Ting Zhang

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…

Analysis of PDEs · Mathematics 2016-08-14 Daniela De Silva , Nataša Pavlović , Gigliola Staffilani , Nikolaos Tzirakis

In this paper we prove global well-posedness for the defocusing, energy-subcritical, nonlinear wave equation on $\mathbb{R}^{1 + 3}$ with initial data in a critical Besov space. No radial symmetry assumption is needed.

Analysis of PDEs · Mathematics 2021-08-09 Benjamin Dodson

We prove global well-posedness and scattering for the defocusing, cubic NLS on $\mathbb{R}^3$ with initial data in $H^s(\mathbb{R}^3)$ for $s>49/74$. The proof combines the ideas of resonance decomposition in \cite{CKSTT4} and…

Analysis of PDEs · Mathematics 2012-02-14 Qingtang Su

In this paper we prove global well-posedness and scattering for the conformal, defocusing, nonlinear wave equation with radial initial data in the critical Sobolev space, for dimensions $d \geq 4$. This result extends a previous result…

Analysis of PDEs · Mathematics 2023-05-26 Benjamin Dodson

Time global wellposedness in L^p for the Chern-Simons-Dirac equation in 1+1 dimension is discussed.

Analysis of PDEs · Mathematics 2016-01-29 Shuji Machihara , Takayoshi Ogawa

Thanks to an approach inspired from Burq-Lebeau \cite{bule}, we prove stochastic versions of Strichartz estimates for Schr\"odinger with harmonic potential. As a consequence, we show that the nonlinear Schr\"odinger equation with quadratic…

Analysis of PDEs · Mathematics 2016-01-20 Aurélien Poiret , Didier Robert , Laurent Thomann