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Related papers: Low regularity global well-posedness for the two-d…

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We study the defocusing energy-critical inhomogeneous nonlinear Schr\"odinger equation \[ i\partial_tu+\Delta u=|x|^{-b}|u|^{\frac{4-2b}{d-2}}u, \qquad (t,x)\in\R\times\R^d, \] with initial data $u_0\in\dot H_x^1(\R^d)$, where $d\ge 3$ and…

Analysis of PDEs · Mathematics 2026-04-21 Bo Yang , Lei Zhang , Bin Liu

We develop the existence, uniqueness, continuity, stability, and scattering theory for energy-critical nonlinear Schr\"odinger equations in dimensions $n \geq 3$, for solutions which have large, but finite, energy and large, but finite,…

Analysis of PDEs · Mathematics 2007-05-23 Terence Tao , Monica Visan

In this paper we prove global existence and global behavior of solutions to quasilinear wave-Klein-Gordon systems in $\mathbb{R}^{1+2}$ with quadratic nonlinearities satisfying the null condition. We consider small, regular and compactly…

Analysis of PDEs · Mathematics 2023-12-07 Qian Zhang

We show that the Maxwell-Klein-Gordon equations in three dimensions are globally well-posed in $H^s_x$ in the Coulomb gauge for all $s > \sqrt{3}/2 \approx 0.866$. This extends previous work of Klainerman-Machedon \cite{kl-mac:mkg} on…

Analysis of PDEs · Mathematics 2010-08-13 Markus Keel , Tristan Roy , Terence Tao

We consider the $L^2$-critical nonlinear Schrodinger equation with an inhomogeneous damping term. We prove that there exists an initial data such that the corresponding solution is global in $H^1(R^d)$ and we give the minimal time of the…

Analysis of PDEs · Mathematics 2017-03-28 Mohamad Darwich

For a genuinely nonlinear $2\times 2$ hyperbolic system of conservation laws, assuming that the initial data have small ${\bf L}^\infty$ norm but possibly unbounded total variation, the existence of global solutions was proved in a…

Analysis of PDEs · Mathematics 2025-05-06 Alberto Bressan , Elio Marconi , Ganesh Vaidya

We consider the global existence and scattering for solutions of magnetic Zakharov system in three-dimensional space. When the initial data is small, we prove the existence of smooth global solutions and scattering results, by combining the…

Analysis of PDEs · Mathematics 2024-02-19 Xiaohong Wang , Lijia Han

We prove a global well-posedness and regularity result of strong solutions to a slightly modified Michelson-Sivashinsky equation in any spatial dimension and in the absence of physical boundaries. Local-in-time well-posedness (and…

Analysis of PDEs · Mathematics 2021-05-17 Hussain Ibdah

In this paper we prove the global existence and uniqueness of the low regularity solutions to the Cauchy problem of quasi-linear wave equations with radial symmetric initial data in three space dimensions. The results are based on the…

Analysis of PDEs · Mathematics 2007-05-23 Yi Zhou , Zhen Lei

In this work, we study some special properties of smoothness concerning to the initial value problem associated with the Zakharov-Kuznetsov-(ZK) equation in the $n-$ dimensional setting, $n\geq 2.$ It is known that the solutions of the ZK…

Analysis of PDEs · Mathematics 2020-08-27 A. J. Mendez

Motivated by an open problem posed by J.P. Hespanha, we extend the notion of Barabanov norm and extremal trajectory to classes of switching signals that are not closed under concatenation. We use these tools to prove that the finiteness of…

Optimization and Control · Mathematics 2016-04-08 Yacine Chitour , Paolo Mason , Mario Sigalotti

The local well-posedness problem for the Maxwell-Klein-Gordon system in Coulomb gauge as well as Lorenz gauge is treated in two space dimensions for data with minimal regularity assumptions. In the classical case of data in $L^2$-based…

Analysis of PDEs · Mathematics 2020-12-29 Hartmut Pecher

In this article we prove short time local well-posedness in low-regularity Sobolev spaces for large data general quasilinear Schr\"odinger equations with a non-trapping assumption. These results represent improvements over the small data…

Analysis of PDEs · Mathematics 2021-09-15 Jeremy L. Marzuola , Jason Metcalfe , Daniel Tataru

A slightly modified variant of the cubic periodic one-dimensional nonlinear Schroedinger equation is shown to admit weak solutions for all initial data in certain function spaces wider than L^2. These solutions depend uniformly continuously…

Analysis of PDEs · Mathematics 2007-05-23 Michael Christ

Consider the mass-critical nonlinear Schr\"odinger equations in both focusing and defocusing cases for initial data in $L^2$ in space dimension N. By Strichartz inequality, solutions to the corresponding linear problem belong to a global…

Analysis of PDEs · Mathematics 2010-07-05 Thomas Duyckaerts , Frank Merle , Svetlana Roudenko

We study the Klein-Gordon-Zakharov system in two spatial dimensions, an important model in plasma physics. For small, smooth, and spatially localized initial data, we establish the global existence of solutions and characterize their sharp…

Analysis of PDEs · Mathematics 2025-09-04 Shijie Dong , Zihua Guo , Kuijie Li

We establish the global existence and the asymptotic behavior for the 2D incompressible isotropic elastodynamics for sufficiently small, smooth initial data in the Eulerian coordinates formulation.The main tools used to derive the main…

Analysis of PDEs · Mathematics 2016-11-17 Xuecheng Wang

We consider the initial value problem for a system of cubic nonlinear Schr\"odinger equations with different masses in one space dimension. Under a suitable structural condition on the nonlinearity, we will show that the small amplitude…

Analysis of PDEs · Mathematics 2016-10-04 Donghyun Kim

Consider the Klein-Gordon-Zakharov equations in $\mathbb{R}^{1+2}$, and we are interested in establishing the small global solution to the equations and in investigating the pointwise asymptotic behavior of the solution. The…

Analysis of PDEs · Mathematics 2021-02-24 Shijie Dong

We consider the Klein-Gordon-Schr\"odinger system \begin{align*} i \partial_t \psi + \Delta \psi & = \phi^2 \psi - \phi \psi \\ (\Box +1)\phi & = -2|\psi|^2 \phi + |\psi|^2 \end{align*} with additional cubic terms and Cauchy data $$ \psi(0)…

Analysis of PDEs · Mathematics 2019-10-16 Hartmut Pecher