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We prove global well-posedness and scattering for the massive Dirac-Klein-Gordon system with small and low regularity initial data in dimension two. To achieve this, we impose a non-resonance condition on the masses.

Analysis of PDEs · Mathematics 2025-01-08 Ioan Bejenaru , Vitor Borges

We prove global well-posedness and scattering for the 3D Klein-Gordon-Schr\"odinger system for small radial data in the best known global well-posedness range $(u_0, n_0, n_1)\in L^2\times H^{ -\frac{1}{2} + \epsilon } \times…

Analysis of PDEs · Mathematics 2026-04-14 Vitor Borges , Tiklung Chan

In this paper we study global nonlinear stability for the Dirac-Klein-Gordon system in two and three space dimensions for small and regular initial data. In the case of two space dimensions, we consider the Dirac-Klein-Gordon system with a…

Analysis of PDEs · Mathematics 2023-03-16 Qian Zhang

We obtain conditional results on the global existence and scattering for large solutions of the Dirac-Klein-Gordon system in critical spaces in dimension $1+3$. In particular, for bounded solutions we identify a space-time Lebesgue norm…

Analysis of PDEs · Mathematics 2018-06-25 Timothy Candy , Sebastian Herr

In this paper, we prove the global well-posedness property of charge critical Dirac-Klein-Gordon (DKG) system in $\mathbb{R}^{3+1}$ for small initial data in a space of scale invariant data which has extra weighted regularity in the angular…

Analysis of PDEs · Mathematics 2014-08-19 Xuecheng Wang

We prove global well-posedness below the charge norm (i.e., the $L^2$ norm of the Dirac spinor) for the Dirac-Klein-Gordon system of equations (DKG) in one space dimension. Adapting a method due to Bourgain, we split off the high frequency…

Analysis of PDEs · Mathematics 2007-05-23 Sigmund Selberg

We study initial value problem of the $(1+4)$-dimensional Maxwell-Klein-Gordon system (MKG) in the Lorenz gauge. Since (MKG) in the Lorenz gauge does not possess an obvious null structure, it is not easy to handle the nonlinearity. To…

Analysis of PDEs · Mathematics 2021-06-22 Seokchang Hong

In this paper we are interested in the global well-posedness of the 3D Klein-Gordon-Zakharov equations with small initial data. We show the uniform boundedness of the energy for the global solution without any compactness assumptions on the…

Analysis of PDEs · Mathematics 2023-04-11 Xinyu Cheng , Jiao Xu

For arbitrarily large initial data in an open set defined by an approximate Majorana condition, global existence and scattering results for solutions to the Dirac equation with Soler-type nonlinearity and the Dirac-Klein-Gordon system in…

Analysis of PDEs · Mathematics 2018-09-17 Timothy Candy , Sebastian Herr

We prove global well-posedness for the 3D Klein-Gordon equation with a concentrated nonlinearity.

Analysis of PDEs · Mathematics 2016-07-05 Elena Kopylova

Local well-posedness for the Dirac - Klein - Gordon equations is proven in one space dimension, where the Dirac part belongs to H^{-{1/4}+\epsilon} and the Klein - Gordon part to H^{{1/4}-\epsilon} for 0 < \epsilon < 1/4, and global…

Analysis of PDEs · Mathematics 2007-05-23 Hartmut Pecher

We consider a coupled Wave-Klein-Gordon system in 3D, and prove global regularity and modified scattering for small and smooth initial data with suitable decay at infinity. This system was derived by Wang and LeFloch-Ma as a simplified…

Analysis of PDEs · Mathematics 2019-11-26 Alexandru D. Ionescu , Benoit Pausader

The Cauchy problem for quadratic Klein-Gordon systems is considered in two spatial dimensions and higher under a suitable non-resonance condition on the masses, including the main case of equal masses. A global well-posedness and scattering…

Analysis of PDEs · Mathematics 2012-09-20 Tobias Schottdorf

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

This article constitutes the final and main part of a three-paper sequence, whose goal is to prove global well-posedness and scattering of the energy critical Maxwell-Klein-Gordon equation (MKG) on $\mathbb{R}^{1+4}$ for arbitrary finite…

Analysis of PDEs · Mathematics 2016-09-21 Sung-Jin Oh , Daniel Tataru

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…

Analysis of PDEs · Mathematics 2022-02-23 Xing Cheng , Zihua Guo , Gyeongha Hwang , Haewon Yoon

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 study the global well-posedness and scattering of 3D defocusing, cubic Schr\"odinger equation. Recently, Dodson [arXiv:2004.09618] studied the global well-posedness in a critical Sobolev space $\dot{W}^{11/7,7/6}$. In this…

Analysis of PDEs · Mathematics 2024-10-10 Jia Shen , Yifei Wu

We show new global well-posedness results for mass-critical nonlinear Schr\"odinger equations on tori in one and two dimensions. For the quintic nonlinear Schr\"odinger equation on the circle we show global well-posedness for initial data…

Analysis of PDEs · Mathematics 2023-12-29 Robert Schippa

In this paper we are interested in the coupled wave and Klein-Gordon equations in $\mathbb{R}^+\times\mathbb{R}^2$. We want to establish the global well-posedness of such system by showing the uniform boundedness of the energy for the…

Analysis of PDEs · Mathematics 2023-12-06 Xinyu Cheng
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