# Global existence and scattering for rough solutions of a nonlinear Schrödinger equation on ℝ3

@article{Colliander2003GlobalEA,
title={Global existence and scattering for rough solutions of a nonlinear Schr{\"o}dinger equation on ℝ3},
author={James E. Colliander and Markus Keel and Gigliola Staffilani and Hideo Takaoka and Terence Tao},
journal={Communications on Pure and Applied Mathematics},
year={2003},
volume={57}
}
• Published 23 January 2003
• Mathematics
• Communications on Pure and Applied Mathematics
We prove global existence and scattering for the defocusing, cubic, nonlinear Schrödinger equation in $H^{\scriptscriptstyle S}$ (ℝ3) for s > ${4 \over 5}$. The main new estimate in the argument is a Morawetz‐type inequality for the solution ϕ. This estimate bounds \documentclass{article}\usepackage{amsfonts}\pagestyle{empty}\begin{document}\begin{displaymath}{\|\phi \left( x, t \right) \|}_{\textstyle{L^{4}}_{\scriptstyle{x,t}} \bigl( \mathbb{R} \times \mathbb{R} \bigr)} \, ,\end{displaymath…
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