# Global well-posedness and scattering for the energy-critical Schrödinger equation in $\mathbb R^3$

### Abstract

We obtain global well-posedness, scattering, and global $L^{10}_{t,x}$ spacetime bounds for energy-class solutions to the quintic defocusing Schrödinger equation in $\mathbb{R}^{1+3}$, which is energy-critical. In particular, this establishes global existence of classical solutions. Our work extends the results of Bourgain [4] and Grillakis [20], which handled the radial case. The method is similar in spirit to the induction-on-energy strategy of Bourgain [4], but we perform the induction analysis in both frequency space and physical space simultaneously, and replace the Morawetz inequality by an interaction variant (first used in [12], [13]). The principal advantage of the interaction Morawetz estimate is that it is not localized to the spatial origin and so is better able to handle nonradial solutions. In particular, this interaction estimate, together with an almost-conservation argument controlling the movement of $L^2$ mass in frequency space, rules out the possibility of energy concentration.

## Authors

James Colliander

Department of Mathematics
University of Toronto
Toronto, Ontario

Markus Keel

School of Mathematics
University of Minnesota
Minneapolis, MN 55455
United States

Gigiola Staffilani

Department of Mathematics
Massachusetts Institute of Technology
Cambridge, MA 02139
United States

Hideo Takaoka

Department of Mathematics
Kobe University
Kobe 657-8501
Japan

Terence Tao

Department of Mathematics
University of California, Los Angeles
Los Angeles, CA 90095
United States
and
Mathematical Sciences Institute
The Australian National University
Canberra 0200
Australia