A Large Data Regime for non-linear Wave Equations

Abstract

For semi-linear wave equations with null form non-linearities on ${\mathbb{R}}^{3+1}$, we exhibit an open set of initial data which are allowed to be large in energy spaces, yet we can still obtain global solutions in the future. We also exhibit a set of localized data for which the corresponding solutions are strongly focused, which in geometric terms means that a wave travels along an specific incoming null geodesic in such a way that almost all of the energy is confined in a tubular neighborhood of the geodesic and almost no energy radiating out of this tubular neighborhood.

44 pages, 7 figures. arXiv admin note: substantial text overlap with arXiv:1207.5591

Cited by in corpus (1)

• A Note on Semi-linear Wave Equations