Well-posed formulation of Lovelock and Horndeski theories
General Relativity and Quantum Cosmology
2020-07-01 v2 High Energy Physics - Theory
Abstract
We study the initial value problem for Lovelock and Horndeski theories of gravity. We show that the equations of motion of these theories can be written in a form that, at weak coupling, is strongly hyperbolic and therefore admits a well-posed initial value problem. This is achieved by introducing a new class of "modified harmonic" gauges for general relativity.
Keywords
Cite
@article{arxiv.2003.08398,
title = {Well-posed formulation of Lovelock and Horndeski theories},
author = {Aron D. Kovacs and Harvey S. Reall},
journal= {arXiv preprint arXiv:2003.08398},
year = {2020}
}
Comments
minor changes