Sur les espaces-temps homogenes
arXiv:math/9810202
Abstract
Here, we classify Lie groups acting isometrically on compact Lorentz manifolds, and in particular we describe the geometric structure of compact homogeneous Lorentz manifolds.
26 pages. Published copy, also available at http://www.maths.warwick.ac.uk/gt/GTMon1/paper26.abs.html