A primer on the (2+1) Einstein universe
Differential Geometry
2011-07-12 v1
Abstract
The Einstein universe is the conformal compactification of Minkowski space. It also arises as the ideal boundary of anti-de Sitter space. The purpose of this article is to develop the synthetic geometry of the Einstein universe in terms of its homogeneous submanifolds and causal structure, with particular emphasis on dimension , in which there is a rich interplay with symplectic geometry.
Cite
@article{arxiv.0706.3055,
title = {A primer on the (2+1) Einstein universe},
author = {Thierry Barbot and Virginie Charette and Todd Drumm and William M. Goldman and Karin Melnick},
journal= {arXiv preprint arXiv:0706.3055},
year = {2011}
}