论 Penrose 的'大爆炸之前'思想
广义相对论与量子宇宙学
2007-10-23 v2 微分几何
摘要
我们指出，具有扭转射线 (twisting rays) 的代数特殊 Einstein 场展现了 Roger Penrose 最近所考虑的共形宇宙 (conformal Universes) 的基本性质。
引用
@article{arxiv.0710.3879,
title = {On Penrose's `before the big bang' ideas},
author = {C. Denson Hill and Pawel Nurowski},
journal= {arXiv preprint arXiv:0710.3879},
year = {2007}
}
评论
We changed our conventions, so that the sign of the cosmological constant agrees with the conventions of cosmologists