An extension theorem for conformal gauge singularities
arXiv:0710.5552 · doi:10.1063/1.3239509
Abstract
We analyse conformal gauge, or isotropic, singularities in cosmological models in general relativity. Using the calculus of tractors, we find conditions in terms of tractor curvature for a local extension of the conformal structure through a cosmological singularity and prove a local extension theorem.
43 pages, no figures, version as published in JMP, small changes, updated references