A Conformal Extension Theorem based on Null Conformal Geodesics
arXiv:0803.1650 · doi:10.1063/1.3239510
Abstract
In this article we describe the formulation of null geodesics as null conformal geodesics and their description in the tractor formalism. A conformal extension theorem through an isotropic singularity is proven by requiring the boundedness of the tractor curvature and its derivatives to sufficient order along a congruence of null conformal geodesic. This article extends earlier work by Tod and Luebbe.
20 pages, no figures, version as published in JMP, updated references