%0 Journal Article
%T A Conformal Extension Theorem based on Null Conformal Geodesics
%A Christian L¨ıbbe
%J Mathematics
%D 2008
%I arXiv
%R 10.1063/1.3239510
%X 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.
%U http://arxiv.org/abs/0803.1650v2