%0 Journal Article
%T Understanding singularities in Cartan's and NSF geometric structures
%A Diego M. Forni
%A Mirta S. Iriondo
%A Carlos N. Kozameh
%A M. F. Parisi
%J Physics
%D 2001
%I arXiv
%R 10.1063/1.1408282
%X In this work we establish a relationship between Cartan's geometric approach to third order ODEs and the 3-dim Null Surface Formulation (NSF). We then generalize both constructions to allow for caustics and singularities that necessarily arise in these formalisms.
%U http://arxiv.org/abs/gr-qc/0102106v1