Free 3-distributions: holonomy, Fefferman constructions and dual distributions
arXiv:0708.3027
Abstract
This paper analyses the parabolic geometries generated by a free 3-distribution in the tangent space of a manifold. It shows the existence of normal Fefferman constructions over CR and Lagrangian contact structures corresponding to holonomy reductions to SO(4,2) and SO(3,3), respectively. There is also a fascinating construction of a `dual' distribution when the holonomy reduces to . The paper concludes with some holonomy constructions for free -distributions for .
a corrected and improved version, 24 pages