Geodesics in nilpotent Lie groups
arXiv:math/0507063
Abstract
We study the geodesics problem in Heisenberg group H (case SR and riemannian). The sheaf of infinitesimal automorphisms of the (2n,2n+1) distribution D over H is an infinite, transitive Lie algebra sheaf.
arXiv commentto appear in Proceeding of GAP 2007, Geometry and Physic Conference, Dakar (SN)