Feuilletages totalement geodesiques, flots riemanniens et varietes de Seifert
arXiv:math/0406346
Abstract
We study totally geodesic codimension 1 smooth foliations on Lorentzian manifold. We are in particular interested by the relations between riemannian flows and geodesic foliations. We prove that, up to a 2-cover, any Seifert bundle admit such a foliation.
18 pages, in french