arXiv:1203.6829v1 [math.DG] 30 Mar 2012
p,there is X∈ XF with X(p) = v. (2) Every geodesic that is perpendicular at one point to a leaf is horizontal, i.e., is perpendicular to every leaf it meets. A leaf Lof F (and each point in L) is called regular if the dimension of Lis maximal, otherwise Lis called singular. SRFs were defined by Molino [41] in his study of Riemannian ...