Feuilletages orthogonaux du tore à feuilles fermées
Tom 87 / 2005
Annales Polonici Mathematici 87 (2005), 207-212
MSC: 37C10, 57R25, 14P15.
DOI: 10.4064/ap87-0-16
Streszczenie
We give examples of pairs of orthogonal vector fields with closed orbits in every homotopy class of pairs of transversal vector fields on a two-dimensional riemannian torus.