Sur une caractérisation de la sphère S^{2n+1} en termes de géométrie riemannienne de contact
PIU, MARIA PAOLA
1989-01-01
Abstract
One proves that the unique hypersurfaces S⊂IR2 n such that a contact structure is isohelicoidal are the Euclidean spheres centered at the origin.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.