Abstract
We show that the six-dimensional sphere does not admit three-dimensionel totally
umbilical proper
Open AccessOn the three-dimensional
On the three-dimensional CR
Received13 Dec 1989
Revised27 Mar 1990
Copyright
Copyright © 1991 Hindawi Publishing Corporation. This is an open access article distributed under the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.