College of Mathematics and Information Science, Henan Normal University, Xinxiang, China
School of Mathematics and Statistics, Nangyang Normal University, Nangyang, China
Department of Computer Science, Henan Normal University, Xinxiang, China
Copyright © 2014 Linfen Cao, Guodong Xu, Zhaohui Dai et al. 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.
How to Cite this Article
L. Cao, G. Xu and Z. Dai, "A New Characterization of Totally Umbilical Hypersurfaces in de Sitter Space,"
Advances in Pure Mathematics, Vol. 4 No. 2, 2014, pp. 42-46. doi:
10.4236/apm.2014.42006.