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Spacelike submanifolds of codimension two in de Sitter space |
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| Authors: | Masaki Kasedou |
| Institution: | Department of Mathematics, Hokkaido University, Sapporo 060-0810, Japan |
| Abstract: | We investigate the differential geometry of spacelike submanifolds of codimension two in de Sitter space and classify the singularities of lightlike hypersurfaces and lightcone Gauss maps in de Sitter 4-space. |
| Keywords: | 53A35 53B30 58C25 |
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