Time-like hypersurfaces in de Sitter space and Legendrian singularities
Time-like hypersurfaces in de Sitter space and Legendrian singularities
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DOI:
10.1007/s10958-007-0232-0
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发表时间:
2007-07
影响因子:
--
通讯作者:
S. Izumiya
中科院分区:
文献类型:
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作者:
S. Izumiya
We construct a basic framework for studying the extrinsic differential geometry on time-like hypersurfaces in the de Sitter space from the viewpoint of the theory of Legendrian singularities. As an application, we study the contact of time-like hypersurfaces with flat totally umbilic time-like hypersurfaces in the de Sitter space.