Mathematics – Differential Geometry
Scientific paper
2005-10-18
Mathematics
Differential Geometry
20 pages, 2 figures
Scientific paper
We show that the singularities of spacelike maximal surfaces in
Lorentz-Minkowski 3-space generically consist of cuspidal edges, swallowtails
and cuspidal cross caps. The same result holds for spacelike mean curvature one
surfaces in de Sitter 3-space. To prove these, we shall give a simple criterion
for a given singular point on a surface to be a cuspidal cross cap.
Fujimori Shoichi
Saji Kentaro
Umehara Masaaki
Yamada Kotaro
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