Dualities of Differential Geometric Invariants on Cuspidal Edges on Flat Fronts in the Hyperbolic Space and the de Sitter Space

被引:4
|
作者
Saji, Kentaro [1 ]
Teramoto, Keisuke [2 ]
机构
[1] Kobe Univ, Grad Sch Sci, Dept Math, Nada Ku, Rokkodai 1-1, Kobe, Hyogo 6578501, Japan
[2] Kyushu Univ, Inst Math Ind, Motooka 744, Fukuoka 8190395, Japan
关键词
Cuspidal edge; flat front; duality; LINEAR WEINGARTEN SURFACES; SCHWARZ MAP; LEGENDRIAN DUALITIES; HYPERSURFACES; SINGULARITIES; PARALLEL; BEHAVIOR; 3-SPACE;
D O I
10.1007/s00009-020-1474-z
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We compute the differential geometric invariants of cuspidal edges on flat surfaces in hyperbolic 3-space and in de Sitter space. Several dualities of invariants are pointed out.
引用
收藏
页数:20
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