Geometric invariants and focal surfaces of spacelike curves in de Sitter space from a caustic viewpoint

by Haiming Liu, Jiajing Miao
Published 2021-01-01

Gauss-Bonnet theorem in Lorentzian Sasakian space forms

by Haiming Liu, Jiajing Miao
Published 2021-06-01

The Sub-Riemannian Limit of Curvatures for Curves and Surfaces and a Gauss–Bonnet Theorem in the Rototranslation Group

by Haiming Liu, Jiajing Miao, Wanzhen Li, Jianyun Guan
Published 2021-01-01