Mixed-typecurves2020Mixed-type curves and the lightcone frame in Minkowski 3-spaceTongchang Liu, D. PeiDOI
Evolutes2020Evolutes of the (n,m)-cusp mixed-type curves in the Lorentz–Minkowski planeXin Zhao, Tongchang Liu, D. Pei, Cuilian ZhangDOI
NullhelicesandCartan2019Null helices and Cartan slant helices in Lorentz–Minkowski 3-spaceTongchang Liu, D. PeiInternational Journal of Geometric Methods in Modern Physics (IJGMMP)DOI