Cuspidal edges and generalized cuspidal edges in the Lorentz-Minkowski 3-space

T. Fukui, R. Kinoshita, D. Pei +2

It is well-known that every cuspidal edge in the Euclidean space E^3 cannot have a bounded mean curvature function. On the other hand, in the Lorentz-Minkowski space L^3, zero mean…