The uniqueness of the helicoid in the Lorentz-Minkowski space L3
arXiv:0707.1946
Abstract
In this paper we deal with the uniqueness of the Lorentzian helicoid and Enneper's surface among properly embedded maximal surfaces with lightlike boundary of mirror symmetry in the Lorentz-Minkowski space L3.
Corrected gap in the proof of former Corollary 5.1