Null hypersurfaces as wave fronts in Lorentz-Minkowski space

Shintaro Akamine, Atsufumi Honda, Masaaki Umehara +1

In this paper, we show that ``$L$-complete null hypersurfaces'' (i.e. ruled hypersurfaces foliated by entirety of light-like lines) as wave fronts in the $(n+1)$-dimensional Lorent…