BULLETIN OF THE KOREAN MATHEMATICAL SOCIETY, cilt.51, sa.6, ss.1863-1874, 2014 (SCI-Expanded)
In this paper, we study spacelike rotational surfaces which are called boost invariant surfaces in Minkowski 4-space E-1(4). We give necessary and sufficient condition for flat spacelike rotational surface to have pointwise 1-type Gauss map. Also, we obtain a characterization for boost invariant marginally trapped surface with pointwise 1-type Gauss map.