  The simple structure of doubly torqued vectors allows for a natural
characterization of doubly twisted down to warped spacetimes, as well as Kundt
spacetimes down to PP waves. For the first ones the vectors are timelike, for
the others they are null. We also discuss some properties, and their connection
to hypersurface orthogonal conformal Killing vectors, and null Killing vectors.

General Relativity and Quantum Cosmology;Differential Geometry