Petrov type D pure radiation fields of Kundt's class
We present all Petrov type D pure radiation space-times, with or without cosmological constant, with a shear-free, non-diverging geodesic principal null congruence.
gr-qc↗
arXiv subjects
L. De Groote
Publications and source records attributed to L. De Groote.
Purely radiative perfect fluids with degenerate shear tensor
We consider non-rotating geodesic perfect fluid spacetimes which are purely radiative in the sense that the gravitational field satisfies the covariant transverse conditions div H = div E = 0. We show that when the shear tensor S is degenerate, H, E and S necessarily commute and hence the resulting spacetimes are hypersurface homogeneous of Bianchi class A (modulo some purely electric exceptions).
gr-qc↗