Domain-wall/cosmology correspondence in AdS/dS supergravity

We realize the domain-wall/cosmology correspondence for (pseudo) supersymmetric domain walls (cosmologies) in the context of four-dimensional supergravity. The OSp(2 vertical bar 4) -invariant anti-de Sitter (adS) vacuum of a particular N = 2 Maxwell-Einstein supergravity theory is shown to correspond to the OSp(2*vertical bar 2, 2)-invariant de Sitter (dS) vacuum of a particular pseudo-supergravity model, with 'twisted' reality conditions on spinors. More generally, supersymmetric domain walls of the former model correspond to pseudo-supersymmetric cosmologies of the latter model, with time-dependent pseudo-Killing spinors that we give explicitly.