Ricci Solitons on Spacelike Hypersurfaces of Generalized Robertson–Walker Spacetimes
Ricci Solitons on Spacelike Hypersurfaces of Generalized Robertson–Walker Spacetimes
In this paper, we investigate Ricci solitons on spacelike hypersurfaces in a special Lorentzian warped product manifold, the so-called generalized Robertson–Walker (GRW) spacetimes. Such spacetimes admit a natural form of symmetry which is represented by the conformal vector field f∂t, where f is the warping function and ∂t is the …