Perfect fluid spacetimes and Yamabe solitons
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DOI: 10.1063/5.0033967
Abstract: This paper deals with the study of perfect fluid spacetimes. It is proven that a perfect fluid spacetime is Ricci recurrent if and only if the velocity vector field of perfect fluid spacetime is parallel… read more here.
Keywords: fluid; perfect fluid; yamabe solitons; vector field ... See more keywords
Perfect fluid spacetimes with harmonic generalized curvature tensor
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DOI: 10.18910/71142
Abstract: We show that n-dimensional perfect fluid spacetimes with divergence-free conformal curvature tensor and constant scalar curvature are generalized Robertson Walker (GRW) spacetimes; as a consequence a perfect fluid Yang pure space is a GRW spacetime.… read more here.
Keywords: perfect fluid; curvature tensor; fluid spacetimes; curvature ... See more keywords