Almost pseudo-Ricci symmetric spacetime solutions in F(R)-gravity
The objective of the present paper is to study 4-dimensional almost pseudo Ricci symmetric perfect fluid spacetimes ( APRS ) 4 . We show that a Robertson–Walker spacetime is ( APRS ) 4 and vice versa under certain condition imposed on its scale factor. Some popular toy models of F ( R )-gravity are...
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Veröffentlicht in: | General relativity and gravitation 2021, Vol.53 (1), Article 5 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
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Zusammenfassung: | The objective of the present paper is to study 4-dimensional almost pseudo Ricci symmetric perfect fluid spacetimes
(
APRS
)
4
. We show that a Robertson–Walker spacetime is
(
APRS
)
4
and vice versa under certain condition imposed on its scale factor. Some popular toy models of
F
(
R
)-gravity are also studied under the current setting and various energy conditions are investigated. |
---|---|
ISSN: | 0001-7701 1572-9532 |
DOI: | 10.1007/s10714-020-02775-y |