The object of the present paper is to study weakly cyclic Z symmetric spacetimes. At first we prove that a weakly cyclic Z symmetric spacetime is a quasi Einstein spacetime. Then we study (WCZS)_4 spacetimes satisfying the condition div C = 0. Next we consider conformally flat (WCZS)_4 spacetimes. Finally, we characterise dust fluid and viscous fluid (WCZS)_4 spacetimes.
On weakly cyclic Z-symmetric spacetimes / U.C. De, C.A. Mantica, L.G. Molinari, Y.J. Suh. - In: ACTA MATHEMATICA HUNGARICA. - ISSN 0236-5294. - 149:2(2016 Aug), pp. 462-477.
On weakly cyclic Z-symmetric spacetimes
C.A. Mantica
;L.G. Molinari;
2016
Abstract
The object of the present paper is to study weakly cyclic Z symmetric spacetimes. At first we prove that a weakly cyclic Z symmetric spacetime is a quasi Einstein spacetime. Then we study (WCZS)_4 spacetimes satisfying the condition div C = 0. Next we consider conformally flat (WCZS)_4 spacetimes. Finally, we characterise dust fluid and viscous fluid (WCZS)_4 spacetimes.
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