Abstract
A quasirecurrent pairing of vector fields {X1, X2} (defined in [1]) is investigated on a space-time in two cases: (1)X 1 is spacelike andX 2 is timelike; (2) X1 is null andX 2 space-like. The physical interpretation of these vector fields is given.
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Rosca, R., Ianus, S. Space-times carrying a quasirecurrent pairing of vector fields. Gen Relat Gravit 8, 411–420 (1977). https://doi.org/10.1007/BF00765932
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DOI: https://doi.org/10.1007/BF00765932