Investigations of space-times with four-parameter groups of motions acting on null hypersurfaces
- 1 May 1977
- journal article
- research article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 18 (5) , 885-888
- https://doi.org/10.1063/1.523354
Abstract
An investigation of all metric having a four‐parameter group of symmetrics with null three‐dimensional orbits is made. An attempt to solve the Einstein field equations using various simple energy‐momentum tensors, with on exception, gives incompatible sets of equations. The exception is a solution for a null fluid possessing the G4I1 group of symmetries.Keywords
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