most citedGroup classification of the Sachs equations for a radiating axisymmetric, non-rotating, vacuum space-time

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gr-qc2006★ 1 cited

Group classification of the Sachs equations for a radiating axisymmetric, non-rotating, vacuum space-time

Nail H. Ibragimov, Ewald J. H. Wessels, George F. R. Ellis

We carry out a Lie group analysis of the Sachs equations for a time-dependent axisymmetric non-rotating space-time in which the Ricci tensor vanishes. These equations, which are th…