Space-times admitting a three-parameter similarity group
J. Carot, L. Mas, A. M. Sintes
Abstract
Spacetimes admitting a similarity group are considered. Amongst them, special attention is given to the 3-parameter ones. A classification of such spacetimes is given based on the Bianchi type of the similarity group H3, and the general form of the metric is provided in each case assuming the orbits are non-null.
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