Discrete symmetries of Petrov type-I space-times

Details Discrete symmetries of Petrov type-I space-times Discrete symmetries of Petrov type-I space-times

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989gregr..21.1073b&link_type=abstract

General Relativity and Gravitation, Volume 21, Issue 10, pp.1073-1083

Physics

2

Scientific paper

The arbitrariness in the definition of the canonical frame in a Petrov type-I space-time is examined and shown to imply that the Newman-Penrose formalism is invariant under a 24-element discrete symmetry group. The transformations of the N-P scalars under the operations of the group are obtained, and conditions are formulated which characterize space-times that maintain this symmetry globally.

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