Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2007-12-20
J.Geom.Phys.58:1186-1202,2008
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
31 pages, submitted to J. Geom. Phys
Scientific paper
10.1016/j.geomphys.2008.04.003
A 3+1 decomposition of the twistor and valence-2 Killing spinor equation is made using the space spinor formalism. Conditions on initial data sets for the Einstein vacuum equations are given so that their developments contain solutions to the twistor and/or Killing equations. These lead to the notions of twistor and Killing spinor initial data. These notions are used to obtain a characterisation of initial data sets whose development are of Petrov type N or D.
Gómez-Lobo Alfonso García-Parrado
Valiente Kroon Juan A.
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