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Published in 2020 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ab6f81
Abstract: A Lorentz manifold is said to be a conformally stationary spacetime if it is endowed with a globally defined conformal timelike vector field K, whereas it is a pp-wave when there is a globally defined…
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Keywords:
complete spacelike;
symmetric spacetimes;
vector field;
spacelike hypersurfaces ... See more keywords