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gr-qc2022
Kerr-Schild Tetrads and the Nijenhuis Tensor
J. W. Maluf, F. L. Carneiro, S. C. Ulhoa +1
We write the Kerr-Schild tetrads in terms of the flat space-time tetrads and of a (1,1) tensor . This tensor can be considered as a projection operator, since it transforms…
gr-qc2022★ 2 cited
On the total energy conservation of the Alcubierre spacetime
F. L. Carneiro, S. C. Ulhoa, J. W. Maluf +1
In this article, we consider the Alcubierre spacetime, such a spacetime describes a ``bubble'' that propagates with arbitrary global velocity. This setting allows movement at a spe…