paper

On the local structure of Lorentzian Einstein manifolds with parallel distribution of null lines

arXiv:0912.3400 · doi:10.1088/0264-9381/27/22/225003

Abstract

We study transformations of coordinates on a Lorentzian Einstein manifold with a parallel distribution of null lines and show that the general Walker coordinates can be simplified. In these coordinates, the full Lorentzian Einstein equation is reduced to equations on a family of Einstein Riemannian metrics.

Dedicated to Dmitri Vladimirovich Alekseevsky on his 70th birthday

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