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Two-symmetric Lorentzian manifolds
Authors:Dmitri V. Alekseevsky  Anton S. Galaev
Affiliation:1. The University of Edinburgh, School of Mathematics, The King’s Buildings, Mayfield Road, Edinburgh, United Kingdom;2. Department of Mathematics and Statistics, Faculty of Science, Masaryk University, Kotlá?ská 2, 61137 Brno, Czech Republic
Abstract:We classify two-symmetric Lorentzian manifolds using methods of the theory of holonomy groups. These manifolds are exhausted by a special type of pp-waves and, like the symmetric Cahen–Wallach spaces, they have commutative holonomy.
Keywords:53C29   53C35   53C50
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