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Kerr–Schild spacetimes with an (A)dS background

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    0359548 - MU-W 2012 RIV GB eng J - Článek v odborném periodiku
    Málek, T. - Pravda, Vojtěch
    Kerr–Schild spacetimes with an (A)dS background.
    Classical and Quantum Gravity. Roč. 28, č. 12 (2011), s. 125011 ISSN 0264-9381
    Grant CEP: GA ČR GAP203/10/0749
    Výzkumný záměr: CEZ:AV0Z10190503
    Klíčová slova: higher-dimensional gravity * algebraic classification * Einstein spacetimes * Kerr-Schild spacetimes
    Kód oboru RIV: BA - Obecná matematika
    Impakt faktor: 3.320, rok: 2011
    http://iopscience.iop.org/0264-9381/28/12/125011/

    General properties of Kerr–Schild spacetimes with an (A)dS background in arbitrary dimension n > 3 are studied. It is shown that the geodetic Kerr–Schild vector k is a multiple WAND of the spacetime. Einstein Kerr–Schild spacetimes with non-expanding k are shown to be of Weyl type N, while the expanding spacetimes are of type II or D. It is shown that this class of spacetimes obeys the optical constraint. This allows us to solve Sachs equation, determine r-dependence of boost weight zero components of the Weyl tensor and discuss curvature singularities.
    Trvalý link: http://hdl.handle.net/11104/0197320
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