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A class of algebraically special perfect fluid space-times

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Abstract

Solutions of the Einstein field equations are considered subject to the assumptions that (1) the source of the gravitational field is a perfect fluid, (2) the Weyl tensor is algebraically special, (3) the corresponding repeated principal null congruence is geodesic and shearfree. If in addition, the repeated principal null congruence is non-expanding, it follows that the twist of this congruence must be non-zero (for a physically reasonable fluid). The general line element subject to this additional restriction is derived. Furthermore, it is shown that all solutions of the Einstein field equations which satisfy (1) and exhibit local rotational symmetry, necessarily satisfy (2) and (3).

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Authors and Affiliations

  1. Department of Applied Mathematics, University of Waterloo, Canada

    J. Wainwright

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  1. J. Wainwright
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This work was supported in part by the National Research Council of Canada.

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Wainwright, J. A class of algebraically special perfect fluid space-times. Commun.Math. Phys. 17, 42–60 (1970). https://doi.org/10.1007/BF01649583

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  • DOI: https://doi.org/10.1007/BF01649583

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