Non-relativistic spacetimes with cosmological constant
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1999-02-01
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Iop Publishing Ltd
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Recent data on supernovae favour high values of the cosmological constant. Spacetimes with a cosmological constant have non-relativistic kinematics quite different from Galilean kinematics. de Sitter spacetimes, vacuum solutions of Einstein's equations with a cosmological constant, reduce in the non-relativistic limit to Newton-Hooke spacetimes, which are non-metric homogeneous spacetimes with non-vanishing curvature. The whole non-relativistic kinematics would then be modified, with possible consequences to cosmology, and in particular to the missing-mass problem.
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Classical and Quantum Gravity. Bristol: Iop Publishing Ltd, v. 16, n. 2, p. 495-506, 1999.