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FRW universe models in conformally flat-spacetime coordinates I: General formalism

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Abstract.

The 3 -space of a universe model is defined at a certain simultaneity. Hence space depends on which time is used. We find a general formula generating all known and also some new transformations to conformally flat-spacetime coordinates. A general formula for the recession velocity is deduced.

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Authors and Affiliations

  1. Department of Engineering, Oslo University College, St.Olavs Plass, 4, N-0130, Oslo, Norway

    Ø. Grøn & S. Johannesen

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  1. Ø. Grøn
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  2. S. Johannesen
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Correspondence to S. Johannesen.

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Grøn, Ø., Johannesen, S. FRW universe models in conformally flat-spacetime coordinates I: General formalism. Eur. Phys. J. Plus 126, 28 (2011). https://doi.org/10.1140/epjp/i2011-11028-6

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  • DOI: https://doi.org/10.1140/epjp/i2011-11028-6

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