Relativity and Cosmology


The Big Mistake in the Derivation of Friedmann Equation

Authors: Mueiz Gafer KamalEldeen

The Friedmann Equation which is often described as the most important equation in cosmology can be derived from Newtonian gravity without General Relativity. However, it is shown here that this derivation is mathematically incorrect and cannot even be a good approximation specifically because of invalid application of the shell theorem. Derivations from general relativity and Machian derivation are also without foundation.

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[v1] 2017-06-16 08:10:58

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