Die affin-zusammenhängenden Räume mit verunstalteter rekurrenter Krümmung
An application of the special Reissner-Nordström space-time to description of the universe in the neighbourhood of the Planck era
The description of the special Reissner-Nordström space-time in the Planck era is presented and its comparison with the Robertson-Walker space-time is given.
Sur l'objet géométrique représentant une direction munie d'un sens
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