Model of Decaying Dark Energy Based on the Kaluza–Klein Theory

On the basis of a scalar potential associated with Beltrami’s geometry – manifolds of constant negative curvature, the Klein–Gordon problem has been solved, making it possible, under the assumption of a physical structure of the fifth dimension (presumably a rich form of matter), to model on the basis of the Kaluza–Klein theory the hypothesis of decaying dark energy configuring the rates of expansion of the Universe.