Estimation of the Hubble Parameter Based on the 5D Ross Solution in the Kaluza–Klein Theory

In this paper, based on the vacuum 5D ROSS solution of the Einstein equations in the Kaluza–Klein theory, the theory of radioactive decay of matter, and the 5D model, the condition of independence of the 5D metric tensor on the fifth coordinate has been obtained by introducing the new parameter associated with the half-life of a substance in the space medium. The result obtained allows the Hubble parameter and the red shift to be refined and the existence of the cosmic web as a form of the dark antigravity energy to be hypothesized.