“…(22), for positive values of the 4-curvature of radial spheres it is necessary that R > R f . This condition can always be satisfied in the solutions under study [7], which indicates that in such worlds, formed by dust and electromagnetic fields, the Coulomb divergence, i.e., the singularity R = 0 in the field of a point charge, which is present in Minkowski space, is removed. However, in the Tolman and Friedmann worlds [1], to which our solution passes over if the electromagnetic field is absent (R f = 0), as well as in the Reissner-Nordstr¨om space describing a vacuum world of a point charge e with mass m 0 , to which our solution passes over in the absence of matter (F = 0), this singularity is present.…”