2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/36584The Einstein gravitational field of a material point at rest is derived anew - by a suitable limit process - from the field of a sphere of a homogeneous and incompressible fluid. This result supports clearly the thesis according to which the physically interesting singularities must correspond to the presence of matter in loco.6 pages, PDF from MS-Word97General Relativity and Quantum CosmologyAstrophysicstext