2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/33734A new method for derivation of the equation of motion from the field equation is proposed. The problem of embedding the singularities in a field satisfying the field equations is discussed.2pp, LaTeX2e, uses ws-p9-75x6-50.cls. Contributed paper to the Ninth Marcel Grossmann Meeting, Rome, Italy, July 2000 (to be published by World Scientific, Singapore)General Relativity and Quantum Cosmologytext