2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/33502In this paper we investigate the Bose-Einstein condensation of massive spin-1 particles in an Einstein universe. The system is considered under relativistic conditions taking into consideration the possibility of particle-antiparticle pair production. An exact expression for the charge density is obtained, then certain approximations are employed in order to obtain the solutions in closed form. A discussion of the approximations employed in this and other work is given. The effects of finite-size and spin-curvature coupling are emphasized.14 pages, standard Latex, 1 figureGeneral Relativity and Quantum Cosmologytext