2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/210985A global extension theorem is established for isotropic singularities in polytropic perfect fluid Bianchi space-times. When an extension is possible, the limiting behaviour of the physical space-time near the singularity is analysed.13 pages, no figures, revised and shortened, improved proof of main theorem, some correctionsGeneral Relativity and Quantum CosmologyA global conformal extension theorem for perfect fluid Bianchi space-timestext