2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/35494Black hole solutions can be used to shed light on general issues in General Relativity and Quantum Physics. Black--hole hair, entropy and naked singularities are considered here, along with some implications for the inflationary universe scenario.12 pages, NCL94-TP2 (LaTeX)General Relativity and Quantum Cosmologytext