2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/35533It is argued that a characteristic length may be associated with the entropic state of a spherically symmetric black hole in the cosmological context. This length is much smaller than the Schwarzschild-radius of a black hole and may act as a regulator of arbitrarily high frequencies apparently entering the usual derivation of Hawking's radiation.7 pages, Latex, (ISTPM) IPM-94-055General Relativity and Quantum Cosmologytext