2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/171356We derive an asymptotic formula for entropy rate of a hidden Markov chain around a "weak Black Hole". We also discuss applications of the asymptotic formula to the asymptotic behaviors of certain channels.16 pagesInformation TheoryAsymptotics of Entropy Rate in Special Families of Hidden Markov Chainstext