2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/28431A general method to derive the master equations for extremal models is established. These systems are shown to develop a peculiar kind of correlations between elements related to the characterization of extremal dynamics as an information process.6 pages, no figures, uses REVTEXStatistical MechanicsMaster equations for extremal modelstext