2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/129766We introduce new models of very weakly coupled logistic and tent maps for which orbits of very long period are found. The length of these periods is far greater than one billion. The property of these models relatively to the distribution of the iterated points (invariant measure) is described.45 pages, 23 figures, Invited conference of International Conference on Industrial and Appl. Math., New Delhi, India, 4-6 Dec. 2004Dynamical Systems65P20; 65C10;37E05;text