2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/124497We continue studying essential inputs of trees and automata. Strongly essential inputs of trees are introduced and studied. Various examples for application in Computer Science are shown.7 pages, 1 figure, Sixth International Conference on Discrete Mathematics and Applications, 31.08-02.09.2001, BanskoComputational ComplexityDiscrete MathematicsF.1.1; F.1.2text