2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/154376The characterization of fibonacci cobweb poset as d.a.g. and o.d.a.g. is given. The dim 2 poset such that its hasse diagram coincide with digraf of fibonacci cobweb poset is constructed.5 pages, 1 figureCombinatoricsDiscrete Mathematics11Bxx, 11B39, 06Axxtext