2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/123279We introduce a matrix model describing the fully-packed O(n) model on random Eulerian triangulations (i.e. triangulations with all vertices of even valency). For n=1 the model is mapped onto a particular gravitational 6-vertex model with central charge c=1, hence displaying the expected shift c -> c+1 when going from ordinary random triangulations to Eulerian ones. The case of arbitrary n is also discussed.12 pages, 3 figures, tex, harvmac, epsfStatistical MechanicsHigh Energy Physics - Theorytext