2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/28026We transform the two-matrix model, studied by P.Di Francesco and al., into a normal one-matrix model by identifying a ``formal'' integral used by these authors as a proper integral. We show also, using their method, that the results obtained for the resolvent and the density are not reliable.6 pages, no figures, LaTeXCondensed Mattertext