2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/56384Using the Chern-Simon formulation of (2+1) gravity, we derive, for the general asymptotic metrics given by the Fefferman-Graham-Lee theorems, the emergence of the Liouville mode associated to the boundary degrees of freedom of (2+1) dimensional anti de Sitter geometries.6 pages, Latex, presented at the Journees Relativistes 99, Weimar, September 12-17, 1999; revised version with minor modifications and 1 reference addedHigh Energy Physics - Theorytext