2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50282We review the relevance to the black hole entropy problem of boundary dynamics in Chern-Simons gravity. We then describe a recent derivation of the action induced on the four dimensional boundary in a five dimensional Chern-Simons gravity theory with gauge invariant, anti-deSitter boundary conditions.10 pages, LaTeX, to appear in the Fradkin Memorial Conference Proceedings, requires style file esfconf.styHigh Energy Physics - Theorytext