2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/53273We briefly review some results in the theory of quantum $W_3$ gravity in the chiral gauge. We compare them with similar results in the analogous but simpler cases of $d=2$ induced gauge theories and $d=2$ induced gravity.14 pages. Contribution to the proceedings of the Trieste Summer School on High Energy Physics and Cosmology, July-Aug. 1991High Energy Physics - Theorytext