2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/46139In Topcolor theories the mass of the top quark is generated dynamically by new strong interactions coupling to the third generation fermions. This leads to potentially observable effects in flavor-changing neutral current processes involving heavy flavored mesons, as well as in the production of heavy quarks at high-energy colliders. Recent theoretical developments and potential phenomenological constraints on these models are also briefly reviewed.9 pages, LaTeX, 2 figures, uses epsf.sty. Invited talk presented at the XXXI Rencontres de Moriond on QCD and High Energy Hadronic Interactions, Les Arcs, France, March 1996High Energy Physics - Phenomenologytext