2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42402The recent neutrino data converge towards a 3$ν$ scheme with two large and one small mixing angles. Their implications for model-building are discussed. Some possible components of a flavor symmetry over quarks and leptons are singled out. We suggest that they can be naturally embedded in a unified structure with a replicated gauge group.to appear in the proceedings of the 38th Rencontres of Moriond (Electroweak Interactions and Unified Theories) - 2003High Energy Physics - Phenomenologytext