2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/38508The main ideas behind the new ways to preserve chiral symmetries for lattice fermions are presented. The discussion is focused on vector-like fermions, the case relevant for lattice QCD.12 pages, LaTeX, includes sprocl.styHigh Energy Physics - LatticeHigh Energy Physics - Phenomenologytext