2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43384Existing experimental data for neutrino oscillations are consistent with Lorentz-violating massless neutrinos. This talk summarizes some aspects of neutrino oscillations from the perspective of Lorentz and CPT violation in effective quantum field theory.15 pages, invited talk at the Third International Symposium on Quantum Theory and SymmetriesHigh Energy Physics - Phenomenologytext