2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/204152There are some radiative origins for the neutrino masses in the conventional left-right symmetric models with the usual bi-doublet and triplet Higgs scalars. These radiative contributions could dominate over the tree-level seesaw and could explain the observed neutrino masses.5 pages, 3 figures. Revised version with minor change. Accepted by PRDHigh Energy Physics - Phenomenologytext