2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/39265We discuss two modifications of domain-wall fermions, aimed to reduce the chiral-symmetry violations presently encountered in numerical simulations.13 pages, contribution to workshop "Lattice Fermions and Structure of the Vacuum" (Dubna, Russia), uses crckapb.styHigh Energy Physics - Latticetext