2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/73665It is shown that every operator on (C[0,1]) which preserves a copy of an asymptotic (\ell_1) space, also preserves a copy of (C[0,1]).Functional Analysis46B03Operators on (C[0,1]) preserving copies of asymptotic (\ell_1) spacestext