2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/218287On a separable C*-algebra A every (completely) bounded map, which preserves closed two sided ideals, can be approximated uniformly by elementary operators if and only if A is a finite direct sum of C*-algebras of continuous sections vanishing at infinity of locally trivial C*-bundles of finite type.16 pages, accepted to PEMSOperator AlgebrasFunctional Analysis46L05, 46L07, 47B47text