2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/76074WE use the structure theory for C_0 operators to determine when the square of a C_0(1) operator is irreducible and when its lattices of invariant and hyperinvariant subspaces coincide.12 pagesFunctional AnalysisSpectral Theory47A15,47A45On the Structure of the Square of a C_0(1) Operatortext