2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/62195We construct operators which factorize the transfer function associated with a non-self-adjoint 2x2 operator matrix whose diagonal entries can have overlapping spectra and whose off-diagonal entries are unbounded operators.Contribution to Proc. of IWOTA-Portugal' 2000, 17 ppSpectral TheoryFunctional AnalysisPrimary 47A56; Secondary 47Nxx, 47N50Factorization Theorem for the Transfer Function Associated with an Unbounded Non-Self-Adjoint 2x2 Operator Matrixtext