2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/75879Three boundary Nevanlinna-Pick interpolation problems at finitely many points are formulated for generalized Schur functions. For each problem, the set of all solutions is parametrized in terms of a linear fractional transformation with a Schur class parameter.Complex Variables41A05, 32A35text