2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/209268We solve Gromov's Vaserstein problem. Namely, we show that a null-homotopic holomorphic mapping from a finite dimensional reduced Stein space into SL_n(C) can be factored into a finite product of unipotent matrices with holomorphic entries.18 pagesComplex Variablestext