2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/74740In this paper we classify graded reflexive ideals, up to isomorphism and shift, in certain three dimensional Artin-Schelter regular algebras. This classification is similar to the classification of right ideals in the first Weyl algebra, a problem that was completely settled recently. The situation we consider is substantially more complicated however.30 pagesRings and AlgebrasAlgebraic GeometryPrimary 16D25, 16S38, 18E30text