2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/125594We classify irreducible d-semistable degenerations of primary Kodaira surfaces. As an application we construct a canonical completion for the moduli space of primary Kodaira surfaces.25 pages, 4 figures, corrections in Section 6, to appear in the Festschrift in honor of Hans GrauertAlgebraic Geometry14D15, 14D22, 14J15, 32G05, 32G13, 32J05, 32F15Irreducible degenerations of primary Kodaira surfacestext