On the classification of surfaces of general type with non-birational bicanonical map and Du Val Double planes

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/69645We classify surfaces of general type whose bicanonical map is composed with a rational map of degree 2 onto a rational or ruled surface.Algebraic GeometryPrimary 14J29; Secondary 14J10, 14E20On the classification of surfaces of general type with non-birational bicanonical map and Du Val Double planestext