2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/70256This is part of an ongoing program to classify maximal orders on surfaces via their ramification data. Del Pezzo and ruled orders have already been classified. In this paper, we classify numerically Calabi-Yau orders which are the noncommutative analogues of surfaces of Kodaira dimension zero.Rings and AlgebrasAlgebraic Geometrytext