2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/149853We describe a kind of deformation of the anti-DeRham algebra on a Calabi-Yau manifold $X$. These are in 1-1 correspondence with the total cohomology $\oplus H^i (X, \C)$.9 pages, amstex2.1Algebraic Geometrytext