It is conjectured that the canonical models of varieties (not of general type) are bounded when the Iitaka volume is fixed. We confirm this conjecture when the general fibers of the corresponding Iitaka fibration are in a fixed bounded family of polarized Calabi-Yau pairs. As a consequence, we prove that in this case, the fibration is birationally bounded, and when it has terminal singularities, the corresponding minimal model is bounded in codimension 1.
تحميل البحث