2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/78080We study a class of Calabi-Yau varieties that can be represented as a non-singular model of a double covering of $\mathbb P^3$ branched along certain octic surfaces. We compute Euler numbers of all constructed examples and describe their resolution of singularities.11 pagesAlgebraic Geometry14J32; 14J17text