2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/115205We classify all pencils on a general weighted hypersurface in $\mathbb{P}(1,a_{1},a_{2},a_{3},a_{4})$ of degree $\sum_{i=1}^{4}a_{i}$ whose general members are surfaces of Kodaira dimension zero.141 pagesAlgebraic Geometry14E07; 14D06; 14J28; 14J45; 14J70text