2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/225481Two simple observations are made: (1) If the normal function associated to a Hodge class has a zero locus of positive dimension, then it has a singularity. (2) The intersection cohomology of the dual variety contains the cohomology of the original variety, if the degree of the embedding is large.5 pagesAlgebraic Geometry14D05text