2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/66610We give upper and lower bounds for the order of the top Chern class of the Hodge bundle on the moduli space of principally polarized abelian varieties.Latex, 12 pages. These results improve the first half of math.AG/0009104. To appear in Acta MathematicaAlgebraic Geometry14K10The order of the top Chern class of the Hodge bundle on the moduli space of abelian varietiestext