2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/137235Applying the main results of math.AG/0408295, we identify the motives occurring as cones in the co-localization and localization filtrations of the boundary motive of a Shimura variety.38 pages; accepted for publication in Comp. MathAlgebraic Geometry14G35 (14F42)On the boundary motive of a Shimura varietytext