2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/224987The Singer transfer provides an interesting connection between modular representation theory and the cohomology of the Steenrod algebra. We discuss a version of `Quillen stratification' theorem for the Singer transfer and its consequences.This is the version published by Geometry & Topology Monographs on 14 November 2007Algebraic Topology18G35, 55P42, 55Q10, 55Q45, 55S10, 55T15, 55U15, 55U35, 20C20, 46E25text