2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/171563We apply an announced result of Blumberg-Cohen-Schlichtkrull to reprove (under restricted hypotheses) a theorem of Mahowald: the connective real and complex K-theory spectra are not Thom spectra.9 pages, 7 figuresAlgebraic Topology55N20 (Primary) 55P42, 55R45 (Secondary)The spectra ko and ku are not Thom spectra: an approach using THHtext