2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/63760A description of the real, complete modules over the Clifford algebra of a Hilbert space, with the elements of the latter acting by skew-symmetric operators.11 pages. Theorem 3.11 is new and replaces a mistaken example in the previous versionRepresentation Theory81R10; 17B65text