2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/167384In this paper we view some fundamentals of the theory of Hilbert C*-modules and examine some ways in which Hilbert C*-modules differ from Hilbert spaces.8 pages, A talk given at the first workshop on C*-algebra theoryOperator Algebras46L08text