2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/148812Using Voiculsecu's free entropy, it is shown that the free group factors L(F_n) lack property C of Popa and that they lack finite multiplicity abelian subalgebras. Property C is an assymptotic commutivity property.14 pages, AMS-TeX. This revision corrects an error in Lemma 2.2Functional AnalysisOperator AlgebrasTwo applications of free entropytext