Voiculescu's free entropy dimension










is a quantity assigned to finite sets of operators in a von Neumann
algebra equipped with a trace. It is unknown whether

is the same on all generating sets of the von Neumann algebra. We find
the free entropy dimension of some unusual (even surprising)
generators of the free group factor




,
namely the DT-operators. The proof depends on an
upper-triangularization result of F. Dyson.
Back to the conference programme
Last updated May 31, 2005. This page was created and is maintained by Stephen Wills (s.wills@ucc.ie).