25 citations · 164 across the 24 of their papers we have counts for
Showing 2016 · math.OAShow all
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math.OA2016★ 18 cited
The Dixmier property and tracial states for C*-algebras
Robert Archbold, Leonel Robert, Aaron Tikuisis
It is shown that a unital C*-algebra A has the Dixmier property if and only if it is weakly central and satisfies certain tracial conditions. This generalises the Haagerup-Zsido th…
math.OA2016
Majorization in C*-algebras
Ping Wong Ng, Leonel Robert, Paul Skoufranis
We investigate the closed convex hull of unitary orbits of selfadjoint elements in arbitrary unital C*-algebras. Using a notion of majorization against unbounded traces, a characte…
math.OA2016
Normal subgroups of invertibles and of unitaries in a C*-algebra
Leonel Robert
We investigate the normal subgroups of the groups of invertibles and unitaries in the connected component of the identity. By relating normal subgroups to closed two-sided ideals w…