%0 Journal Article
%T Sums of commutators in pure C*-algebras
%A Ping Wong Ng
%A Leonel Robert
%J Mathematics
%D 2015
%I arXiv
%X In a pure C*-algebra (i.e., one having suitable regularity properties in its Cuntz semigroup), any element on which all bounded traces vanish is a sum of 7 commutators.
%U http://arxiv.org/abs/1504.00046v1