Matrices of unitary moments

  • Ken Dykema
  • Kate Juschenko

Abstract

We investigate certain matrices composed of mixed, second-order moments of unitaries. The unitaries are taken from $C^*$-algebras with moments taken with respect to traces, or, alternatively, from matrix algebras with the usual trace. These sets are of interest in light of a theorem of E. Kirchberg about Connes' embedding problem.
Published
2011-12-01
How to Cite
Dykema, K., & Juschenko, K. (2011). Matrices of unitary moments. MATHEMATICA SCANDINAVICA, 109(2), 225-239. https://doi.org/10.7146/math.scand.a-15186
Section
Articles