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math.OA2020
Extension of positive definite functions and Connes' embedding conjecture
Peter Burton, Kate Juschenko
In this paper we formulate a conjecture which is a strengthening of an extension theorem of Bakonyi and Timotin for positive definite functions on the free group on two generators.…
math.OA2009★ 3 cited
Matrices of unitary moments
Ken Dykema, Kate Juschenko
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, altern…