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Journal of Operator Theory

Volume 78, Issue 2, Fall 2017  pp. 347-355.

Unitaries in ultraproduct of matrice

Authors:  Liviu Paunescu
Author institution: Institute of Mathematics of the Romanian Academy, 21 Calea Grivitei, 010702 Bucharest, Romania

Summary:  We study various conditions under which a unitary in an ultraproduct of matrices is conjugated to an ultraproduct of permutations.

DOI: http://dx.doi.org/10.7900/jot.2016aug17.2124
Keywords: ultraproducts, von Neumann algebras, measure on spectrum

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