Mathematics – Operator Algebras
Scientific paper
2008-08-27
Mathematics
Operator Algebras
17 pages
Scientific paper
Kirchberg asked in 2004 whether the commutant of L(H)$ in its (norm)
ultrapower is trivial. Assuming the Continnuum Hypothesis, we prove that the
answer depends on the choice of the ultrafilter.
Farah Ilijas
Phillips Christopher N.
Steprāns Juris
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