The commutant of LH in its ultrapower may or may not be trivial - Mathematics > Operator AlgebrasReport as inadecuate




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Abstract: Kirchberg asked in 2004 whether the commutant of LH$ in its normultrapower is trivial. Assuming the Continnuum Hypothesis, we prove that theanswer depends on the choice of the ultrafilter.



Author: Ilijas Farah, N. Christopher Phillips, Juris Steprāns

Source: https://arxiv.org/







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