The representation category of any compact group is the bimodule category of a II₁ factor
classification
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categoryfactorbimodulecompactgrouprepresentationactiondescribed
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We prove that given any compact group G, there exists a minimal action of G on a II_1 factor M such that the bimodule category of the fixed-point II_1 factor M^G is naturally equivalent with the representation category of G. In particular, all subfactors of M^G with finite Jones index can be described explicitly.
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