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Crossed-products by locally compact groups: intermediate subfactors. (English) Zbl 1399.46086
The authors study actions of locally compact groups on von Neumann factors and the associated crossed-product von Neumann algebras. They prove an intermediate subfactor theorem (a Galois correspondence). That is, they provide examples of strictly outer actions of non-discrete groups that satisfy the intermediate subfactor property.

MSC:
46L10 General theory of von Neumann algebras
46L37 Subfactors and their classification
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