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Algebras of Analytic Operators associated with a Periodic Flow on a Von Neumann Algebra

Published online by Cambridge University Press:  20 November 2018

Baruch Solel*
Affiliation:
Dalhousie University, Halifax, Nova Scotia
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Let M be a σ-finite von Neumann algebra and {σt}tT be a σ-weakly continuous representation of the unit circle, T, as *-automorphisms of M. Let H(σ) be the set of all xM such that

The structure of H(σ) was studied by several authors (see [2-13]).

The main object of this paper is to study the σ-weakly closed subalgebras of M that contain H(σ). In [12] this was done for the special case where H(σ) is a nonselfadjoint crossed product.

Let Mn, for nZ, be the set of all xM such that

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1985

References

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