Generating Wandering Subspaces for Doubly Commuting Covariant Representations

Generating Wandering Subspaces for Doubly Commuting Covariant Representations

We obtain a Halmos–Richter-type wandering subspace theorem for covariant representations of C ∗ -correspondences. Further the notion of Cauchy dual and a version of Shimorin’s Wold-type decomposition for covariant representations of C ∗ -correspondences is explored and as an application a wandering...

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Veröffentlicht in:Integral equations and operator theory 2019-08, Vol.91 (4), p.1-21, Article 35
Hauptverfasser: Trivedi, Harsh, Veerabathiran, Shankar
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Subspaces
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description We obtain a Halmos–Richter-type wandering subspace theorem for covariant representations of C ∗ -correspondences. Further the notion of Cauchy dual and a version of Shimorin’s Wold-type decomposition for covariant representations of C ∗ -correspondences is explored and as an application a wandering subspace theorem for doubly commuting covariant representations is derived. Using this wandering subspace theorem generating wandering subspaces are characterized for covariant representations of product systems in terms of the doubly commutativity condition.
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subjects Analysis
Commutativity
Mathematics
Mathematics and Statistics
Representations
Subspaces
Theorems
title Generating Wandering Subspaces for Doubly Commuting Covariant Representations
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