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Hilbert $C^*$-modules over $\varSigma ^*$-algebras II: $\varSigma ^*$-Morita equivalence

Volume 243 / 2018

Clifford A. Bearden Studia Mathematica 243 (2018), 139-169 MSC: Primary 46L08; Secondary 16D90. DOI: 10.4064/sm8806-9-2017 Published online: 13 April 2018

Abstract

In previous work, we defined and studied $\varSigma^* $-modules, a class of Hilbert $C^*$-modules over $\varSigma^* $-algebras (the latter are $C^*$-algebras that are sequentially closed in the weak operator topology). The present work continues this study by developing the appropriate $\varSigma^* $-algebraic analogue of the notion of strong Morita equivalence for $C^*$-algebras. We define strong $\varSigma^*$-Morita equivalence, prove a few characterizations, look at the relationship with equivalence of categories of a certain type of Hilbert space representation, study $\varSigma^*$-versions of the interior and exterior tensor products, and prove a $\varSigma^*$-version of the Brown–Green–Rieffel stable isomorphism theorem.

Authors

  • Clifford A. BeardenDepartment of Mathematics
    The University of Texas at Tyler
    Tyler, TX 75799, U.S.A.
    e-mail

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