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ENFORCEABLE OPERATOR ALGEBRAS

Part of: Model theory Selfadjoint operator algebras

Published online by Cambridge University Press:  01 March 2019

Isaac Goldbring
Isaac Goldbring*
Affiliation:
Department of Mathematics, University of California, Irvine, Irvine, CA92697, USA (isaac@math.uci.edu)
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Abstract

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We adapt the classical notion of building models by games to the setting of continuous model theory. As an application, we study to what extent canonical operator algebras are enforceable models. For example, we show that the hyperfinite II1 factor is an enforceable II1 factor if and only if the Connes Embedding Problem has a positive solution. We also show that the set of continuous functions on the pseudoarc is an enforceable model of the theory of unital, projectionless, abelian $\text{C}^{\ast }$-algebras and use this to show that it is the prime model of its theory.

Keywords

model-theoretic forcinglocally universal objectsoperator algebras

MSC classification

Primary: 03C25: Model-theoretic forcing 03C98: Applications of model theory 03C20: Ultraproducts and related constructions 46L05: General theory of $C^*$-algebras 46L10: General theory of von Neumann algebras
Type
Research Article
Information
Journal of the Institute of Mathematics of Jussieu , Volume 20 , Issue 1 , January 2021 , pp. 31 - 63
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Copyright
© Cambridge University Press 2019

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