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C*-envelopes for operator algebras with a coaction and co-universal C*-algebras for product systems

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Published in 2022 at "Advances in Mathematics"

DOI: 10.1016/j.aim.2022.108286

Abstract: A cosystem consists of a possibly nonselfadoint operator algebra equipped with a coaction by a discrete group. We introduce the concept of C*-envelope for a cosystem; roughly speaking, this is the smallest C*-algebraic cosystem that… read more here.

Keywords: algebra; product systems; coaction; envelope ... See more keywords