Positivstellensatz for C*-tensor categories
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Abstract
We explore semi-pre-C*-algebras in the context of rigid semisimple C*-tensor categories and using techniques from annular representations, we extend Ozawa’s criterion for property (T) in groups to this context.
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View paper (DOI)Open access versionOpenAlexProceedings of the American Mathematical SocietyPublished 2026-08-26
Authors: Kajal Das, Mainak Ghosh, Shamindra Kumar Ghosh