Abstract
We show that a unital \(C^*\)-algebra is commutative if and only if the gyrogroup of the set of positive invertible elements is in fact a group.
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Abe, T., Hatori, O. On a characterization of commutativity for \(C^*\)-algebras via gyrogroup operations. Period Math Hung 72, 248–251 (2016). https://doi.org/10.1007/s10998-016-0126-3
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DOI: https://doi.org/10.1007/s10998-016-0126-3