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math.OA2025
On the inclusion $\cO_2 \subset \cQ_2$
Jacopo Bassi, Roberto Conti
The diadic -algebra $\cQ_2$ contains canonically a copy of the Cuntz algebra $\cO_2$. It is shown that the inclusion $\cO_2 \subset \cQ_2$ is -irreducible and rigid. It f…
math.OA2023★ 1 cited
On isometries of spectral triples associated to -algebras and crossed products
J. Bassi, R. Conti
We examine the structure of two possible candidates of isometry groups for the spectral triples on -algebras introduced by Christensen and Ivan. In particular, we completely de…