On $q$-tensor products of Cuntz algebras

Alexey Kuzmin, Vasyl Ostrovskyi, Danylo Proskurin +2

We consider the $C^{\ast }$-algebra ${\mathcal{E}}_{n,m}^q$, which is a $q$-twist of two Cuntz-Toeplitz algebras. For the case $|q|<1$, we give an explicit formula which untwists the $q$-d…