@article{Krutoi_2021, title={On stability of deformations of Cuntz – Toeplitz algebras}, volume={73}, url={https://umj.imath.kiev.ua/index.php/umj/article/view/6590}, DOI={10.37863/umzh.v73i5.6590}, abstractNote={<p>UDC 517.986.2</p> <p>We study $C^*$-algebras $\mathcal{O}_{n+m}^{\hat{q }$ generated by isometries $\{s_i\}_{i=1}^n\cup\{t_j\}_{j=1}^m,$ where isometries from the same collection are orthogonal and isometries from different collections are $q_{i,j}$-commuting.<br>It is shown that if $|q_{i,j}|&lt;1,$ then $C^*$-algebra $\mathcal{O}_{n+m}^{\hat{q }$ is isomorphic to Cuntz -Toeplitz algebra $\mathcal{O}_{n+m}^{0}.$</p&gt;}, number={5}, journal={Ukrains’kyi Matematychnyi Zhurnal}, author={Krutoi , K. A.}, year={2021}, month={May}, pages={674 - 678} }