Efren Ruiz

most citedCorners of Cuntz-Krieger algebras

4 citations · 4 across the 2 of their papers we have counts for

collaborators

2 papers

math.DS2025

Unital shift equivalence

Kevin Aguyar Brix, Efren Ruiz

We introduce and study a unital version of shift equivalence for finite square matrices over the nonnegative integers. In contrast to the classical case, we show that unital shift…

math.OA2012★ 4 cited

Corners of Cuntz-Krieger algebras

Sara E. Arklint, Efren Ruiz

We show that if $A$ is a unital $C^{*}$ -algebra and $B$ is a Cuntz-Krieger algebra for which $A \otimes K ≅ B \otimes K$ , then $A$ is a Cuntz-Krieger algebra. Conse…