2 papers
math.OA2025
Diagonal-preserving Isomorphisms of Algebras from Infinite Graphs
Søren Eilers, Efren Ruiz
We establish logical equivalence between statements involving * the Cuntz C*-algebra with its canonical diagonal; * graph C*-algebras with their canonical diago…
math.OA2025
Refined moves for structure-preserving isomorphism of graph C*-algebras
Søren Eilers, Efren Ruiz
We formalize eight different notions of isomorphism among (unital) graph C*-algebras, and initiate the study of which of these notions may be described geometrically as generated b…