$K_1$ of separative exchange rings and C*-algebras with real rank zero

P. Ara, K. R. Goodearl, K. C. O'Meara +1

For any (unital) exchange ring $R$ whose finitely generated projective modules satisfy the separative cancellation property ($A\oplus A\cong A\oplus B\cong B\oplus B$ implies $A\co…