P. Ara

activity

19992005

K

-theory for graph algebras

1 citations · 1 across the 4 of their papers we have counts for

collaborators

Showing 1999Show all

2 papers · 1 filter

math.RA1999

An infinite analogue of rings with stable rank one

Pere Ara, Gert K. Pedersen, Francesc Perera

Replacing invertibility with quasi-invertibility in Bass' first stable range condition we discover a new class of rings, the QB-rings. These constitute a considerable enlargement o…

math.RA1999

$K_{1}$ 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 ( $A \oplus A ≅ A \oplus B ≅ B \oplus B$ implies $A\co…

An infinite analogue of rings with stable rank one

K1​ of separative exchange rings and C*-algebras with real rank zero

$K_{1}$ of separative exchange rings and C*-algebras with real rank zero