most citedOn the lack of inverses to C*-extensions related to property T groups

3 citations · 5 across the 6 of their papers we have counts for

collaborators

6 papers

math.OA2005★ 1 cited

Relative K-homology and normal operators

V. Manuilov, K. Thomsen

Let be a C*-algebra, a C*-subalgebra, and let be a stable C*-algebra. Under modest assumptions we organize invertible C*-extensions of by that are tri…

math.OA2005

The group of unital -extensions

Vladimir Manuilov, Klaus Thomsen

Let and be separable -algebras, unital and stable. It is shown that there is a natural six-terms exact sequence which relates the group which arises by conside…

math.OA2005★ 3 cited

On the lack of inverses to C*-extensions related to property T groups

V. Manuilov, K. Thomsen

Using ideas of S. Wassermann on non-exact -algebras and property T groups, we show that one of his examples of non-invertible C*-extensions is not semi-invertible. To prove th…

math.OA2003

On the asymptotic tensor norm

V. Manuilov, K. Thomsen

We introduce a new asymptotic one-sided and symmetric tensor norm, the latter of which can be considered as the minimal tensor norm on the category of separable C*-algebras with ho…

math.OA2003★ 1 cited

Extensions of C*-algebras and translation invariant asymptotic homomorphisms

V. Manuilov, K. Thomsen

Let , be C*-algebras; separable, -unital and stable. We introduce a notion of translation invariance for asymptotic homomorphisms from $SA=C_0(\mathbb R)\otimes A…

math.OA2003

Semi-invertible extensions and asymptotic homomorphisms

V. Manuilov, K. Thomsen

We consider the semigroup of extensions of a separable C*-algebra by a stable C*-algebra modulo unitary equivalence and modulo asymptotically split extensions. T…