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Search: MSC category 46L57 ( Derivations, dissipations and positive semigroups in $C^$-algebras *$-algebras * )

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1. CMB 2011 (vol 55 pp. 73)

Dean, Andrew J.
Classification of Inductive Limits of Outer Actions of ${\mathbb R}$ on Approximate Circle Algebras
In this paper we present a classification, up to equivariant isomorphism, of $C^*$-dynamical systems $(A,{\mathbb R},\alpha )$ arising as inductive limits of directed systems $\{ (A_n,{\mathbb R},\alpha_n),\varphi_{nm}\}$, where each $A_n$ is a finite direct sum of matrix algebras over the continuous functions on the unit circle, and the $\alpha_n$s are outer actions generated by rotation of the spectrum.

Keywords:classification, $C^*$-dynamical system
Categories:46L57, 46L35

2. CMB 2006 (vol 49 pp. 213)

Dean, Andrew J.
On Inductive Limit Type Actions of the Euclidean Motion Group on Stable UHF Algebras
An invariant is presented which classifies, up to equivariant isomorphism, $C^*$-dynamical systems arising as limits from inductive systems of elementary $C^*$-algebras on which the Euclidean motion group acts by way of unitary representations that decompose into finite direct sums of irreducibles.

Keywords:classification, $C^*$-dynamical system
Categories:46L57, 46L35

3. CMB 2003 (vol 46 pp. 164)

Dean, Andrew J.
Classification of $\AF$ Flows
An $\AF$ flow is a one-parameter automorphism group of an $\AF$ $C^*$-algebra $A$ such that there exists an increasing sequence of invariant finite dimensional sub-$C^*$-algebras whose union is dense in $A$. In this paper, a classification of $C^*$-dynamical systems of this form up to equivariant isomorphism is presented. Two pictures of the actions are given, one in terms of a modified Bratteli diagram/path-space construction, and one in terms of a modified $K_0$ functor.

Categories:46L57, 46L35

4. CMB 2001 (vol 44 pp. 355)

Weaver, Nik
Hilbert Bimodules with Involution
We examine Hilbert bimodules which possess a (generally unbounded) involution. Topics considered include a linking algebra representation, duality, locality, and the role of these bimodules in noncommutative differential geometry

Categories:46L08, 46L57, 46L87

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