A. Vaccaro

activity

20182022

most citedStrongly outer actions of amenable groups on

Z

-stable nuclear

C^{*}

-algebras

3 citations · 3 across the 2 of their papers we have counts for

collaborators

6 papers

math.OA2022

Dynamical comparison and $Z$ -stability for crossed products of simple $C^{*}$ -algebras

Eusebio Gardella, Shirly Geffen, Petr Naryshkin +1

We establish $Z$ -stability for crossed products of outer actions of amenable groups on $Z$ -stable $C^{*}$ -algebras under a mild technical assumption which we call…

math.LO2022

Games on AF-algebras

Ben De Bondt, Andrea Vaccaro, Boban Velickovic +1

We analyze $C^{*}$ -algebras, particularly AF-algebras, and their $K_{0}$ -groups in the context of the infinitary logic $L_{ω_{1} ω}$ . Given two separable unital AF-…

math.OA2021★ 3 cited

Strongly outer actions of amenable groups on $Z$ -stable nuclear $C^{*}$ -algebras

Eusebio Gardella, Ilan Hirshberg, Andrea Vaccaro

Let $A$ be a separable, unital, simple, $Z$ -stable, nuclear $C^{*}$ -algebra, and let $α : G \to Aut (A)$ be an action of a discrete, countable, amenable group. S…

math.OA2019

Trivial Endomorphisms of the Calkin Algebra

Andrea Vaccaro

We prove that it is consistent with ZFC that every unital endomorphism of the Calkin algebra $Q (H)$ is unitarily equivalent to an endomorphism of $Q (H)$ which i…

math.LO2018

Voiculescu's Theorem for Nonseparable C*-algebras

Andrea Vaccaro

We prove that Voiculescu's noncommutative version of the Weyl-von Neumann theorem can be extended to all (not necessarily separable) unital, separably representable C*-algebras who…

math.LO2018

Embedding $C^{*}$ -algebras into the Calkin algebra

Ilijas Farah, Georgios Katsimpas, Andrea Vaccaro

Every $C^{*}$ -algebra, regardless of its density character, can be embedded into the Calkin algebra in a forcing extension of the universe obtained without collapsing any ca…