J. Packer

activity

20242026

collaborators

3 papers

math.FA2026

Twisted crossed products of Banach algebras

Alonso DelfÃn, Carla Farsi, Judith Packer

Given a locally compact group $G$ , a nondegenerate Banach algebra $A$ with a contractive approximate identity, a twisted action $(I^\pm, I ¨ )$ of $G$ on $A$ , and a family $R$ …

math.FA2025

$L^{p}$ -spectral triples and $p$ -quantum compact metric spaces

Alonso DelfÃn, Carla Farsi, Judith Packer

For $p \in [1, \infty)$ , we generalize the concept of classical spectral triples by extending the framework from Hilbert spaces to $L^{p}$ -spaces, and from C*-algebras to $L^{p}$ -opera…

math.OA2024

Simplicity of $*$ -algebras of non-Hausdorff $Z_{2}$ -multispinal groupoids

C. Farsi, N. S. Larsen, J. Packer +1

We study simplicity of $C^{*}$ -algebras arising from self-similar groups of $Z_{2}$ -multispinal type, a generalization of the Grigorchuk case whose simplicity was first proved…

Twisted crossed products of Banach algebras

Lp-spectral triples and p-quantum compact metric spaces

Simplicity of ∗-algebras of non-Hausdorff Z2​-multispinal groupoids

$L^{p}$ -spectral triples and $p$ -quantum compact metric spaces

Simplicity of $*$ -algebras of non-Hausdorff $Z_{2}$ -multispinal groupoids