# Semiprojectivity with and without a group action

@article{Phillips2014SemiprojectivityWA, title={Semiprojectivity with and without a group action}, author={N. Christopher Phillips and Adam P. W. S{\o}rensen and Hannes Thiel}, journal={Journal of Functional Analysis}, year={2014}, volume={268}, pages={929-973} }

## 10 Citations

Compact group actions with the Rokhlin property

- MathematicsTransactions of the American Mathematical Society
- 2018

We provide a systematic and in-depth study of compact group actions with the Rokhlin property. It is show that the Rokhlin property is generic in some cases of interest; the case of totally…

Semiprojectivity and the geometry of graphs

- Mathematics
- 2012

In this thesis semiprojectivity is investigated in three different settings; for commutative C-algebras, for Real C-algebras, and for C-algebras with a group action. In the setting of commutative…

The minimal exact crossed product

- Mathematics
- 2018

Given a locally compact group $G$, we study the smallest exact crossed-product functor $(A,G,\alpha)\mapsto A\rtimes_{\mathcal E} G$ on the category of $G$-$C^*$-dynamical systems. As an outcome, we…

The local-triviality dimension of actions of compact quantum groups

- Mathematics
- 2018

We define the local-triviality dimension for actions of compact quantum groups on unital C*-algebras, and say that the resulting compact quantum principal bundle is locally trivial when this…

The primitive ideal space of Deaconu–Renault groupoid C*-algebras

- Mathematics
- 2017

The main goal of this thesis is to reproduce the article [SW16] by Sims and Williams, categorising the primitive ideal space of the class of DeaconuRenault groupoid C∗-algebras generated by…

Circle actions on $\mathcal{O}_2$-absorbing $C^*$-algebras

- Mathematics
- 2014

We classify circle actions with the Rokhlin property on separable, nuclear $C^*$-algebras that absorb the Cuntz algebra $\mathcal{O}_2$ tensorially. The invariant we use is the induced action on the…

Regularity of simple nuclear real C*-algebras under tracial conditions

- MathematicsProceedings of the Edinburgh Mathematical Society
- 2021

Abstract The Toms–Winter conjecture is verified for those separable, unital, nuclear, infinite-dimensional real C*-algebras for which the complexification has a tracial state space with compact…

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