R Clouâtre, A Dor-On - International Mathematics Research …, 2024 - academic.oup.com
The residual finite-dimensionality of a-algebra is known to be encoded in a topological property of its space of representations, stating that finite-dimensional representations …
KE Courtney - MATHEMATICA SCANDINAVICA, 2021 - mscand.dk
Abstract The Local Lifting Property (LLP) is a localized version of projectivity for completely positive maps between $\mathrm {C}^* $-algebras. Outside of the nuclear case, very few …
D Enders, T Shulman - arXiv preprint arXiv:2403.12224, 2024 - arxiv.org
The (Local) Lifting Property ((L) LP) is introduced by Kirchberg and deals with lifting completely positive maps. We give a characterization of the (L) LP in terms of lifting $\ast …
T Shulman - Advances in Mathematics, 2022 - Elsevier
It is an old and challenging topic to investigate for which discrete groups G the full group C*- algebra C⁎(G) is residually finite-dimensional (RFD). In particular not much is known about …
The rotation algebra $\mathcal A_ {\theta} $ is the universal $ C^* $--algebra generated by unitary operators $ U, V $ satisfying the commutation relation $ UV=\omega VU $ where …
We pick-up from where we left off in talk 3 about exact C*-algebras. We learnt what an exact C*-algebra is and how exact sequences of C*-algebras work. In the first section of this talk …
KE Courtney - arXiv preprint arXiv:2002.02365, 2020 - arxiv.org
The Local Lifting Property (LLP) is a localized version of projectivity for completely positive maps between $\mathrm {C}^* $-algebras. Outside of the nuclear case, very few $\mathrm …