On $\ell$-open $C^*$ algebras and $\ell$-closed $C^*$-algebras

Fuente: arXiv
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Autori principali: Oyetunbi, Dolapo, Tikuisis, Aaron
Natura: Preprint
Pubblicazione: 2023
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author Oyetunbi, Dolapo
Tikuisis, Aaron
author_facet Oyetunbi, Dolapo
Tikuisis, Aaron
contents In this paper, we characterize $\ell$-open and $\ell$-closed $C^*$-algebras and deduce that $\ell$-open $C^*$-algebras are $\ell$-closed, as conjectured by Blackadar. Moreover, we show that a commutative unital $C^*$-algebra is $\ell$-open if and only if it is semiprojective.
format Preprint
id arxiv_https___arxiv_org_abs_2310_15155
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle On $\ell$-open $C^*$ algebras and $\ell$-closed $C^*$-algebras
Oyetunbi, Dolapo
Tikuisis, Aaron
Operator Algebras
46L05(Primary), 46L85(Secondary)
In this paper, we characterize $\ell$-open and $\ell$-closed $C^*$-algebras and deduce that $\ell$-open $C^*$-algebras are $\ell$-closed, as conjectured by Blackadar. Moreover, we show that a commutative unital $C^*$-algebra is $\ell$-open if and only if it is semiprojective.
title On $\ell$-open $C^*$ algebras and $\ell$-closed $C^*$-algebras
topic Operator Algebras
46L05(Primary), 46L85(Secondary)
url https://arxiv.org/abs/2310.15155