An Infinite Transitivity Theorem

Fuente: arXiv
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Autore principale: Gould, Miles
Natura: Preprint
Pubblicazione: 2025
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author Gould, Miles
author_facet Gould, Miles
contents In this note, we promote an infinite Kadison transitivity theorem on massive $C^*$-algebras, including the Calkin algebra. This transitivity stems from the analog of countable degree-1 saturation on pure states which is inherited from these algebras via excision. We show this saturation to be equivalent to several order-theoretic properties on the quantum filter associated to the state, in particular the property of being a quantum P-point. While we show their existence is independent from ZFC, under basic set theoretic assumptions, we produce a plethora of these states. Finally, we find an irreducible representation of the Calkin algebra which fails infinite transitivity.
format Preprint
id arxiv_https___arxiv_org_abs_2512_07549
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle An Infinite Transitivity Theorem
Gould, Miles
Operator Algebras
46L05
In this note, we promote an infinite Kadison transitivity theorem on massive $C^*$-algebras, including the Calkin algebra. This transitivity stems from the analog of countable degree-1 saturation on pure states which is inherited from these algebras via excision. We show this saturation to be equivalent to several order-theoretic properties on the quantum filter associated to the state, in particular the property of being a quantum P-point. While we show their existence is independent from ZFC, under basic set theoretic assumptions, we produce a plethora of these states. Finally, we find an irreducible representation of the Calkin algebra which fails infinite transitivity.
title An Infinite Transitivity Theorem
topic Operator Algebras
46L05
url https://arxiv.org/abs/2512.07549