An Infinite Transitivity Theorem
Operator Algebras
2026-01-22 v4
Abstract
In this note, we promote an infinite Kadison transitivity theorem on massive -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.
Keywords
Cite
@article{arxiv.2512.07549,
title = {An Infinite Transitivity Theorem},
author = {Miles Gould},
journal= {arXiv preprint arXiv:2512.07549},
year = {2026}
}
Comments
15 pages, substantial alterations to section 4, comments welcome