Timeline for Is there such a thing as the sigma-completion of a Boolean algebra?
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| Mar 21 at 10:33 | comment | added | Antonio Lorenzin | This is also known from the C*-algebra perspective: see Proposition 1.1 of Wright's paper "Regular $\sigma$-completions of C*-algebras" (londmathsoc.onlinelibrary.wiley.com/doi/abs/10.1112/jlms/…) and compare it with Remark 5.3.4.(iii) in Saito and Wright's book "Monotone complete C*-algebras and Generic Dynamics" (link.springer.com/book/10.1007/978-1-4471-6775-4). | |
| Jun 9, 2020 at 22:19 | comment | added | Terry Tao | Thanks for this! In fact a discrepancy between that corollary and what was claimed here made me realise a subtle error in my argument, now fixed. | |
| Jun 9, 2020 at 22:18 | history | edited | Terry Tao | CC BY-SA 4.0 |
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| Jun 9, 2020 at 18:49 | comment | added | Robert Furber | See Corollary 3.1 of F. M. Yaqub's paper: projecteuclid.org/euclid.pjm/1103035763 (I also independently discovered this result in 2017, and then only found Yaqub's paper much later by accident). | |
| Jun 9, 2020 at 17:39 | history | edited | Terry Tao | CC BY-SA 4.0 |
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| Jun 9, 2020 at 17:02 | history | answered | Terry Tao | CC BY-SA 4.0 |