Timeline for Units of ring spectra and completion
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Nov 18, 2016 at 5:11 | comment | added | Tyler Lawson | Are you asking if taking units commutes with p-completion? If so, then the answer is no because it is also false for ordinary rings: $(R^\wedge_p)^\times \neq (R^\times)^\wedge_p$ as you can see from the example of $\Bbb Z$. However, the issue is almost entirely a $\pi_0$-issue. | |
| Nov 18, 2016 at 1:30 | comment | added | Qiaochu Yuan | I don't understand the relationship between the second paragraph and the first. | |
| Nov 17, 2016 at 19:06 | history | asked | Nicolas Boerger | CC BY-SA 3.0 |