Timeline for Should we delete or reopen these old posts?
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
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| Feb 28, 2020 at 21:34 | comment | added | darij grinberg | @Gro-Tsen: To avoid loss of content, you may want to repost your answer from mathoverflow.net/questions/127611/an-exercise-about-tor at math.stackexchange.com/questions/1437800 (which asks the first part of the question; the second can be a postscript). | |
| Feb 28, 2020 at 21:29 | comment | added | darij grinberg | I don't see a good point for deleting this, though. Questions about understanding issues in research papers have been considered legitimate last time I checked, but even if they no longer are, the knowledge that has been generated shouldn't be destroyed. | |
| Feb 28, 2020 at 21:27 | comment | added | darij grinberg | @YCor: oops! You're right, the problem is trivial. I mistook it for a different problem, where the kind of induction in the answer is the best argument. | |
| Feb 28, 2020 at 19:40 | comment | added | YCor | @darijgrinberg I expanded Lev Borisov's comment, which gives the immediate solution to the exercise (it works without assuming that $A$ has the given special form). The answer seems to be a more computational way to obtain the result without using the adjugate matrix. Whether this should be closed/deleted is maybe questionable, but it's the whole point of voting. | |
| Feb 28, 2020 at 19:02 | comment | added | darij grinberg | There is a good answer ato mathoverflow.net/questions/144341/… . Why are we voting for deletion?? | |
| Feb 9, 2020 at 20:25 | comment | added | YCor | @YemonChoi thank you! it seems to be a copying error (it's neither downvoted nor closed, nor any particular reason to include it here) – this list was manually picked among the list of 260 question tagged 'abstract-algebra'. The given item is now deleted from the above list – despite being copied here since yesterday it duly got no closing vote. | |
| Feb 9, 2020 at 20:12 | history | edited | YCor | CC BY-SA 4.0 |
removed wrongly included question
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| Feb 9, 2020 at 20:11 | comment | added | Stefan Kohl Mod | @YemonChoi no, it was never closed. -- You can see this in the timeline, which is now linked to below the vote score. | |
| Feb 9, 2020 at 20:02 | comment | added | Yemon Choi | mathoverflow.net/questions/88660/ring-of-a-spectral-space is currently open: was it closed when you wrote your original list? | |
| Feb 9, 2020 at 18:31 | history | edited | YCor | CC BY-SA 4.0 |
updates
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| Feb 8, 2020 at 13:08 | history | answered | YCor | CC BY-SA 4.0 |