Timeline for Presentationally finite group "extensions"
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
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| S Feb 5, 2023 at 14:20 | vote | accept | tomasz | ||
| Feb 5, 2023 at 12:42 | history | edited | YCor |
edited tags
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| S Feb 5, 2023 at 12:33 | history | suggested | Shaun |
I added a tag.
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| Feb 4, 2023 at 22:47 | history | became hot network question | |||
| Feb 4, 2023 at 19:56 | review | Suggested edits | |||
| S Feb 5, 2023 at 12:33 | |||||
| Feb 4, 2023 at 16:00 | answer | added | Benjamin Steinberg | timeline score: 6 | |
| Feb 4, 2023 at 15:21 | vote | accept | tomasz | ||
| S Feb 5, 2023 at 14:20 | |||||
| Feb 4, 2023 at 15:19 | answer | added | Achim Krause | timeline score: 3 | |
| Feb 4, 2023 at 15:14 | comment | added | tomasz | @AchimKrause: Oh, that's perfect. Thanks. If you post this as an answer, I will accept it. (Well, if there is some other terminology specific to groups, I will accept that, but I'm perfectly happy with this.) | |
| Feb 4, 2023 at 15:11 | comment | added | Achim Krause | In analogy with the usage in algebraic geometry and commutative algebra, you could say that a morphism of groups $G\to H$ is "of finite presentation" if $H$ arises from $G$ by adding finitely many generators and relations, and call $H$ "finitely presented over $G$" | |
| Feb 4, 2023 at 15:07 | comment | added | Carl-Fredrik Nyberg Brodda | If you only add a single relation, this is called a “relative one-relator group”, which has some literature, eg here. | |
| Feb 4, 2023 at 14:59 | history | edited | tomasz | CC BY-SA 4.0 |
added 186 characters in body
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| Feb 4, 2023 at 14:45 | history | asked | tomasz | CC BY-SA 4.0 |