Timeline for Commensurability classes of subgroups of a nilpotent group
Current License: CC BY-SA 4.0
15 events
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| Dec 30, 2023 at 16:12 | vote | accept | Corentin B | ||
| Dec 30, 2023 at 9:20 | history | edited | Martin Sleziak |
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| Dec 30, 2023 at 9:16 | answer | added | YCor | timeline score: 6 | |
| Dec 30, 2023 at 9:10 | history | edited | YCor | CC BY-SA 4.0 |
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| Dec 30, 2023 at 8:07 | history | edited | Corentin B | CC BY-SA 4.0 |
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| Dec 30, 2023 at 8:00 | comment | added | Corentin B | Right, I didn’t realize “commensurability” and “subgroups” usually combine in another way. I should put more emphasis on abstractly commensurable. All your examples are commensurable to $\mathbb Z$. | |
| Dec 30, 2023 at 6:01 | comment | added | AGenevois | Maybe I do not understand your question, but $\mathbb{Z}^2$ already contains infinitely many subgroups up to commensurability, say the $\langle (1,n) \rangle$ for $n \geq 0$. | |
| Dec 29, 2023 at 11:30 | history | edited | Corentin B |
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| Dec 29, 2023 at 11:28 | history | edited | Corentin B | CC BY-SA 4.0 |
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| Dec 29, 2023 at 11:28 | history | edited | Corentin B | CC BY-SA 4.0 |
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| Dec 29, 2023 at 11:22 | history | edited | Corentin B | CC BY-SA 4.0 |
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| Dec 29, 2023 at 11:22 | history | edited | Corentin B | CC BY-SA 4.0 |
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| Dec 29, 2023 at 11:21 | history | edited | Corentin B | CC BY-SA 4.0 |
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| S Dec 29, 2023 at 11:19 | review | First questions | |||
| Dec 29, 2023 at 11:53 | |||||
| S Dec 29, 2023 at 11:19 | history | asked | Corentin B | CC BY-SA 4.0 |