Timeline for Chains of numbers generated by 2 involutions
Current License: CC BY-SA 4.0
18 events
| when toggle format | what | by | license | comment | |
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| Oct 10, 2020 at 11:34 | comment | added | Alexander | I suspect that may be cross ratios could help to investigate that involution's nature. | |
| Oct 10, 2020 at 11:32 | comment | added | Alexander | This question was born as a result of mathoverflow.net/questions/338802/… research. 12 13 14 18 19 20 - coefficients which move Finited Field's cosets and give us corresponding Finite Field's involution. | |
| Oct 10, 2020 at 11:27 | comment | added | Gerry Myerson | This is a site for questions of math research, @AVT. The $-2$ probably came from users who feel your question had no research angle. There's a fair chance that at some point other users will vote to close it, and then to delete it. Or, maybe not; maybe users will feel the answer redeems the question. But in any event, vandalizing the question is a significant breach of this website's norms. Please don't do it. | |
| Oct 10, 2020 at 7:59 | comment | added | Carlo Beenakker | please do not vandalize the question, it has received an answer which would make no sense if the question is deleted. | |
| Oct 10, 2020 at 7:58 | history | rollback | Carlo Beenakker |
Rollback to Revision 3
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| Oct 10, 2020 at 7:51 | review | Low quality posts | |||
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| Oct 10, 2020 at 7:47 | history | edited | Alexander | CC BY-SA 4.0 |
deleted 667 characters in body
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| Oct 5, 2020 at 15:05 | review | Close votes | |||
| Oct 11, 2020 at 3:03 | |||||
| Oct 5, 2020 at 14:51 | comment | added | YCor | Since it hasn't been said so far, the set of numbers one obtains from $x$ is called the orbit of $x$ under the group generated by $\{f,g\}$. | |
| Oct 5, 2020 at 14:49 | history | edited | YCor |
edited tags
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| Oct 5, 2020 at 14:07 | comment | added | François Brunault | I turned my comment into an answer. | |
| Oct 5, 2020 at 14:06 | answer | added | François Brunault | timeline score: 4 | |
| Oct 5, 2020 at 14:00 | comment | added | Zsbán Ambrus | @FrançoisBrunault Correct, and I think you should post that as an answer. | |
| Oct 5, 2020 at 10:34 | comment | added | Alexander | Cross-ratio can be used in finite field as well | |
| Oct 4, 2020 at 10:32 | comment | added | Gerry Myerson | Can one not prove by just plugging in and doing the algebra that $f(g(f(x)))=g(f(g(x)))$? | |
| Oct 3, 2020 at 19:28 | comment | added | François Brunault | These two involutions generate a group of order 6 isomorphic to the symmetric group $S_3$ (this is true over any field $k$, viewing these two involutions acting on the projective line $\mathbb{P}^1(k)$). This corresponds to the different values of the cross-ratio when you permute the arguments: en.wikipedia.org/wiki/Cross-ratio#Six_cross-ratios | |
| Oct 3, 2020 at 19:11 | history | edited | LSpice | CC BY-SA 4.0 |
Proofreading
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| Oct 3, 2020 at 18:58 | history | asked | Alexander | CC BY-SA 4.0 |