Timeline for ‘Sur les groupes de tresses’ by Egbert Brieskorn
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
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| Jun 25, 2023 at 10:53 | history | edited | LSpice | CC BY-SA 4.0 |
Too much `\text`, or too little intra-`\text` math mode
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| Jun 22, 2023 at 6:10 | history | edited | RKS | CC BY-SA 4.0 |
deleted 6 characters in body
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| Jun 22, 2023 at 5:31 | history | edited | RKS | CC BY-SA 4.0 |
added 12 characters in body; edited title
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| Jun 21, 2023 at 13:33 | history | edited | LSpice | CC BY-SA 4.0 |
TeX and link to article, while this is on the front page
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| Jun 21, 2023 at 13:24 | history | edited | RKS | CC BY-SA 4.0 |
Editing after a long time as I still do not have an answer...
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| Jul 5, 2018 at 14:40 | comment | added | Phil Tosteson | Sorry I must have misread your map | |
| Jul 5, 2018 at 4:12 | comment | added | RKS | It has non-compact fiber, how it is proper? | |
| Jul 4, 2018 at 13:57 | history | edited | RKS | CC BY-SA 4.0 |
added 6 characters in body
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| Jul 4, 2018 at 9:51 | comment | added | Najib Idrissi | I know it's different, what I'm seeing is that I expect the same techniques to work. Your map is like translation + symmetry followed by projection. | |
| Jul 4, 2018 at 9:22 | history | edited | RKS | CC BY-SA 4.0 |
added 182 characters in body
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| Jul 4, 2018 at 9:09 | comment | added | RKS | Thanks for your response! Fadell-Neuwirth considers projection maps. Do you mean the same for the second map. In the above case it is different. | |
| Jul 4, 2018 at 7:44 | comment | added | Najib Idrissi | I would try doing it in two steps, first $\mathbb{C}^n \setminus \{ z_i = \pm z_j \} \to \mathbb{C}^n \setminus \{ z_i = z_j \}$, $(z_1,\dots) \mapsto (z_1^2, \dots)$ looks like a covering space of degree $2$. Then you have the usual Fadell–Neuwirth fibration which forgets a point in a configuration space (see their paper for the proof that it's a fibration). Of course writing this I now realize that the first map has a problem at $z_i = 0$ so maybe it's more complicated. | |
| Jul 4, 2018 at 7:38 | history | edited | RKS | CC BY-SA 4.0 |
deleted 3 characters in body
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| Jul 4, 2018 at 7:25 | review | First posts | |||
| Jul 4, 2018 at 9:12 | |||||
| Jul 4, 2018 at 7:23 | history | asked | RKS | CC BY-SA 4.0 |