Timeline for When is a pure braid split? [duplicate]
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| Feb 27, 2021 at 20:14 | comment | added | Zen | It seems the solution to my problem can be found in a 1991 paper: SPLIT BRAIDS STEPHEN P. HUMPHRIES. I wonder whether that is implemented in the programs such as flipper, or perhaps the more general case of determining the word of the constituent braid formed by the tubes. | |
| Feb 27, 2021 at 1:40 | comment | added | Zen | I am afraid I either closed this question too early -- or I get the definition of reduced braids wrong. Since I believe that if braids would run in tubes that form the braid a_1 a_2^-1 a_1 a_2^-1 a_1 a_2^-1 this would be a reduced braid. But I could not move the tubes apart while moving the top and bottom of the strands synchronously. Or I possibly didn't correctly understand the other questions. | |
| Feb 27, 2021 at 1:16 | history | edited | Zen | CC BY-SA 4.0 |
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| Feb 27, 2021 at 1:05 | history | edited | Zen | CC BY-SA 4.0 |
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| Feb 27, 2021 at 0:59 | history | edited | Zen | CC BY-SA 4.0 |
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| Feb 26, 2021 at 21:52 | history | edited | Zen | CC BY-SA 4.0 |
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| Feb 26, 2021 at 21:32 | history | closed | CommunityBot | Duplicate of Algorithm for identifying reducible braids | |
| Feb 26, 2021 at 19:49 | comment | added | Ian Agol | I think you're asking for whether the associated mapping class is reducible. If so, then this is a repeat of this question: mathoverflow.net/q/343156/1345 So I suggest in that case that this question be closed as a repeat. | |
| Feb 26, 2021 at 18:21 | review | First posts | |||
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| Feb 26, 2021 at 18:17 | history | asked | Zen | CC BY-SA 4.0 |