Timeline for What part of the fundamental group is captured by the second homology group?
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
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| Mar 12, 2020 at 17:47 | comment | added | Michael Albanese | @TomGoodwillie Sorry, I only just saw this. Thanks! | |
| Oct 16, 2019 at 11:29 | history | edited | Tom Goodwillie | CC BY-SA 4.0 |
Explained why a statement is true.
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| Oct 16, 2019 at 11:15 | comment | added | Tom Goodwillie | No, but I can explain. I'll edit the answer to explain. | |
| Oct 15, 2019 at 2:16 | comment | added | Michael Albanese | Do you have a reference for the statements in the second paragraph? | |
| Sep 29, 2010 at 20:55 | vote | accept | Daniel Moskovich | ||
| Sep 29, 2010 at 15:27 | comment | added | Ryan Budney | Or a $2$-knot is an $n$-knot when $n=2$. :) | |
| Sep 29, 2010 at 14:57 | comment | added | Autumn Kent | @Tom A 2-knot is just an embedded 2-sphere in the 4-sphere. | |
| Sep 29, 2010 at 14:55 | history | edited | Tom Goodwillie | CC BY-SA 2.5 |
amplified the second to last sentence
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| Sep 29, 2010 at 14:50 | comment | added | Tom Goodwillie | What's a 2-knot, anyway? | |
| Sep 29, 2010 at 11:35 | comment | added | Tim Porter | I was wondering if the recent paper by João Faria Martins (Trans. Amer. Math. Soc. 361 (2009), 4593-4630) is relevant to this, especially as Daniel is looking at 2-knots. | |
| Sep 29, 2010 at 2:34 | history | edited | Tom Goodwillie | CC BY-SA 2.5 |
corrected an error about the $\pi_2$ contribution; added 1 characters in body
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| Sep 29, 2010 at 2:24 | history | answered | Tom Goodwillie | CC BY-SA 2.5 |