Timeline for Fundamental group of a generalized connected sum
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 18 at 8:15 | answer | added | HJRW | timeline score: 10 | |
| Apr 18 at 2:39 | answer | added | Jan Nienhaus | timeline score: 1 | |
| Apr 17 at 19:28 | comment | added | Jeremy | @RyanBudney could you please explain more? Perhaps give an example or a sketch? | |
| Apr 17 at 19:27 | history | edited | Jeremy | CC BY-SA 4.0 |
added 10 characters in body
|
| Apr 17 at 19:06 | history | edited | Jeremy | CC BY-SA 4.0 |
added 47 characters in body
|
| Apr 17 at 18:31 | comment | added | Ryan Budney | You can get presentations by thinking about a $2$-skeleton for the manifold. For this you need a $2$-skeleton for $M$ and $N$ with a tubular neighbourhood of $S$ drilled out. Once you have that, it's just the VanKampen theorem. | |
| Apr 17 at 18:02 | comment | added | Moishe Kohan | Also, read more carefully the linked Wikipedia article: the connected sum corresponds to the case when $S$ is a singleton. | |
| Apr 17 at 17:49 | answer | added | Sam Nead | timeline score: 2 | |
| Apr 17 at 17:18 | history | asked | Jeremy | CC BY-SA 4.0 |