Timeline for Are Eilenberg-MacLane spaces limits of manifolds?
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 3 at 2:56 | comment | added | Dev Sinha | The iterated bar construction model for Eilenberg-MacLane spaces is not a manifold but is "geometric". See youtube.com/watch?v=RYHoZDogBlU&t=3s | |
| May 23 at 11:09 | vote | accept | Michael Albanese | ||
| May 23 at 3:07 | comment | added | Ryan Budney | @Nandor: yes it is. I don't think I know any category other than connected, oriented manifolds where it is defined. | |
| May 22 at 20:43 | comment | added | Antonius | @Ryan Budney: is the connected sum a manifold? | |
| May 22 at 16:43 | comment | added | Ryan Budney | @Nandor: one way would be to take a connect-sum of $k$ copies of $S^1 \times S^n$, and then take the natural inclusions as $n$ varies. | |
| May 22 at 12:12 | history | became hot network question | |||
| May 22 at 11:54 | answer | added | Tom Goodwillie | timeline score: 21 | |
| May 22 at 8:55 | comment | added | Antonius | @Tom Goodwillie: just out of curiosity, how would you represent a bouquet of circles? | |
| May 22 at 1:29 | comment | added | Tom Goodwillie | I believe that any homotopy type that is represented by a countable CW complex is also represented by an increasing union of closed manifolds. | |
| May 22 at 0:04 | history | asked | Michael Albanese | CC BY-SA 4.0 |