Timeline for Cut out an open ball from a 2-manifold and glue the boundary
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 15, 2020 at 18:56 | vote | accept | Rahul Sarkar | ||
| Feb 15, 2020 at 15:23 | answer | added | Moishe Kohan | timeline score: 3 | |
| Feb 15, 2020 at 11:41 | comment | added | Rahul Sarkar | @MoisheKohan the existence of a collar neighborhood is precisely my issue. is it true that this collar exists in the complement of $\text{int} U$? | |
| Feb 14, 2020 at 20:33 | comment | added | Moishe Kohan | Hint: Try to prove this first for $M={\mathbb R}^2$ and $U$ a round disk. Then use the fact that $\partial U$ has a collar in $M$. | |
| Feb 14, 2020 at 19:18 | history | asked | Rahul Sarkar | CC BY-SA 4.0 |