Timeline for Separating property of a finite union of topological disks
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 9, 2022 at 8:27 | comment | added | Leon Staresinic | @WlodAA they are not, if they were, the complement would always be path connected. I am aware that some kind of Alexander duality should be lurking in the background but I am not able to rephrase the equivalence in homological terms. | |
| Sep 9, 2022 at 0:00 | comment | added | Tom Goodwillie | It's not even necessary to assume that your open set is a union of the interiors of finitely many topological closed disks. This has to do with Alexander duality. | |
| Sep 8, 2022 at 23:18 | comment | added | Wlod AA | Are these disks assumed to be pairwise disjoint? | |
| Sep 8, 2022 at 20:39 | history | asked | Leon Staresinic | CC BY-SA 4.0 |