Timeline for What is definition of branched covering?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 12, 2022 at 5:26 | comment | added | Ryan Budney | For motivation, my "mental shortcut" definition is that branched covers look locally like non-constant complex analytic maps (of complex curves). The branch points are where the derivative is zero. | |
| May 11, 2022 at 20:04 | answer | added | Sam Nead | timeline score: 2 | |
| May 11, 2022 at 19:52 | comment | added | Ryan Budney | I'm used to a slightly different definition than what @NickL suggests. I do not think the map has to be one-to-one on the branch set. en.wikipedia.org/wiki/Branched_covering | |
| May 11, 2022 at 19:04 | comment | added | Nick L | I cannot access the paper, but it seems to me that the definition of branched covering is quite standardized. It is a map which is a homeomorphism on a (usually closed ) subset and a covering map (usually finite degree) on its complement. Is there any reason why it would differ from that? | |
| May 11, 2022 at 18:33 | history | asked | Usa | CC BY-SA 4.0 |