Timeline for Riemann-Hurwitz for real maps
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 19, 2019 at 22:33 | comment | added | aglearner | Will, that is interesting. I wonder still if there is a positive statement. For example, singularities of maps $S\to \mathbb CP^1$, $S\to \mathbb CP^1$ of degrees $10$ and $20$ can not be the same. I would find it really surprising anything like this exists. | |
| Dec 19, 2019 at 14:37 | comment | added | Will Sawin | @aglearner You can build an example with the same genus but opposite degrees using the same gluing-opposite-orientation strategy. | |
| Dec 19, 2019 at 8:54 | comment | added | aglearner | That's cute! Though not what I was hoping for :) ... I guess, in the end I would like to be able to find the degree of the map, provided I know the genus. | |
| Dec 19, 2019 at 8:49 | vote | accept | aglearner | ||
| Dec 19, 2019 at 2:42 | history | answered | Will Sawin | CC BY-SA 4.0 |