Timeline for How to show an invariant subfield of rational function field $\mathbb{Q}(x)$ under a certain group action is actually a simple extension?
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 21, 2021 at 16:05 | comment | added | user178596 | Thx a lot! So the guess I made above is seemingly correct. But I still wanna know if $\alpha$ is a surjection. | |
| May 21, 2021 at 15:35 | history | answered | GNiklasch | CC BY-SA 4.0 |