Timeline for Is there a (simple) criterion for membership to the base field of an inseparable extension?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| yesterday | vote | accept | en-drix | ||
| Dec 8 at 21:12 | comment | added | darij grinberg | Probably something with derivations ("all derivations vanish") instead of automorphisms ("all automorphisms fix"). There has been a recent (very technical) work by Brantner and Waldron on inseparable Galois theory: people.maths.ox.ac.uk/brantner/… | |
| Dec 8 at 20:37 | answer | added | LSpice | timeline score: 3 | |
| Dec 8 at 12:17 | comment | added | Joe Silverman | Your first statement about the separable case isn't quite accurate, e.g., $f(x)=(x^2-2)(x^2-3)$ and $F=\mathbb Q$. But you probably meant to insist that $f(x)$ be irreducible in $F[x]$. | |
| Dec 8 at 8:59 | history | asked | en-drix | CC BY-SA 4.0 |