Timeline for Orbits of action of the split group of type $F_4$
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 19, 2019 at 19:14 | vote | accept | A.Garcia | ||
| Mar 19, 2019 at 13:17 | history | edited | Libli | CC BY-SA 4.0 |
added 1 character in body
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| Mar 19, 2019 at 11:18 | comment | added | Libli | @A.Garcia You are right, I made a mistake in the description of orbits. I will edit. | |
| Mar 19, 2019 at 11:16 | history | edited | Libli | CC BY-SA 4.0 |
Mistakes in the description of orbits
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| Mar 19, 2019 at 6:16 | comment | added | A.Garcia | I agree that $E_6\times \mathbb G_m$ does not act on trace zero matrices, that was my mistake. | |
| Mar 19, 2019 at 6:15 | comment | added | A.Garcia | I am sorry but I am very confused. The book Algebraic Geometry of Parshin Shafarevich et al says that the representation of F4 on the trace zero hyperplane has a 2-dimensional rational quotient. How can this reconcile with what you say? | |
| Mar 18, 2019 at 18:20 | comment | added | A.Garcia | I think there is a mistake. Are you doing $E_6\times \mathbb G_m$? | |
| Mar 13, 2019 at 16:27 | comment | added | Victor Petrov | If the base field is not closed, iv) becomes a union of orbits according to $N(x)\bmod (F^*)^3$, where $N$ is the norm. | |
| Mar 12, 2019 at 22:04 | history | answered | Libli | CC BY-SA 4.0 |