Timeline for Parabolics and simple roots for a special unitary group: reference request
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 11, 2021 at 16:46 | comment | added | paul garrett | @LSpice, well, both $G$-orbit and isomorphism class without necessarily mentioning $G$-orbits... Many possible logical orderings... (And, yes, haha, just like Johny Carson's mythical "Dr. Al Bendova") | |
| Mar 11, 2021 at 0:20 | comment | added | LSpice | May I also make a suggestion that looking at reductive groups from both ends must indicate that you have been undertaking a careful study of endoscopy? :-) | |
| Mar 11, 2021 at 0:10 | comment | added | LSpice | When you say that $D = (W \oplus W')^\perp$ is independent of choices, you really mean that its $G$-orbit is well determined, right? From the 'intrinsic' point of view, I think of this as the conjugacy of maximal split tori $S$, with the isometry/similitude group of $D$ being the centraliser of $S$. But maybe I missed your point about what you were seeking to describe intrinsically (or about what counts as intrinsic). | |
| Mar 10, 2021 at 23:49 | history | edited | paul garrett | CC BY-SA 4.0 |
added 86 characters in body
|
| Mar 10, 2021 at 23:43 | history | edited | paul garrett | CC BY-SA 4.0 |
added 240 characters in body
|
| Mar 10, 2021 at 23:29 | history | answered | paul garrett | CC BY-SA 4.0 |