Timeline for Greatest element of ${}^IW$
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 6, 2019 at 20:55 | comment | added | Hugh Thomas | Nothing in your proof says that the map to the interval is surjective, and in fact it is not. | |
| Aug 5, 2019 at 7:15 | comment | added | James Cheung | But it seems my proof works. Where does I get wrong? | |
| Aug 3, 2019 at 18:46 | comment | added | Hugh Thomas | For the symmetric group on three letters, with simple roots $\alpha_1,\alpha_2$ and $I=\{\alpha_1\}$, we have that $^IW$ is not an interval in Bruhat order. | |
| Aug 3, 2019 at 3:38 | history | answered | James Cheung | CC BY-SA 4.0 |