Timeline for Coproduct on coordinate ring of finite algebraic group
Current License: CC BY-SA 3.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 13, 2012 at 2:08 | comment | added | Florian Eisele | Are you sure $k[\mathbb Z/n\mathbb Z]$ is self-dual? If $char(k)=p$ and $n=p$, then $k[t](t^p-1)$ is not semisimple as an algebra, but its dual (the coordinate ring $k\oplus \ldots\oplus k$) is. | |
| Feb 13, 2012 at 1:47 | history | answered | Rami | CC BY-SA 3.0 |