Timeline for About the pro-algebraic group structure of $G(\mathbb{C}[[t]])$
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 18, 2014 at 13:27 | vote | accept | Oliver Straser | ||
| Feb 18, 2014 at 12:30 | answer | added | ACL | timeline score: 13 | |
| Feb 18, 2014 at 11:45 | comment | added | Sasha Anan'in | You can replace "reductive" by "linear". Then a more elementary (than S. Carnahan's) answer could consist in taking $\text{GL}$ in place of $G$ closed in $\text{GL}$ and in seeing the fact directly, without "dumb calculations". | |
| Feb 18, 2014 at 10:56 | comment | added | S. Carnahan♦ | Your notation is unfortunate. I suspect you mean the Weil restriction $\operatorname{Res}^{J^\ell}_{J^1} G_{J^\ell}$ instead of the group $G(J^\ell)$ of $J^\ell$-rational points. Algebraicity follows from the facts that $J^1 \to J^\ell$ is finite and flat, and $G$ is affine of finite type. | |
| Feb 18, 2014 at 10:44 | history | asked | Oliver Straser | CC BY-SA 3.0 |