Timeline for Functorial multiplication on commutative rings
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 22, 2017 at 7:24 | vote | accept | Alexander Braverman | ||
| Dec 20, 2017 at 17:45 | comment | added | Tyler Lawson | @AlexanderBraverman That's a fair question. The argument above does not quite prove uniqueness, e.g. in the case where $G$ is the discrete group $\Bbb Z/2$, but we also have not used the constraint that $f$ should define an associative multiplication yet. There should be some mileage yet to get out of this. | |
| Dec 20, 2017 at 9:19 | comment | added | Alexander Braverman | Thanks. I wonder if this argument can be extended to algebras in more general monoidal categories. For example, rings with $G$-action, where $G$ is some algebraic group. | |
| Dec 19, 2017 at 16:16 | history | answered | Tyler Lawson | CC BY-SA 3.0 |