Timeline for Definition of $M_{1,0}$
Current License: CC BY-SA 4.0
6 events
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| Sep 15 at 3:34 | history | edited | LSpice | CC BY-SA 4.0 |
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| Sep 14 at 21:00 | history | edited | Dori Bejleri | CC BY-SA 4.0 |
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| Sep 14 at 20:56 | comment | added | Dori Bejleri | @WillSawin Yeah I think you are right to be skeptical. I originally thought the extension should just be the product in this case but that doesn't seem right. | |
| Sep 14 at 20:52 | comment | added | Will Sawin | I am skeptical of the last sentence. First you seem to be working with the quotient of a scheme over $S$ by a group scheme over $S$, where $S$ is itself a stack $\mathcal M_{1,1}$, which I don't think is what is usually meant by the quotient of schemes by groups. Second it is not true that $(X/G)/H$ can always be expressed as the quotient of $X$ by some extension of $G$ by $H$. It may be in this case but one needs to check. | |
| Sep 14 at 20:40 | history | edited | Dori Bejleri | CC BY-SA 4.0 |
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| Sep 14 at 20:32 | history | answered | Dori Bejleri | CC BY-SA 4.0 |