Timeline for $Pic$ of the stack of elliptic curves vs. $Pic$ of the coarse space
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 10, 2013 at 14:03 | history | bounty ended | IMeasy | ||
| Nov 9, 2013 at 18:26 | vote | accept | IMeasy | ||
| Nov 8, 2013 at 6:30 | comment | added | naf | One can use specialisation to deduce the result over any field: both the Hodge bundle and $O_{\mathbb{P}^1}(1)$ are defined over $Spec(\mathbb{Z})$ and generate the relevant Picard groups | |
| Nov 8, 2013 at 4:10 | history | edited | Jonathan Wise | CC BY-SA 3.0 |
fixed typo
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| Nov 7, 2013 at 4:13 | history | answered | Jonathan Wise | CC BY-SA 3.0 |