Timeline for extensions, abelian varieties, $\mathbb{G}_m$
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| May 10, 2011 at 13:07 | comment | added | SGP | Many thanks for your clarifications and very informative answer. I did not realise that the principle of Deligne was only up to isogeny. Thanks! | |
| May 10, 2011 at 13:01 | comment | added | mephisto | You are being to kind: it does contradict Deligne's statement. He should have said it is trivial modulo torsion (which is all he needs). | |
| May 10, 2011 at 8:56 | history | edited | Torsten Ekedahl | CC BY-SA 3.0 |
Added comments on original question
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| May 10, 2011 at 6:07 | history | edited | Torsten Ekedahl | CC BY-SA 3.0 |
Added Ext formula.
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| May 10, 2011 at 5:41 | history | answered | Torsten Ekedahl | CC BY-SA 3.0 |