Timeline for Poincaré bundle and Weil pairing for Abelian schemes
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Mar 7, 2014 at 13:47 | comment | added | user76758 | Oort's book "Commutative group schemes" has a very nice discussion of both the representability of functor $T \mapsto {\rm{Ext}}^1_T(A_T, {\mathbf{G}}_m)$ by the dual abelian scheme when the latter exists (which is always the case, by the result of Raynaud) and not only the relation of its $n$-torsion with Cartier dual of that of $A$ but also the more subtle issue of relating double-duality on both sides. Oda's paper addresses the double-duality aspect (and much more) in its first section. | |
| Mar 7, 2014 at 13:22 | comment | added | Kestutis Cesnavicius | For the perfectness of the Weil pairing, see Oda "The first de Rham cohomology and Dieudonne modules", esp. Thm. 1.1. | |
| Mar 7, 2014 at 13:04 | answer | added | user19475 | timeline score: 0 | |
| Mar 7, 2014 at 12:48 | answer | added | answer_bot | timeline score: 3 | |
| Mar 7, 2014 at 10:59 | history | asked | user19475 | CC BY-SA 3.0 |