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Results tagged with neron-models
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user 7666
6
votes
Accepted
Relative identity component for group algebraic spaces
There is even a reference for algebraic stacks: see M. Romagny, manuscripta math. 136, 1–32 (2011), especially section 2.2.
- 19.6k
7
votes
Accepted
Representability of sheaf of Ext^1 of a Néron model by $\mathbb{G}_m$
First question: no. Assume, to fix ideas, that $R$ is complete with uniformizer $\pi$, $k$ is algebraically closed, and $A$ is an elliptic curve with multiplicative reduction. Denote by $\mathscr{E}$ …
- 19.6k