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rigid analytic varieties, affinoid varieties, strictly convergent power series over non-archimedean fields
3
votes
Accepted
Closed complement of an open immersion of rigid analytic spaces
No, it's not true that if $X$ is a rigid $K$-space and $U\subseteq X$ is open, that $Z:=X-U$ can be given the structure of an adic space (let alone a rigid $K$-space) such that the tautological map $i …
1
vote
Reduction of elliptic curves over local fields
Of course the correct answer is provided by Chris Wuthrich in the comments. But, let me comment a fun, ‘high-brow’ way of seeing this.
Choose an integer $p\ne N\geqslant 3$ and let $\mathcal{Y}(N)$ be …