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Results tagged with formal-schemes
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user 108274
12
votes
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Motivation for Henselian rings in algebraic geometry
In Andrew Kobin's script on Algebraic Geometry
I found on page 355 a comment I would like better understand. It states
Another
way to view formal smoothness is as an abstraction of Hensel's Lemma.
…
- 260
6
votes
1
answer
776
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Formal Schemes Methods: Applications
Possibly this question is bit too broad but up to now I was not able to find a satisfying answer.
Let $X$ be a locally
Noetherian scheme and $X' \subset X$ be a closed subscheme of $X$ which is defi …
- 9,229
0
votes
0
answers
180
views
Theorem on Formal Schemes
I have few questions about the proof of Thm 7.5 from P. Wagreich's paper "Elliptic Singularities of Surfaces" (page 452):
Denote by $\mathcal{N}$ the kernel of $A \to H^0(O_Z)$ (sorry, I haven't f …
- 6,018