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for questions about deformation theory, including deformations of manifolds, schemes, Galois representations, and von Neumann algebras.

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Grothendieck-Messing theory

Hello, I would like to work out some examples of deformation of isogenies via Grothendieck-Messing theory. Let's take an easy example: Let A be an abelian variety over $k=\overline{\mathbb{F}_p}$ and …
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