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arxiv: 1111.4914 · v1 · submitted 2011-11-21 · 🧮 math.AG · math.AC

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Perfectoid spaces

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classification 🧮 math.AG math.AC
keywords characteristiccertainnaturalperfectoidspacesalmostcasesclass
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We introduce a certain class of so-called perfectoid rings and spaces, which give a natural framework for Faltings' almost purity theorem, and for which there is a natural tilting operation which exchanges characteristic 0 and characteristic p. We deduce the weight-monodromy conjecture in certain cases by reduction to equal characteristic.

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