The classification of $p$-divisible groups over 2-adic discrete valuation rings

Details The classification of $p$-divisible groups over 2-adic discrete valuation rings The classification of $p$-divisible groups over 2-adic discrete valuation rings

2010-07-12

arxiv.org/abs/1007.1904v3

Mathematics

Number Theory

Final Version (with improved proofs and some re-ordering of sections). To appear in Math. Res. Lett

Scientific paper

Let $\mathscr{O}_K$ be a 2-adic discrete valuation ring with perfect residue field $k$. We classify $p$-divisible groups and $p$-power order finite flat group schemes over $\mathscr{O}_K$ in terms of certain Frobenius module over $\mathfrak{S}:=W(k)[[u]]$. We also show the compatibility with crystalline Dieudonn\'e theory and associated Galois representations. Our approach differs from Lau's generalization of display theory, and we additionally obtain the the compatibility with associated Galois representations.

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