Displays and formal p-divisible groups
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- Lau, E. Invent. math. (2008) 171: 617. doi:10.1007/s00222-007-0090-x
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Over p-adic Nagata rings, formal p-divisible groups are classified by nilpotent displays according to T. Zink. We extend this result to arbitrary p-adic rings. The proof uses the Grothendieck–Illusie deformation theory of truncated p-divisible groups.