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Galois cohomology of $p$-adic fields and $(\varphi, \tau)$-modules

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arxiv 2201.11235 v1 pith:YRB5BWBH submitted 2022-01-26 math.NT

classification math.NT
keywords galoismodulesvarphiadiccharacteristiccohomologyfieldabsolute
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abstract

We construct various explicit Herr complexes that compute the Galois cohomology of a $p$-adic representation of the absolute Galois group of a complete discrete valuation field of characteristic $0$ with a perfect residue field of characteristic $p$, using the associated $(\varphi,\tau)$-modules (defined by Xavier Caruso), instead of $(\varphi,\Gamma)$-modules. We also give an application to $p$-divisible groups.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Multivariable period rings of $p$-adic false Tate curve extension

    math.NT 2025-05 conditional novelty 6.0 of 10

    The paper constructs multivariable period rings for p-adic false Tate curve extensions and shows they bridge (φ,Γ)-modules and (φ,τ)-modules in both categorical and cohomological settings.

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