English

On the de Rham flip-flopping in dual towers

Number Theory 2026-03-10 v1 Algebraic Geometry

Abstract

We prove a version of de Rham and Hyodo-Kato flip-flopping for dual towers of rigid analytic spaces including those coming from dual basic local Shimura varieties. The main tool are comparison theorems expressing the two cohomologies as pro-\'etale cohomology of corresponding relative period sheaves that, by definition, satisfy pro-\'etale descent. As an application, we show that de Rham and Hyodo-Kato cohomologies of finite level coverings of the Drinfeld space of any dimension dd over KK are admissible as representations of GLd+1(K)\mathbb{GL}_{d+1}(K).

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Cite

@article{arxiv.2603.07869,
  title  = {On the de Rham flip-flopping in dual towers},
  author = {Gabriel Dospinescu and Wiesława Nizioł},
  journal= {arXiv preprint arXiv:2603.07869},
  year   = {2026}
}

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