Extensions de Lie p-adiques et (Phi, Gamma)-modules

Abstract : In this thesis, we study some theorical aspects of the theory of p-adic representations of the absolute Galois group of K, where K is a p-adic field. First, we try to give a characterization of the p-adic Lie extensions of K for which one can build a theory of (φ,Γ)-modules. Then, we study the theory of (φ,τ)-modules. This thesis consists of five chapters. The first one introduces the results on p-adic representations, (φ,Γ)-modules and p-adic Hodge theory which are needed in the other chapters. In the second chapter, we try to understand which p-adic Lie extensions of K can be used in order to build a theory of (φ,Γ)-modules and we prove that, under the additional assumption that the Frobenius is of finite height, such extensions are, up to a finite extension, Lubin-Tate extensions. The third chapter lays out the theory of locally analytic vectors needed for the fourth and fifth chapters. The fourth chapter uses the theory of locally analytic vectors to prove the overconvergence of (φ,τ)-modules. In the fifth chapter, we use results obtained in the fourth chapter in order to characterize semi-stable and potentially semi-stable representations of the absolute Galois group of K from their (φ,τ)-modules, and we show how to recover the invariants Dcris and Dst attached to a representation V from its (φ,τ)-module.
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Léo Poyeton. Extensions de Lie p-adiques et (Phi, Gamma)-modules. Théorie des nombres [math.NT]. Université de Lyon, 2019. Français. ⟨NNT : 2019LYSEN007⟩. ⟨tel-02148215⟩

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