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Crystalline representations and $p$-adic Hodge theory for non-commutative algebraic varieties

Published 24 Sep 2023 in math.AG and math.KT | (2309.13654v2)

Abstract: Let $\mathcal{T}$ be an $\mathcal{O}K$-linear idempotent-complete, small smooth proper stable $\infty$-category, where $K$ is a finite extension of $\mathbb{Q}_p$. We give a Breuil-Kisin module structure on the topological negative cyclic homology $\pi_i{\rm TC}-(\mathcal{T}/\mathbb{S}[z];\mathbb{Z}_p)$, and prove a $K$-theory version of Bhatt-Morrow-Scholze's comparison theorems. Moreover, using Gao's Breuil-Kisin $G_K$-module theory and Du-Liu's $(\varphi,\hat{G})$-module theory, we prove the $\mathbb{Z}_p[G_K]$-module $T{A_{\rm inf}}(\pi_i{\rm TC}-(\mathcal{T}/\mathbb{S}[z];\mathbb{Z}_p){\vee})$ is a $\mathbb{Z}p$-lattice of a crystalline representation. As a corollary, if the generic fibre of $\mathcal{T}$ admits a geometric realization in the sense of Orlov, we prove a comparison theorem between $K(1)$-local $K$ theory of the generic fibre and topological cyclic periodic homology theory of the special fibre with $B{\rm crys}$-coefficients, in particular, we prove the $p$-adic representation of the $K(1)$-local $K$-theory of the generic fibre is a crystalline representation, this can be regarded as a non-commutative analogue of $p$-adic Hodge theory for smooth proper varieties proved by Tsuji and Faltings. This is the full version of arXiv:2305.00292, containing additional details and results.

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