Torsion finiteness conjecture for smooth affinoid rigid spaces

Let CC) be an algebraically closed complete non-archimedean extension of \bQp\bQ_p, with ring of integers \bOC\bO_C. Let XX be a smooth affinoid rigid space over CC.

Torsion finiteness conjecture.

  1. For all iZi\in \mathbb{Z}, the torsion subgroup of
Hproeˊti(X,Zp)H^i_{\operatorname{pro\acute{e}t}}(X, \mathbb{Z}_p)

is finite. 2. For all nZ0n\in \mathbb{Z}_{\ge 0}, the pnp^n-torsion subgroup of Pic(X)\operatorname{Pic}(X) is finite.

The conjecture concerns integral pp-adic pro-étale cohomology and Picard groups of non-proper rigid-analytic spaces, whose rational cohomology need not be finite-dimensional. The source provides no resolution status.

Sources & referencesView supporting material

Primary source

Guido Bosco, “Torsion in p-adic étale cohomology: remarks and conjectures”, arXiv:2411.07355 (2024).

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