Kubrak–Travkin's conical resolution inequality

Let OK\mathcal O_K be the ring of integers of a finite extension of Qp\mathbb Q_p, let kk be its residue field, and let π ⁣:XY\pi\colon X\to Y be a conical resolution over OK\mathcal O_K. The notation X(C)/C×X(\mathbb C)/\mathbb C^\times denotes the homotopy quotient. Kubrak–Travkin's conjecture. For every i0i\geq 0,

dimkHdRi([X/Gm]k/k)dimFpHsingi(X(C)/C×,Fp).\dim_k H^i_{\mathrm{dR}}([X/\mathbb G_m]_k/k)\geq \dim_{\mathbb F_p}H^i_{\mathrm{sing}}(X(\mathbb C)/\mathbb C^\times,\mathbb F_p).

The i=1i=1 case was attributed to Roman Travkin and the first author as a generalized version of an earlier conjecture. The displayed inequality is the proposed extension to all degrees and remains open in the supplied text.

Sources & referencesView supporting material

Primary source

Dmitry Kubrak and Artem Prikhodko, “p-adic Hodge theory for Artin stacks”, arXiv:2105.05319 (2021).

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