Motivic filtration conjecture for relative topological periodic homology

Let RR be an animated Zp\mathbf{Z}_p-algebra, and let \mathbblΔ^R/Zp[![p~]!]\hat{{\mathbbl{\Delta}}}_{R/\mathbf{Z}_p[\\![{\widetilde{p}}]\\!]} be the Nygaard completion of p~ΩR{{\widetilde{p}}\Omega}_R. Let Fmot\mathrm{F}^\star_\mathrm{mot} denote a motivic filtration.

Motivic filtration conjecture. The spectrum TP(R/X(p))\mathrm{TP}(R/X(p)) admits a motivic filtration satisfying

grmotiTP(R/X(p))\mathbblΔ^R/Zp[![p~]!][2i]RϵR.\mathrm{gr}^i_\mathrm{mot}\mathrm{TP}(R/X(p))\simeq \hat{{\mathbbl{\Delta}}}_{R/\mathbf{Z}_p[\\![{\widetilde{p}}]\\!]}[2i]\otimes_R\epsilon^R.

This expectation is motivated by computations for polynomial algebras and predicts that relative topological periodic homology is governed by Nygaard-completed {{\widetilde{p}}-de Rham/prismatic cohomology; its status is not resolved in the supplied text.

Sources & referencesView supporting material

Primary source

Sanath K Devalapurkar, “Topological Hochschild homology, truncated Brown-Peterson spectra, and a topological Sen operator”, arXiv:2303.17344 (2023).

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