On the logarithmic slice filtration
Abstract
We consider slice filtrations in logarithmic motivic homotopy theory. Our main results establish conjectured compatibilities with the Beilinson, BMS, and HKR filtrations on (topological, log) Hochschild homology and related invariants. In the case of perfect fields admitting resolution of singularities, we show that the slice filtration realizes the BMS filtration on the -completed topological cyclic homology. Furthermore, the motivic trace map is compatible with the slice and BMS filtrations, yielding a natural morphism from the motivic slice spectral sequence to the BMS spectral sequence. Finally, we consider the Kummer \'etale hypersheafification of logarithmic -theory and show that its very effective slices compute Lichtenbaum \'etale motivic cohomology.
Keywords
Cite
@article{arxiv.2403.03056,
title = {On the logarithmic slice filtration},
author = {Federico Binda and Doosung Park and Paul Arne Østvær},
journal= {arXiv preprint arXiv:2403.03056},
year = {2025}
}
Comments
32 pages. Final version, to appear in Geometry & Topology