English

On the logarithmic slice filtration

Algebraic Geometry 2025-08-20 v3 K-Theory and Homology

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 pp-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 KK-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

R2 v1 2026-06-28T15:09:55.966Z