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arXiv 2403.03056math.AGmath.KT
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论对数切片滤过

On the logarithmic slice filtration

Federico Binda, Doosung Park, Paul Arne Østvær

AI总结:

本文在对数母题同伦论中研究切片滤过,证明其与拓扑循环同调上的BMS滤过及迹映射相容,并证明对数K-理论的Kummer平展超层化的非常有效切片可计算Lichtenbaum平展母题上同调。

摘要:

我们考虑对数母题同伦论中的切片滤过。我们的主要结果建立了与(拓扑、对数)Hochschild同调及相关不变量上的Beilinson、BMS和HKR滤过之间被猜想的相容性。在允许奇点消解的理想域情形下,我们证明切片滤过实现了$p$-完备拓扑循环同调上的BMS滤过。此外,母题迹映射与切片滤过和BMS滤过相容,从而给出从母题切片谱序列到BMS谱序列的自然态射。最后,我们考虑对数$K$-理论的Kummer平展超层化,并证明其非常有效切片计算Lichtenbaum平展母题上同调。

英文摘要:

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 $p$-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 étale hypersheafification of logarithmic $K$-theory and show that its very effective slices compute Lichtenbaum étale motivic cohomology.

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