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arXiv 1502.02854math.NT
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对数格式的相对和过收敛de Rham-Witt上同调

On relative and overconvergent de Rham-Witt cohomology for log schemes

Hironori Matsuue

摘要:

我们构造了相对log de Rham-Witt复形。这是Langer-Zink的相对de Rham-Witt复形到log格式的推广。证明了log de Rham-Witt复形的超上同调与相对对数结晶上同调的比较定理。我们构造了相对严格半稳定对数格式的$p$ -进权谱序列.当基对数概型是对数点时,我们证明了它在Witt环的分数域张量后在$E_2$退化。我们还将Davis-Langer-Zink的过收敛de Rham-Witt复形的定义推广到与完满域上具有简单正规交叉因子的光滑概形相关的对数格式$(X,D)$.最后,我们将它的超上同调与$X \setminus D$的刚性上同调进行了比较。

英文摘要:

We construct the relative log de Rham-Witt complex. This is a generalization of the relative de Rham-Witt complex of Langer-Zink to log schemes. We prove the comparison theorem between the hypercohomology of the log de Rham-Witt complex and the relative log crystalline cohomology in certain cases. We construct the $p$-adic weight spectral sequence for relative proper strict semistable log schemes. When the base log scheme is a log point, We show it degenerates at $E_2$ after tensoring with the fraction field of the Witt ring. We also extend the definition of the overconvergent de Rham-Witt complex of Davis-Langer-Zink to log schemes $(X,D)$ associated with smooth schemes with simple normal crossing divisor over a perfect field. Finally, we compare its hypercohomology with the rigid cohomology of $X \setminus D$.

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