Pentes en cohomologie rigide et F-isocristaux unipotents

Pentes en cohomologie rigide et F-isocristaux unipotents
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Pentes en cohomologie stricte et F-isocristaux 单能

DOI:
10.1007/s002290050212
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发表时间:
1999
影响因子:
0.6
通讯作者:
Bernard Le Stum
Bernard Le Stum
中科院分区:
数学4区
文献类型:
--
作者:
Bruno Chiarellotto;Bernard Le Stum

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研究了正特征完备域上代数簇的刚性上同调和紧支集的刚性上同调的Frobenius斜率。证明了光滑簇上的幂幺过收敛F-同晶有一个斜率滤子,其梯度部分是纯的。
We study the slopes of Frobenius on the rigid cohomology and the rigid cohomology with compact support of an algebraic variety over a perfect field of positive characteristic. We then prove that any unipotent overconvergentF-isocrystal on a smooth variety has a slope filtration whose graded parts are pure.