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Étale cohomology of rank one $$\ell $$ ℓ -adic local systems in positive characteristic
Selecta Mathematica ( IF 1.2 ) Pub Date : 2021-06-25 , DOI: 10.1007/s00029-021-00681-y Hélène Esnault , Moritz Kerz
中文翻译:
Étale 上同调 $$\ell $$ ℓ -adic 局部系统的正特征
更新日期:2021-06-28
Selecta Mathematica ( IF 1.2 ) Pub Date : 2021-06-25 , DOI: 10.1007/s00029-021-00681-y Hélène Esnault , Moritz Kerz
We show that in positive characteristic special loci of deformation spaces of rank one \(\ell \)-adic local systems are quasi-linear. From this we deduce the Hard Lefschetz theorem for rank one \(\ell \)-adic local systems and a generic vanishing theorem.
中文翻译:
Étale 上同调 $$\ell $$ ℓ -adic 局部系统的正特征
我们表明,在阶一\(\ell \) -adic 局部系统的变形空间的正特征特殊轨迹中是拟线性的。由此,我们推导出 1 阶\(\ell \) -adic 局部系统的 Hard Lefschetz 定理和一般的消失定理。