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arXiv 1301.0872math.KT
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Etale和motivic上同调中的不稳定运算

Unstable operations in étale and motivic cohomology

Bertrand Guillou, Charles Weibel

摘要:

我们对$H_\et^n(-,\muell{i})$上的所有平展上同调运算进行了分类,证明它们都是由Epstein构造的。我们还构造操作$P^a$上的模$\ell$动机上同调群$H^{p,q}$,不同于Voevodsky的操作,我们用它们来分类所有动机上同调运算$H^{p,1}$和$H^{1,q}$,并建议一个一般的分类。

英文摘要:

We classify all étale cohomology operations on $H_\et^n(-,\muell{i})$, showing that they were all constructed by Epstein. We also construct operations $P^a$ on the mod-$\ell$ motivic cohomology groups $H^{p,q}$, differing from Voevodsky's operations; we use them to classify all motivic cohomology operations on $H^{p,1}$ and $H^{1,q}$ and suggest a general classification.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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