Hyperdescent and étale K-theory

Hyperdescent and étale K-theory
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超下降和 étale K 理论

DOI:
10.1007/s00222-021-01043-3
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发表时间:
2019
影响因子:
3.1
通讯作者:
A. Mathew
A. Mathew
中科院分区:
数学1区
文献类型:
--
作者:
Dustin Clausen;A. Mathew

文献摘要

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我们研究代数K-理论的代数层化,称为代数K-理论。我们的主要结果表明,Etale K-理论与定义在范畴水平上的非交换不变量塞尔默K-理论非常接近.因此,我们表明,童话K-理论有令人惊讶的良好的性能,整体和没有有限性假设。一个关键的理论成分是区别,我们详细调查,层和超层的光谱的étale网站。
We study the étale sheafification of algebraic K-theory, called étale K-theory. Our main results show that étale K-theory is very close to a noncommutative invariant called Selmer K-theory, which is defined at the level of categories. Consequently, we show that étale K-theory has surprisingly well-behaved properties, integrally and without finiteness assumptions. A key theoretical ingredient is the distinction, which we investigate in detail, between sheaves and hypersheaves of spectra on étale sites.