On the derived category of 1-motives

On the derived category of 1-motives
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关于1-动机的派生范畴

DOI:
10.24033/ast.998
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发表时间:
2010
期刊:
Astérisque
影响因子:
--
通讯作者:
Bruno Kahn
Bruno Kahn
中科院分区:
--
文献类型:
--
作者:
L. Barbieri;Bruno Kahn

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我们考虑具有指数特征p的完美域k上的Deligne 1-motives范畴及其在求逆p后的合适精确结构的导出范畴。作为第一个结果,我们提供了一个完全忠实的嵌入到Voevodsky的三角化几何动机范畴的etale版本中。我们的第二个主要结果是,这个完全嵌入“几乎”有一个左伴随,我们称之为\LAlb。应用到动机的品种,我们因此得到一个有界的复杂的1动机,我们计算充分的光滑品种和部分奇异品种。作为应用,我们给出了Roitman型定理(特征为0)的动机证明.
We consider the category of Deligne 1-motives over a perfect field k of exponential characteristic p and its derived category for a suitable exact structure after inverting p. As a first result, we provide a fully faithful embedding into an etale version of Voevodsky's triangulated category of geometric motives. Our second main result is that this full embedding ``almost" has a left adjoint, that we call \LAlb. Applied to the motive of a variety we thus get a bounded complex of 1-motives, that we compute fully for smooth varieties and partly for singular varieties. As an application we give motivic proofs of Roitman type theorems (in characteristic 0).
DOI: 10.1007/3-540-27950-4
发表时间: 2005-10
期刊: --
影响因子: --
作者:
柏原 正樹;P. Schapira
通讯作者: 柏原 正樹;P. Schapira
DOI: --
发表时间: 2010
影响因子: 4.9
作者:
S.Saito;K.Sato
通讯作者: K.Sato