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arXiv 0810.2058math.AGmath.KT
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实簇的积分Deligne上同调

Integral Deligne Cohomology for Real Varieties

Pedro F. dos Santos, Paulo Lima-Filho

摘要:

我们发展了光滑真簇的积分型Deligne上同调。为此,在复情形下奇异上同调所起的作用必须由普通的二次G-等变上同调所取代,其中G=Gal(C/R)。这是奇异上同调的G-等变对应。我们建立了理论的基本性质,并给出了权重为1和2的二维群的几何解释。

英文摘要:

We develop an integral version of Deligne cohomology for smooth proper real varieties. For this purpose the role played by singular cohomology in the complex case has to be replaced by ordinary bigraded G-equivariant cohomology, where G=Gal(C/R). This is the G-equivariant counterpart of singular cohomology. We establish the basic properties of the theory and give a geometric interpretation for the groups in dimension 2 in weights 1 and 2.

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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