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arXiv 1004.1884math.AG
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稳定层的导出模空间

The derived moduli space of stable sheaves

K. Behrend, I. Ciocan-Fontanine, J. Hwang, M. Rose

摘要:

利用分次环上有限分次模的导模,构造了光滑投射簇上稳定层的导概型。我们这样做,通过除以一个合适的代数规范群的Ciocan-Fontanine和Kapranov的作用量的派生计划。我们表明,自然的概念GIT稳定的分次模再现稳定层。

英文摘要:

We construct the derived scheme of stable sheaves on a smooth projective variety via derived moduli of finite graded modules over a graded ring. We do this by dividing the derived scheme of actions of Ciocan-Fontanine and Kapranov by a suitable algebraic gauge group. We show that the natural notion of GIT-stability for graded modules reproduces stability for sheaves.

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