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arXiv math/0205130math.AGmath.RT
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主F-丛的模空间

Moduli spaces of principal F-bundles

Yakov Varshavsky

摘要:

本文构造了一类(主)$F$ -丛的模空间,称之为(主)$F$ -丛的模空间,并研究了它们的基本性质.这些空间与由有限域上的光滑射影几何连通曲线、分裂约化群$G$和$(\check{G})^n/Z(\check{G})$的不可约代数表示$\ov{\om}$组成的三元组相关联。我们的空间推广了Drinfeld和Lafforgue所研究的$F$ -层的模空间,它对应于$G=GL_r$和$\ov{\om}$是标准表示及其对偶的张量积的情况。$F$ -丛的模空间的重要性是由于相信Langlands对应应该在它们的上同调中实现。

英文摘要:

In this paper we construct certain moduli spaces, which we call moduli spaces of (principal) $F$-bundles, and study their basic properties. These spaces are associated to triples consisting of a smooth projective geometrically connected curve over a finite field, a split reductive group $G$, and an irreducible algebraic representation $\ov{\om}$ of $(\check{G})^n/Z(\check{G})$. Our spaces generalize moduli spaces of $F$-sheaves, studied by Drinfeld and Lafforgue, which correspond to the case $G=GL_r$ and $\ov{\om}$ is the tensor product of the standard representation and its dual. The importance of the moduli spaces of $F$-bundles is due to the belief that Langlands correspondence should be realized in their cohomology.

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