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arXiv 2109.08698math.AGmath.RT
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关于等变丛及其模空间

On equivariant bundles and their moduli spaces

Chiara Damiolini

摘要:

设$G$是一个代数群,$Γ$是$G$的自同构的有限子群.还修复了一个可能分支的$Γ$ -覆盖$\widetilde{X} \to X$。在这种设置中,可以定义$(Γ,G)$-$\widetilde{X}$上的bundles的概念,并且在本文中,我们针对$X$上的适当群$\mathcal{H}$,根据我们打算参数化的$(Γ,G)$-bundles的本地类型,用$\mathcal{H}$-$X$上的bundles来描述这些对象。这延伸了,并在此过程中澄清,巴拉吉和Seshadri的早期工作。

英文摘要:

Let $G$ be an algebraic group and $Γ$ a finite subgroup of automorphisms of $G$. Fix also a possibly ramified $Γ$-covering $\widetilde{X} \to X$. In this setting one may define the notion of $(Γ,G)$-bundles over $\widetilde{X}$ and, in this paper, we give a description of these objects in terms of $\mathcal{H}$-bundles on $X$, for an appropriate group $\mathcal{H}$ over $X$ which depends on the local type of the $(Γ,G)$-bundles we intend to parametrize. This extends, and along the way clarifies, an earlier work of Balaji and Seshadri.

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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