For any smooth connected linear algebraic group $G$ over an algebraically closed field $k$, we describe the Picard group of the universal moduli stack of principal $G$-bundles over pointed smooth $k$-projective curves.

中文翻译：

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尖光滑曲线上主丛的全模叠的 Picard 群

对于任何光滑连通的线性代数群$G$在代数闭域上$ķ$，我们描述了本金的通用模堆栈的 Picard 群$G$- 捆绑在尖光滑$ķ$-投影曲线。