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arXiv · 0908.0313

On Nori's Obstruction to Universal Bundles

Emre Coskun·Ajneet Dhillon·Nicole Lemire
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Abstract

Let $G$ be $Sl_n, Sp(2n)$ or SO(2n). We consider the moduli space $M$ of semistable principal $G$-bundles over a curve $X$. Our main result is that if $U$ is a Zariski open subset of $M$ then there is no universal bundle on $U\times X$.

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Emre Coskun, Ajneet Dhillon, Nicole Lemire. 2009-08-03. On Nori's Obstruction to Universal Bundles. https://arxiv.org/abs/0908.0313

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