Tamely ramified torsors and parabolic bundles

Published 21 Jun 2017 in math.AG | (1706.06733v4)

Abstract: Given a variety $X$, and a normal crossings divisor $D\subset X$, we relate, in the case of abelian monodromy, the following two: 1. existence of a $G$-torsor with prescribed ramification, and 2. existence of essentially finite parabolic vector bundles with prescribed weights.

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