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arXiv 2109.07685math.AGmath-phmath.CVmath.MP
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分支SL(r,C)-opers

Branched SL(r,C)-opers

Indranil Biswas, Sorin Dumitrescu, Sebastian Heller

摘要:

我们定义了SL(r,C)-opers的分支类似物并研究了它们的性质。对于通常的SL(r,C)-算子,其基础的全纯向量丛与算子无关.对于分支的SL(r,C)-算子,其基础的全纯向量丛依赖于算子.给定一个分支SL(r,C)-算子,我们将它与另一个具有对数联络的全纯向量丛联系起来.这个全纯向量丛不依赖于分支算子。我们用这个固定的全纯向量丛上的对数联络刻画了分支SL(r,C)-算子.

英文摘要:

We define the branched analog of SL(r,C)-opers and investigate their properties. For the usual SL(r,C)-opers, the underlying holomorphic vector bundle is independent of the opers. For the branched SL(r,C)-opers, the underlying holomorphic vector bundle depends on the oper. Given a branched SL(r,C)-oper, we associate to it another holomorphic vector bundle equipped with a logarithmic connection. This holomorphic vector bundle does not depend on the branched oper. We characterize the branched SL(r,C)-opers in terms of the logarithmic connections on this fixed holomorphic vector bundle.

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