Birational description of moduli spaces of rank 2 logarithmic connections

Takafumi Matsumoto

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arXiv · 2105.06892

Birational description of moduli spaces of rank 2 logarithmic connections

Takafumi Matsumoto

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Abstract

In this paper, we provide an explicit description of the Zariski-open subset of the moduli space of rank 2 parabolic logarithmic connections in the case $g\geq 2$. Our approach is to analyze the underlying parabolic bundles and the apparent singularities of the parabolic connections. We prove that a Zariski-open subset of the product of a projective space and the moduli space of parabolic bundles gives a Darboux coordinate for the moduli space of parabolic connections.

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Takafumi Matsumoto. 2021-05-14. Birational description of moduli spaces of rank 2 logarithmic connections. https://arxiv.org/abs/2105.06892

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