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arXiv · 2509.20629

Tame nodal stacky curves

Martin Bishop·William C. Newman
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Abstract

In this paper we analyze the properties of tame nodal stacky curves, in particular twisted curves and \textit{doubly-twisted} curves. Our main results are a complete classification of the possible structures of a tame stacky node, along with computations of the Picard and Brauer groups of nodal stacky curves.

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Martin Bishop, William C. Newman. 2025-09-25. Tame nodal stacky curves. https://arxiv.org/abs/2509.20629

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