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arXiv · 2505.03260

Brauer group of moduli of parabolic symplectic bundles

Indranil Biswas·Sujoy Chakraborty·Arijit Dey
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Abstract

Let $X$ be a smooth connected complex projective curve of genus $g$, with $g\,\geq\, 3$. Fix an integer $r\geq 2$, a finite subset $D\, \subset\, X$, and a line bundle $L$ on $X$. We compute the Brauer group of the smooth locus of the moduli space of parabolic symplectic stable bundles of rank $r$ on $X$ equipped with a symplectic form taking values in $L(D)$, where $L(D)$ is given the trivial parabolic structure.

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Indranil Biswas, Sujoy Chakraborty, Arijit Dey. 2025-05-06. Brauer group of moduli of parabolic symplectic bundles. https://arxiv.org/abs/2505.03260

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