Niven Achenjang

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20182024

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math.AG2024

On Brauer groups of tame stacks

Niven Achenjang

We develop some general tools for computing the Brauer group of a tame algebraic stack $X$ by studying the difference between it and the Brauer group of the coarse space $…

math.AG2023

The Brauer Group of $Y_{0} (2)$

Niven Achenjang, Deewang Bhamidipati, Aashraya Jha +2

We determine the Brauer group of the Deligne-Mumford stack $Y_{0} (2)$ , the moduli space of elliptic curves with a marked $2$ -torsion subgroup over bases of arithmetic inter…

On Brauer groups of tame stacks

The Brauer Group of Y0​(2)

The Brauer Group of $Y_{0} (2)$