Unramified Brauer group of the moduli spaces of $PG{L}_r(\mathbb{C})$-bundles over curves

Indranil Biswas, Amit Hogadi, Yogish I. Holla

Let $X$ be an irreducible smooth complex projective curve of genus at least two. Let $N$ be a connected component of the moduli space of semistable principal ${\rm PGL}_r({\mathbb…