Picard group and fundamental group of the moduli of Higgs bundles on curves

Sujoy Chakraborty, Arjun Paul

Let $X$ be an irreducible smooth projective curve of genus $g\ge 2$ over $\mathbb{C}$. Let $G$ be a connected reductive affine algebraic group over $\mathbb{C}$. Let $\mathrm{M}_…