Manuel K. -H. Müller

The Picard group of the Baily–Borel compactification of the moduli space of quasi-polarized K3 surfaces and generalizations

Abstract We investigate the Picard group of the Baily–Borel compactification of orthogonal Shimura varieties. In particular, we show that the Picard group of the Baily–Borel compactification of the moduli space of quasi-polarized K3 surfaces is isomorphic to ℤ. Notably, this cont...