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

Chenxin Huang, Zhiyuan Li, Manuel K. -H. Müller +1

In this paper, we investigate the Picard group of the Baily--Borel compactification of orthogonal Shimura varieties. As a key result, we determine the Picard group of the Baily--Bo…