2 papers
math.AG2025
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…
math.AG2024
On Special Subvarieties of the Universal Semi-abelian Scheme and Pink Conjectures
Kaiyuan Gu, Chenxin Huang
The universal Poincaré torsor, or more generally the universal semi-abelian scheme, can be viewed as a mixed Shimura variety. We give a classification of special subvarieties of t…