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Picard groups on moduli of K3 surfaces with Mukai models by Greer, Francois; Li, Zhiyuan; Tian, Zhiyu is a scholarly article available to read on EtoBox.

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We discuss the Picard group of moduli space $\mathcal{K}_g$ of quasi-polarized K3 surfaces of genus $g\leq 12$ and $g\neq 11$. In this range, $\mathcal{K}_g$ is unirational and a general element in $\mathcal{K}_g$ is a complete intersection with respect to a vector bundle on a homogenous space, by the work of Mukai. In this paper, we find generators of the Picard group $Pic_\mathbb{Q}(\mathcal{K}_g)$ using Noether-Lefschetz theory. This verifies the Noether-Lefschetz conjecture on moduli of K3 surfaces in these cases.

Author

Greer, Francois; Li, Zhiyuan; Tian, Zhiyu

Published

2014

Language

EN