On the Picard group scheme of the moduli stack of stable pointed curves
arXiv:2005.06920
Abstract
The aim of the present paper is to study the (abstract) Picard group and the Picard group scheme of the moduli stack of stable pointed curves over an arbitrary scheme. As a byproduct, we compute the Picard groups of the moduli stack of stable or smooth pointed curves over a field of characteristic different from two.
arXiv comment39 pages
References in corpus (7)
- Foundations of Topological Stacks I
- Néron-Severi groups under specialization
- Foncteur de Picard d'un champ algébrique
- K-theory and cohomology of algebraic stacks: Riemann-Roch theorems, D-modules and GAGA theorems
- Finiteness theorems for the Picard objects of an algebraic stack
- The Q-Picard group of the moduli space of curves in positive characteristic
- Picard group of moduli of curves of low genus in positive characteristic