The Picard group of M_1,1

2007/04/17 by Fulton, William, Olsson, Martin · 1 citation
#Algebraic Geometry (math.AG) #FOS: Mathematics

paper · doi:10.48550/arxiv.0704.2214

Abstract

We compute the Picard group of the moduli stack of elliptic curves and its canonical compactification over general base schemes.

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