Brauer class over the Picard scheme of totally degenerate stable curves

2019/11/11 by Ma, Qixiao
#14F22 #14K30 #Algebraic Geometry (math.AG) #FOS: Mathematics

paper · doi:10.48550/arxiv.1911.04186

Abstract

We study the Brauer class rising from the obstruction to the existence of tautological line bundles on the Picard scheme of curves. We determine the period and index of the Brauer class in certain cases.

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