The group law of Picard stacks via matrices

Author:

Cristiana Bertolin, Federica Galluzzi

Keyword:

Mathematics, Algebraic Geometry, Algebraic Geometry (math.AG), Category Theory (math.CT), Number Theory (math.NT)

journal:

date:

2023-06-25 16:00:00

Abstract

Let S be a site. We show that the 2-stack of strictly commutative Picard stacks over S is algebraic, i.e. it is 2-equivalent to the 2-stack of 2-algebras for an adequate algebraic 2-stack theory over S.

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