The group law of Picard stacks via matrices
Algebraic Geometry
2026-03-18 v1 Category Theory
Number Theory
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.
Cite
@article{arxiv.2306.14762,
title = {The group law of Picard stacks via matrices},
author = {Cristiana Bertolin and Federica Galluzzi},
journal= {arXiv preprint arXiv:2306.14762},
year = {2026}
}