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arXiv · 1707.03814

Azumaya toposes

Jens Hemelaer
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Abstract

In arXiv:1606.07885, many different Grothendieck topologies were introduced on the category of Azumaya algebras. Here we give a classification in terms of sets of supernatural numbers. Then we discuss the associated categories of sheaves and their topos-theoretic points, which are related to UHF-algebras. The sheaf toposes that correspond to a single supernatural number have an alternative description, involving actions of the associated projective general linear group.

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Jens Hemelaer. 2017-07-12. Azumaya toposes. https://arxiv.org/abs/1707.03814

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