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Bibliographic Details
Main Authors: Michie, Cameron, Tomasic, Ivan
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2403.08087
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Table of Contents:
  • We develop a theory of internal Hochschild cohomology in a ringed topos. We construct it via the internal Hochschild cochain complex, as well as through derived functor/topos cohomology theory, and discuss its relationship to the absolute Hochschild cohomology. By specialising to the topos of difference sets, we obtain a theory of internal difference Hochschild cohomology, and compare it to the absolute Hochschild cohomology through the Grothendieck and hypercohomology spectral sequences. We provide a systematic and detailed treatment of tensor products in suitable toposes in hope to complete the existing literature.