Extension Monads: Some Structure Theorems

Fuente: arXiv
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Auteurs principaux: Bowerman, Danielle, Insall, Matt
Format: Preprint
Publié: 2025
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author Bowerman, Danielle
Insall, Matt
author_facet Bowerman, Danielle
Insall, Matt
contents We investigate the behavior of extension monads, introduced in the 1990s by the second author, in terms of structure results for infinitely many finitary operations and common constructions in varieties or categories of algebras. Specifically, we see that for finite collections of algebras of the same signature there the extension monad operation commutes with the direct product operation, and that the only retractions from an enlargement or extension monad are trivial.
format Preprint
id arxiv_https___arxiv_org_abs_2508_05828
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Extension Monads: Some Structure Theorems
Bowerman, Danielle
Insall, Matt
Logic
Rings and Algebras
03H05 (Primary) 08A, 18A30, 03C20 (Secondary)
We investigate the behavior of extension monads, introduced in the 1990s by the second author, in terms of structure results for infinitely many finitary operations and common constructions in varieties or categories of algebras. Specifically, we see that for finite collections of algebras of the same signature there the extension monad operation commutes with the direct product operation, and that the only retractions from an enlargement or extension monad are trivial.
title Extension Monads: Some Structure Theorems
topic Logic
Rings and Algebras
03H05 (Primary) 08A, 18A30, 03C20 (Secondary)
url https://arxiv.org/abs/2508.05828