A recognition criterion for lax-idempotent pseudomonads

Fuente: arXiv
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Main Author: Bourke, John
Format: Preprint
Published: 2025
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_version_ 1866911328241713152
author Bourke, John
author_facet Bourke, John
contents We describe a simple criterion which makes it easy to recognise when a pseudomonad is lax-idempotent. The criterion concerns the behaviour of colax bilimits of arrows - certain comma objects - and is easy to verify in examples. Building on this, we obtain a new characterisation of lax-idempotent pseudomonads on 2-categories with colax bilimits of arrows.
format Preprint
id arxiv_https___arxiv_org_abs_2512_05631
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A recognition criterion for lax-idempotent pseudomonads
Bourke, John
Category Theory
18N10, 18N15, 18C15
We describe a simple criterion which makes it easy to recognise when a pseudomonad is lax-idempotent. The criterion concerns the behaviour of colax bilimits of arrows - certain comma objects - and is easy to verify in examples. Building on this, we obtain a new characterisation of lax-idempotent pseudomonads on 2-categories with colax bilimits of arrows.
title A recognition criterion for lax-idempotent pseudomonads
topic Category Theory
18N10, 18N15, 18C15
url https://arxiv.org/abs/2512.05631