Notions of enriched purity

Jiří Rosický, Giacomo Tendas

Research output: Contribution to journalArticlepeer-review

Abstract

We introduce enriched notions of purity depending on the left class E of a factorization system on the base V of enrichment. Ordinary purity is given by the class of surjective mappings in the category of sets. Under specific assumptions, covering enrichment over quantale-valued metric spaces, ω-complete posets, and quasivarieties, we characterize the (λ, E)-injectivity classes of locally presentable V-categories in terms of closure under a class of limits, λ-filtered colimits, and (λ,E)-pure subobjects.
Original languageEnglish
Pages (from-to)2058-2104
Number of pages48
JournalTheory and Applications of Categories
Volume41
Issue number58
Publication statusPublished - 22 Dec 2024

Keywords

  • enriched accessible categories
  • enriched purity
  • enriched injectivity classes

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