Small object arguments, plus-construction, and left-exact localizations

Autor: Anel, Mathieu, Subramaniam, Chaitanya Leena
Rok vydání: 2020
Předmět:
Druh dokumentu: Working Paper
Popis: We present a variant of the small object argument, inspired by Kelly, better suited to construct unique factorisation systems. Our main result is to compare it to the plus-construction involved in sheafification. We apply this to construct localizations, modalities and left-exact localizations explicitly from generators.
Comment: v2. Add a couple of examples
Databáze: arXiv