English

Toposes have an optimal noetherian form

Category Theory 2025-01-29 v3 Group Theory

Abstract

A noetherian form is an abstract self-dual framework suitable for establishing homomorphism theorems (such as the isomorphism theorems and homological diagram lemmas) for group-like structures. In this paper we identify and carry out an axiomatic analysis of a particular class of noetherian forms which exist for both group-like structures and for sheaves. More abstractly, such noetherian forms can be produced from all semi-abelian categories, Grandis exact categories and toposes.

Keywords

Cite

@article{arxiv.2304.03814,
  title  = {Toposes have an optimal noetherian form},
  author = {Zurab Janelidze and Francois van Niekerk},
  journal= {arXiv preprint arXiv:2304.03814},
  year   = {2025}
}

Comments

69 pages, submitted for publication

R2 v1 2026-06-28T09:54:54.738Z