English

Schemes of Objects in Abelian Categories

Algebraic Geometry 2025-11-07 v1

Abstract

In the article Categorical Construction of Schemes, arXiv:2511.03433 we gave a natural definition of ordinary schemes based on the fact that the localization of a ring in a maximal ideal is a local representation of the corresponding function field. In this text, we replace the category of rings with a general locally small category \catC\cat C, we consider a subcategory \catBC\cat B\subset C of base-points, and assume that each X\ob\catCX\in\ob\cat C that contains P\ob\catB,P\in\ob\cat B, i.e. there is a morphism PX,P\rightarrow X, there exists a local representing object XP.X_P. Assuming that coproducts exists, we can use the construction of ordinary schemes to construct schemes of objects in any such category.

Keywords

Cite

@article{arxiv.2511.04191,
  title  = {Schemes of Objects in Abelian Categories},
  author = {Arvid Siqveland},
  journal= {arXiv preprint arXiv:2511.04191},
  year   = {2025}
}
R2 v1 2026-07-01T07:24:16.164Z