English

Balanced systems for $\mathrm{Hom}$

Category Theory 2024-01-29 v3

Abstract

From the notion of (co)generator in relative homological algebra, we present the concept of finite balanced system [(X,ω);(ν,Y)][(\mathcal{X} , \omega ); (\nu, \mathcal{Y})] as a tool to induce balanced pairs (X,Y)(\mathcal{X} , \mathcal{Y} ) for the Hom\mathrm{Hom} functor with domain determined by the finiteness of homological dimensions relative to X\mathcal{X} and Y\mathcal{Y}. This approach to balance will cover several well known ambients where right derived functors of Hom\mathrm{Hom} are obtained relative to certain classes of objects in an abelian category, such as Gorenstein projective and injective modules and chain complexes, Gorenstein modules relative to Auslander and Bass classes, among others.

Keywords

Cite

@article{arxiv.2203.12140,
  title  = {Balanced systems for $\mathrm{Hom}$},
  author = {Víctor Becerril and Octavio Mendoza and Marco A. Pérez},
  journal= {arXiv preprint arXiv:2203.12140},
  year   = {2024}
}
R2 v1 2026-06-24T10:22:48.885Z