English

Filtrations in module categories, derived categories and prime spectra

Commutative Algebra 2020-09-28 v2 Representation Theory

Abstract

Let R be a commutative noetherian ring. The notion of n-wide subcategories of Mod R is introduced and studied in Matsui-Nam-Takahashi-Tri-Yen in relation to the cohomological dimension of a specialization-closed subset of Spec R. In this paper, we introduce the notions of n-coherent subsets of Spec R and n-uniform subcategories of D(Mod R), and explore their interactions with n-wide subcategories of Mod R. We obtain a commutative diagram which yields filtrations of subcategories of Mod R, D(Mod R) and subsets of Spec R and complements classification theorems of subcategories due to Gabriel, Krause, Neeman, Takahashi and Angeleri Hugel-Marks-Stovicek-Takahashi-Vitoria.

Keywords

Cite

@article{arxiv.1912.10584,
  title  = {Filtrations in module categories, derived categories and prime spectra},
  author = {Hiroki Matsui and Ryo Takahashi},
  journal= {arXiv preprint arXiv:1912.10584},
  year   = {2020}
}

Comments

17 pages, to appear in IMRN

R2 v1 2026-06-23T12:54:04.551Z