English

Triangulated Matlis equivalence

Category Theory 2018-04-05 v5 Commutative Algebra

Abstract

This paper is a sequel to arXiv:1503.05523 and arXiv:1605.03934. We extend the classical Harrison-Matlis module category equivalences to a triangulated equivalence between the derived categories of the abelian categories of torsion modules and contramodules over a Matlis domain. This generalizes to the case of any commutative ring RR with a fixed multiplicative system SS such that the RR-module S1RS^{-1}R has projective dimension 11. The latter equivalence connects complexes of RR-modules with SS-torsion and SS-contramodule cohomology modules. It takes a nicer form of an equivalence between the derived categories of abelian categories when SS consists of nonzero-divisors or the SS-torsion in RR is bounded.

Keywords

Cite

@article{arxiv.1605.08018,
  title  = {Triangulated Matlis equivalence},
  author = {Leonid Positselski},
  journal= {arXiv preprint arXiv:1605.08018},
  year   = {2018}
}

Comments

LaTeX 2e with pb-diagram and xy-pic, 41 pages, 5 commutative diagrams; v.2: additions throughout the text, new section 3 inserted, section 7 added, several references added; v.3: several references added, several misprints corrected; v.4: the beginning of section 1 rewritten, new Lemma 1.8 inserted, Remarks 4.7 and 6.8 added, several references added; v.5: several misprints corrected

R2 v1 2026-06-22T14:09:36.843Z