English

T-structures and twisted complexes on derived injectives

Category Theory 2022-01-20 v3 K-Theory and Homology

Abstract

In the paper "Deformation theory of abelian categories", the last two authors proved that an abelian category with enough injectives can be reconstructed as the category of finitely presented modules over the category of its injective objects. We show a generalization of this to pretriangulated dg-categories with a left bounded non-degenerate t-structure with enough derived injectives, the latter being derived enhancements of the injective objects in the heart of the t-structure. Such dg-categories (with an additional hypothesis of closure under suitable products) can be completely described in terms of left bounded twisted complexes of their derived injectives.

Keywords

Cite

@article{arxiv.1905.07429,
  title  = {T-structures and twisted complexes on derived injectives},
  author = {Francesco Genovese and Wendy Lowen and Michel Van den Bergh},
  journal= {arXiv preprint arXiv:1905.07429},
  year   = {2022}
}

Comments

51 pages; postprint version

R2 v1 2026-06-23T09:11:09.953Z