English

Tilting objects in periodic triangulated categories

Representation Theory 2023-07-03 v2 Rings and Algebras

Abstract

A triangulated category T\mathcal{T} whose suspension functor Σ\Sigma satisfies ΣmIdT\Sigma^m \simeq \mathrm{Id}_{\mathcal{T}} as additive functors is called an mm-periodic triangulated category. Such a category does not have a tilting object by the periodicity. In this paper, we introduce the notion of an mm-periodic tilting object in an mm-periodic triangulated category, which is a periodic analogue of a tilting object in a triangulated category, and prove that an mm-periodic triangulated category having an mm-periodic tilting object is triangulated equivalent to the mm-periodic derived category of an algebra under some homological assumptions. As an application, we construct a triangulated equivalence between the stable category of a self-injective algebra and the mm-periodic derived category of a hereditary algebra.

Keywords

Cite

@article{arxiv.2011.14096,
  title  = {Tilting objects in periodic triangulated categories},
  author = {Shunya Saito},
  journal= {arXiv preprint arXiv:2011.14096},
  year   = {2023}
}

Comments

23 pages, Added new and corrected an error in the previous version, comments welcome

R2 v1 2026-06-23T20:34:04.971Z