English

Torsion and complete dualizable objects in tensor-triangulated categories over a Noetherian ring

Category Theory 2025-12-05 v1 Commutative Algebra Representation Theory

Abstract

We study categories of dualizable torsion and complete objects for compactly-rigidly generated tensor-triangulated categories T with a Noetherian central action of a graded commutative Noetherian ring R. We show that they always admit a natural Noetherian action of the completed graded ring R^ and that the categories of dualizable torsion and complete objects can be abstractly reconstructed as tensor-triangulated R^-linear categories from the category of compact torsions objects with the corresponding structure. If the category of compact objects of T in addition admits a strong generator g, we show that the torsion coreflection (resp. complete reflection) of g is a strong generator for the category of dualizable torsion (resp. dualizable complete) objects. In that case, we also show that the categories of dualizable torsion and compact torsion objects determine each other in terms of Brown-type representability theorems.

Keywords

Cite

@article{arxiv.2512.04818,
  title  = {Torsion and complete dualizable objects in tensor-triangulated categories over a Noetherian ring},
  author = {Jun Maillard and Jan Šťovíček},
  journal= {arXiv preprint arXiv:2512.04818},
  year   = {2025}
}

Comments

47 pages

R2 v1 2026-07-01T08:09:33.840Z