English

Compactly generated tensor t-structures on the derived category of a Noetherian scheme

Algebraic Geometry 2023-10-10 v2

Abstract

We introduce a tensor compatibility condition for t-structures. For any Noetherian scheme XX, we prove that there is a one-to-one correspondence between the set of filtrations of Thomason subsets and the set of aisles of compactly generated tensor compatible t-structures on the derived category of XX. This generalizes the earlier classification of compactly generated t-structures for commutative rings to schemes. Hrbek and Nakamura have reformulated the famous telescope conjecture for t-structures. As an application of our main theorem, we prove that a tensor version of the conjecture is true for separated Noetherian schemes.

Keywords

Cite

@article{arxiv.2204.05015,
  title  = {Compactly generated tensor t-structures on the derived category of a Noetherian scheme},
  author = {Gopinath Sahoo and Umesh V. Dubey},
  journal= {arXiv preprint arXiv:2204.05015},
  year   = {2023}
}

Comments

24 pages, corrected an argument in section 4, results unchanged

R2 v1 2026-06-24T10:44:20.068Z