English

Telescope conjecture for t-structures over noetherian path algebras

Representation Theory 2025-05-28 v1 Commutative Algebra Rings and Algebras

Abstract

Let RQRQ be the path algebra of a Dynkin quiver QQ over a commutative noetherian ring RR. We show that any homotopically smashing t-structure in the derived category of RQRQ is compactly generated. We also give a complete description of the compactly generated t-structures in terms of poset homomorphisms from the prime spectrum of the ring Spec(R)\mathrm{Spec}(R) to the poset of filtrations of noncrossing partitions of the quiver Filt(Nc(Q))\mathrm{Filt}(\mathbf{Nc}(Q)). In the case that RR is regular, we also get a complete description of the wide subcategories of the category mod(RQ)\mathrm{mod}(RQ).

Keywords

Cite

@article{arxiv.2505.20803,
  title  = {Telescope conjecture for t-structures over noetherian path algebras},
  author = {Enrico Sabatini},
  journal= {arXiv preprint arXiv:2505.20803},
  year   = {2025}
}

Comments

25 pages, 1 figure

R2 v1 2026-07-01T02:41:53.162Z