Lattices of t-structures and thick subcategories for discrete cluster categories
Representation Theory
2022-12-29 v2 Category Theory
Abstract
We classify t-structures and thick subcategories in discrete cluster categories of Dynkin type , and show that the set of all t-structures on is a lattice under inclusion of aisles, with meet given by their intersection. We show that both the lattice of t-structures on obtained in this way and the lattice of thick subcategories of are intimately related to the lattice of non-crossing partitions of type . In particular, the lattice of equivalence classes of non-degenerate t-structures on such a category is isomorphic to the lattice of non-crossing partitions of a finite linearly ordered set.
Keywords
Cite
@article{arxiv.2110.08606,
title = {Lattices of t-structures and thick subcategories for discrete cluster categories},
author = {Sira Gratz and Alexandra Zvonareva},
journal= {arXiv preprint arXiv:2110.08606},
year = {2022}
}
Comments
21 pages, comments welcome