Classifying $t$-structures via ICE-closed subcategories and a lattice of torsion classes
Abstract
In a triangulated category equipped with a -structure, we investigate a relation between ICE-closed (=Image-Cokernel-Extension-closed) subcategories of the heart of the -structure and aisles in the triangulated categories. We introduce an ICE sequence, a sequence of ICE-closed subcategories satisfying a certain condition, and establish a bijection between ICE sequences and homology-determined preaisles. Moreover we give a sufficient condition that an ICE sequence induces a -structure via the bijection. In the case of the bounded derived category of a -tilting finite algebra , we give a description of ICE sequences in which induce bounded -structures on from the viewpoint of a lattice consisting of torsion classes in .
Keywords
Cite
@article{arxiv.2307.11347,
title = {Classifying $t$-structures via ICE-closed subcategories and a lattice of torsion classes},
author = {Arashi Sakai},
journal= {arXiv preprint arXiv:2307.11347},
year = {2023}
}
Comments
16 pages, reference updated