Classifying -structures via ICE-closed subcategories and a lattice of torsion classes

A Sakai - arXiv preprint arXiv:2307.11347, 2023 - arxiv.org
In a triangulated category equipped with a $ t $-structure, we investigate a relation between
ICE-closed (= Image-Cokernel-Extension-closed) subcategories of the heart of the $ t …

Hearts of set-generated t-structures have a set of generators

M Saorín - arXiv preprint arXiv:2408.01378, 2024 - arxiv.org
We show that if $\alpha $ is a regular cardinal, $\mathcal {D} $ is an $\alpha $-compactly
generated triangulated category, in the sense of Neeman\cite {N}, and $\tau $ is a t-structure …

Auslander-Reiten theory in proper abelian subcategories

D Nkansah - arXiv preprint arXiv:2312.07323, 2023 - arxiv.org
We study Auslander-Reiten theory in proper abelian subcategories of triangulated
categories with a Serre functor. To initiate this, we use approximations of a Serre functor to …

Classifying torsionfree classes of the category of coherent sheaves and their Serre subcategories

S Saito - Journal of Pure and Applied Algebra, 2024 - Elsevier
In this paper, we classify several subcategories of the category of coherent sheaves on a
divisorial noetherian scheme (eg a quasi-projective scheme over a commutative noetherian …

Well Generatedness and Adjoints for Homotopy Categories of N-complexes

M Cortés-Izurdiaga, B Torrecillas - Bulletin of the Malaysian Mathematical …, 2023 - Springer
Let R be a ring and N≥ 2. First, we prove that any deconstructible class of modules F over R
induces two coreflective subcategories of the homotopy category KN (Mod-R) of …

[PDF][PDF] A CLASSIFICATION OF T-STRUCTURES BY A LATTICE OF TORSION CLASSES

A SAKAI - on Ring Theory and Representation Theory, 2024 - ring-theory-japan.com
We introduce the notion of ICE sequences to investigate t-structures on the bounded derived
category of the module categories modΛ over a finite dimensional algebra Λ. We give a …

[引用][C] IE-closed and ICE-closed subcategories of module categories