On band modules and -tilting finiteness

S Schroll, H Treffinger, Y Valdivieso - Mathematische Zeitschrift, 2021 - Springer
In this paper, motivated by a τ-tilting version of the Brauer-Thrall Conjectures, we study
general properties of band modules and their endomorphisms in the module category of a …

Remarks on -tilted versions of the second Brauer-Thrall Conjecture

C Pfeifer - arXiv preprint arXiv:2308.09576, 2023 - arxiv.org
In this short note, we state a stable and a $\tau $-reduced version of the second Brauer-
Thrall Conjecture. The former is a slight strengthening of a brick version of the second …

Monobrick, a uniform approach to torsion-free classes and wide subcategories

H Enomoto - Advances in Mathematics, 2021 - Elsevier
For a length abelian category, we show that all torsion-free classes can be classified by
using only the information on bricks, including non functorially-finite ones. The idea is to …

Semistable torsion classes and canonical decompositions in Grothendieck groups

S Asai, O Iyama - arXiv preprint arXiv:2112.14908, 2021 - arxiv.org
We study two classes of torsion classes which generalize functorially finite torsion classes,
that is, semistable torsion classes and morphism torsion classes. Semistable torsion classes …

An algebraic approach to Harder-Narasimhan filtrations

H Treffinger - arXiv preprint arXiv:1810.06322, 2018 - arxiv.org
In this article we study chains of torsion classes in an abelian category $\mathcal {A} $. We
prove that each chain of torsion classes induce a Harder-Narasimhan filtration for every …

τ-tilting finiteness of non-distributive algebras and their module varieties

K Mousavand - Journal of Algebra, 2022 - Elsevier
We treat the τ-tilting finiteness of minimal representation-infinite algebras and particularly the
non-distributive ones. Building upon the new results of Bongartz, we fully determine which …

MINIMAL (-) TILTING INFINITE ALGEBRAS

K Mousavand, C Paquette - Nagoya Mathematical Journal, 2023 - cambridge.org
Motivated by a new conjecture on the behavior of bricks, we start a systematic study of
minimal-tilting infinite (min--infinite, for short) algebras. In particular, we treat min--infinite …

τ-tilting theory–an introduction

H Treffinger - arXiv preprint arXiv:2106.00426, 2020 - cambridge.org
The term τ-tilting theory was coined by Adachi, Iyama and Reiten in [1] at the beginning of
the 2010s. In their paper, the authors created a fresh approach to the study of two classical …

A brick version of a theorem of Auslander

F Sentieri - Nagoya Mathematical Journal, 2023 - cambridge.org
A BRICK VERSION OF A THEOREM OF AUSLANDER Page 1 Nagoya Math. J., 249 (2023),
88–106 DOI 10.1017/nmj.2022.22 A BRICK VERSION OF A THEOREM OF AUSLANDER …

τ-Cluster morphism categories and picture groups

EJ Hanson, K Igusa - Communications in algebra, 2021 - Taylor & Francis
Abstract τ-cluster morphism categories, introduced by Buan and Marsh, are a generalization
of cluster morphism categories (defined by Igusa and Todorov). We show the classifying …