Higher-dimensional Auslander–Reiten theory on maximal orthogonal subcategories

O Iyama - Advances in Mathematics, 2007 - Elsevier
We introduce the concept of maximal (n− 1)-orthogonal subcategories over Artin algebras
and orders, and develop (n+ 1)-dimensional Auslander–Reiten theory on them. We give the …

Auslander correspondence

O Iyama - Advances in Mathematics, 2007 - Elsevier
We study Auslander correspondence from the viewpoint of higher-dimensional analogue of
Auslander–Reiten theory [O. Iyama, Higher dimensional Auslander–Reiten theory on …

Cluster tilting for higher Auslander algebras

O Iyama - Advances in Mathematics, 2011 - Elsevier
The concept of cluster tilting gives a higher analogue of classical Auslander correspondence
between representation-finite algebras and Auslander algebras. The n-Auslander–Reiten …

Auslander--Reiten theory in extriangulated categories

O Iyama, H Nakaoka, Y Palu - arXiv preprint arXiv:1805.03776, 2018 - arxiv.org
The notion of an extriangulated category gives a unification of existing theories in exact or
abelian categories and in triangulated categories. In this article, we develop Auslander …

Auslander–Reiten theory in extriangulated categories

O Iyama, H Nakaoka, Y Palu - … of the American Mathematical Society, Series …, 2024 - ams.org
The notion of an extriangulated category gives a unification of existing theories in exact or
abelian categories and in triangulated categories. In this article, we develop Auslander …

Auslander-Reiten theory revisited

O Iyama - arXiv preprint arXiv:0803.2841, 2008 - arxiv.org
We recall several results in Auslander-Reiten theory for finite-dimensional algebras over
fields and orders over complete local rings. Then we introduce $ n $-cluster tilting …

The Jordan-Hölder property and Grothendieck monoids of exact categories

H Enomoto - Advances in Mathematics, 2022 - Elsevier
We investigate the Jordan-Hölder property (JHP) in exact categories. First, we show that
(JHP) holds in an exact category if and only if the Grothendieck monoid introduced by …

[HTML][HTML] Classifications of exact structures and Cohen–Macaulay-finite algebras

H Enomoto - Advances in Mathematics, 2018 - Elsevier
We give a classification of all exact structures on a given idempotent complete additive
category. Using this, we investigate the structure of an exact category with finitely many …

[HTML][HTML] Classifying exact categories via Wakamatsu tilting

H Enomoto - Journal of Algebra, 2017 - Elsevier
Using the Morita-type embedding, we show that any exact category with enough projectives
has a realization as a (pre) resolving subcategory of a module category. When the exact …

Rejective subcategories of artin algebras and orders

O Iyama - arXiv preprint math/0311281, 2003 - arxiv.org
We will study the resolution dimension of functorially finite subcategories. The subcategories
with the resolution dimension zero correspond to ring epimorphisms, and rejective …