[HTML][HTML] Auslander–Gorenstein algebras and precluster tilting

O Iyama, Ø Solberg - Advances in Mathematics, 2018 - Elsevier
We generalize the notions of n-cluster tilting subcategories and τ-selfinjective algebras into
n-precluster tilting subcategories and τ n-selfinjective algebras, where we show that a …

An introduction to higher Auslander–Reiten theory

G Jasso, S Kvamme - Bulletin of the London Mathematical …, 2019 - Wiley Online Library
This article consists of an introduction to Iyama's higher Auslander–Reiten theory for Artin
algebras from the viewpoint of higher homological algebra. We provide alternative proofs of …

[HTML][HTML] Axiomatizing subcategories of abelian categories

S Kvamme - Journal of Pure and Applied Algebra, 2022 - Elsevier
We investigate how to characterize subcategories of abelian categories in terms of intrinsic
axioms. In particular, we find axioms which characterize generating cogenerating functorially …

New interpretations of the higher Stasheff–Tamari orders

NJ Williams - Advances in Mathematics, 2022 - Elsevier
Abstract In 1996, Edelman and Reiner defined the two higher Stasheff–Tamari orders on
triangulations of cyclic polytopes and conjectured them to coincide. We open up an …

The index in -exact categories

F Fedele, P Jørgensen, A Shah - arXiv preprint arXiv:2406.08971, 2024 - arxiv.org
Starting from its original definition in module categories with respect to projective modules,
the index has played an important role in various aspects of homological algebra …

Wide subcategories of 𝑑-cluster tilting subcategories

M Herschend, P Jørgensen, L Vaso - Transactions of the American …, 2020 - ams.org
Wide subcategories of 𝑑-cluster tilting subcategories Page 1 TRANSACTIONS OF THE
AMERICAN MATHEMATICAL SOCIETY Volume 373, Number 4, April 2020, Pages 2281–2309 …

[HTML][HTML] Auslander–Reiten (d+ 2)-angles in subcategories and a (d+ 2)-angulated generalisation of a theorem by Brüning

F Fedele - Journal of Pure and Applied Algebra, 2019 - Elsevier
Let Φ be a finite dimensional algebra over an algebraically closed field k and assume gldim
Φ≤ d, for some fixed positive integer d. For d= 1, Brüning proved that there is a bijection …

Cluster subalgebras and cotorsion pairs in Frobenius extriangulated categories

W Chang, P Zhou, B Zhu - Algebras and Representation Theory, 2019 - Springer
Nakaoka and Palu introduced the notion of extriangulated categories by extracting the
similarities between exact categories and triangulated categories. In this paper, we study …

[HTML][HTML] -Cluster tilting subcategories of singularity categories

S Kvamme - Mathematische Zeitschrift, 2021 - Springer
For an exact category EE with enough projectives and with ad Z d Z-cluster tilting
subcategory, we show that the singularity category of EE admits ad Z d Z-cluster tilting …

The role of gentle algebras in higher homological algebra

J Haugland, KM Jacobsen, S Schroll - Forum Mathematicum, 2022 - degruyter.com
We investigate the role of gentle algebras in higher homological algebra. In the first part of
the paper, we show that if the module category of a gentle algebra Λ contains ad-cluster …