Igusa-Todorov distances under singular equivalences and recollements

J Zhang, J Zheng - arXiv preprint arXiv:2405.09958, 2024 - arxiv.org
The Igusa-Todorov distances of an Artin algebra give a reasonable way of measuring how
far an algebra is from being Igusa-Todorov algebras. We show that the Igusa-Todorov …

Igusa-Todorov dimensions and derived dimensions of artin algebras

J Zheng - arXiv preprint arXiv:2211.00544, 2022 - arxiv.org
We introduce the notion of Igusa-Todorov dimension, and prove that this dimension is an
invariant under derived equivalent. Igusa-Todorov dimension also give a characterization of …

The finitistic dimension of an Artin algebra with radical square zero

V Gélinas - Proceedings of the American Mathematical Society, 2021 - ams.org
We investigate the inequality $\operatorname {Findim}\Lambda^{op}\leq\operatorname
{dell}\Lambda $ between the finitistic dimension and the delooping level of an Artin algebra …

Foundation of the representation theory of artin algebras, using the Gabriel-Roiter measure

CM Ringel - Contemporary Mathematics, 2006 - books.google.com
These notes are devoted to a single invariant, the Gabriel-Roiter measure of finite length
modules: this invariant was introduced by Gabriel (under the name 'Roiter measure') in 1972 …

The derived dimensions of (m, n)-Igusa-Todorov algebras

J Zheng - Journal of Algebra, 2022 - Elsevier
We give an upper bound for the dimension of the bounded derived categories of (m, n)-
Igusa-Todorov algebras, where m, n are two nonnegative integers. As an applications, we …

The Extension dimension of syzygy module categories

J Zheng, L Tian, Q Shu, J Zhang - arXiv preprint arXiv:2405.02921, 2024 - arxiv.org
In this paper, our primary focus is on investigating the extension dimensions of syzygy
module categories associated with Artin algebras, particularly under various equivalences …

Ideal Torsion Pairs for Artin Algebras

K Schlegel - arXiv preprint arXiv:2405.19023, 2024 - arxiv.org
For the module category of an Artin algebra, we generalize the notion of torsion pairs to
ideal torsion pairs. Instead of full subcategories of modules, ideals of morphisms of the …

On algebras of -finite and -infinite representation type

M Barrios, G Mata - arXiv preprint arXiv:1911.02325, 2019 - arxiv.org
Co-Gorenstein algebras were introduced by A. Beligiannis in\cite {B}. In\cite {KM}, the
authors propose the following conjecture (Co-GC): if $\Omega^ n (\mod A) $ is extension …

[PDF][PDF] Categorical resolutions of bounded derived categories

J ASADOLLAHI, R HAFEZI… - arXiv preprint arXiv …, 2016 - researchgate.net
Using a relative version of Auslander's formula, we show that bounded derived category of
every artin algebra admits a categorical resolution. This, in particular, implies that bounded …

Derived categories and syzygies

J Wei - arXiv preprint arXiv:1109.6226, 2011 - arxiv.org
We introduce syzygies for derived categories and study their properties. Using these, we
prove the derived invariance of the following classes of artin algebras:(1) syzygy-finite …