An integral theory of dominant dimension of Noetherian algebras

T Cruz - Journal of Algebra, 2022 - Elsevier
Dominant dimension is introduced into integral representation theory, extending the
classical theory of dominant dimension of Artinian algebras to projective Noetherian …

A characterisation of Morita algebras in terms of covers

T Cruz - Algebras and Representation Theory, 2022 - Springer
Abstract A pair (A, P) is called a cover of End A (P) op if the Schur functor Hom A (P,−) is fully
faithful on the full subcategory of projective A-modules, for a given projective A-module P. By …

New invariants of stable equivalences of algebras

C Xi, J Zhang - arXiv preprint arXiv:2207.10848, 2022 - arxiv.org
We show that the Auslander-Reiten conjecture on stable equivalences holds true for
principal centralizer algebras of matrices over an algebraically closed field, and that …

The stable module category inside the homotopy category, perfect exact sequences and equivalences

S Nitsche - 2021 - elib.uni-stuttgart.de
We consider the functor from the stable module category to the homotopy category
constructed by Kato. This functor gives an equivalence between the stable module category …

A triangulated hull and a Nakayama closure of the stable module category inside the homotopy category

S Nitsche - arXiv preprint arXiv:2109.11868, 2021 - arxiv.org
The stable module category has been realized as a subcategory of the unbounded
homotopy category of projective modules by Kato. We construct the triangulated hull of this …

[HTML][HTML] Dominant and global dimension of blocks of quantised Schur algebras

M Fang, W Hu, S Koenig - Mathematische Zeitschrift, 2022 - Springer
Group algebras of symmetric groups and their Hecke algebras are in Schur-Weyl duality
with classical and quantised Schur algebras, respectively. Two homological dimensions, the …