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math.RT2026

A new characterisation of Auslander-Gorenstein algebras

Viktória Klász, Markus Kleinau, Rene Marczinzik +1

We give a new characterisation of Auslander-Gorenstein finite dimensional algebras by showing that they are exactly the finite dimensional algebras with a well-defined Auslander-Re…

math.RT2026

Classification of Auslander-Gorenstein monomial algebras: The acyclic case

Viktória Klász, Markus Kleinau, René Marczinzik

We give a linear algebraic classification of Auslander regular acyclic monomial algebras via the Bruhat factorisation of the Coxeter matrix. Namely, we show under mild assumptions…

math.RT2025

Pure minimal injective resolutions and perfect modules for lattices

Tal Gottesman, Viktória Klász, Markus Kleinau +1

In a recent article, Iyama and Marczinzik showed that a lattice is distributive if and only if the incidence algebra is Auslander regular, giving a new connection between homologic…

math.RT2025

A survey on Auslander-Gorenstein algebras

Viktória Klász, Rene Marczinzik

We give a survey on Auslander-Gorenstein algebras with a focus on finite-dimensional algebras. We put an emphasis on recent classification results for special classes of algebras a…

math.RT2025

The Auslander-Gorenstein condition for monomial algebras

Viktória Klász

This paper investigates the Auslander-Gorenstein property for monomial algebras. First, we prove that every Auslander-Gorenstein monomial algebra is a string algebra and present a…

math.RT2025

Auslander regular algebras and Coxeter matrices

Viktória Klász, Rene Marczinzik, Hugh Thomas

We show that Iyama's grade bijection for Auslander-Gorenstein algebras coincides with the bijection introduced by Auslander-Reiten. This result uses a new characterisation of Ausla…

math.RT2024

Nakayama algebras of small homological dimension and pattern avoiding permutations

Viktória Klász, René Marczinzik, Judith Marquardt

We give a combinatorial classification of Nakayama algebras of small homological dimension using the Krattenthaler bijection between Dyck paths and 132-avoiding permutations.