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In this paper, Auslander-Reiten triangles are introduced into algebraic topology, and it is proved that their existence characterizes Poincare duality spaces. Invariants in the form of quivers are also introduced, and Auslander-Reiten…

Algebraic Topology · Mathematics 2007-05-23 Peter Jorgensen

In a previous paper, math.AT/0304079, Auslander-Reiten triangles and quivers were introduced into algebraic topology. This paper shows that over a Poincare duality space, each component of the Auslander-Reiten quiver is isomorphic to…

Algebraic Topology · Mathematics 2007-05-23 Peter Jorgensen

We analyze Auslander-Reiten quivers of functorially finite resolving subcategories. Chapter 1 gives a short introduction into the basic definitions and theorems of Auslander-Reiten theory in A-mod. We generalize these definitions and…

Representation Theory · Mathematics 2015-01-08 Matthias Krebs

We study Auslander-Reiten components of an artin algebra with bounded short cycles, namely, there exists a bound for the depths of maps appearing on short cycles of non-zero non-invertible maps between modules in the given component. First,…

Representation Theory · Mathematics 2017-01-12 Shiping Liu , Jinde Xu

Recall that an algebraic module is a KG-module that satisfies a polynomial with integer coefficients, with addition and multiplication given by direct sum and tensor product. In this article we prove that non-periodic algebraic modules are…

Representation Theory · Mathematics 2008-01-18 David A. Craven

We analyze Auslander-Reiten components for the bounded derived category of a finite-dimensional algebra. We classify derived categories whose Auslander-Reiten quiver has either a finite stable component or a stable component with finite…

Representation Theory · Mathematics 2010-03-29 Sarah Scherotzke

Let Q be a quiver of type ADE. We construct the corresponding Auslander-Reiten quiver as a topological complex inside the Coxeter complex associated with the underlying Dynkin diagram. We use the notion of chamber weights coming from the…

Quantum Algebra · Mathematics 2007-05-23 Shmuel Zelikson

Let $\Lambda$ be an Artin algebra and let $\rm{Gprj}\mbox{-}\Lambda$ denote the class of all finitely generated Gorenstein projective $\Lambda$-modules. In this paper, we study the components of the stable Auslander-Reiten quiver of a…

Representation Theory · Mathematics 2023-01-23 Rasool Hafezi , Yi Zhang

We provide a combinatorial algorithm for constructing the stable Auslander-Reiten component containing a given indecomposable module of a symmetric special biserial algebra using only information from its underlying Brauer graph. We also…

Representation Theory · Mathematics 2018-05-17 Drew Duffield

We deduce a necessary condition for Auslander-Reiten components of the bounded derived category of a finite dimensional algebra to have Euclidean tree class by classifying certain types of irreducible maps in the category of complexes. This…

Representation Theory · Mathematics 2009-06-29 Sarah Scherotzke

For the small half quantum groups and we show that the components of the stable Auslander-Reiten quiver containing gradable modules are of the form Z[A_\infty]

Representation Theory · Mathematics 2012-02-09 Julian Külshammer

In this article we describe the Auslander-Reiten quiver for some posets with an involution, that we call types $\mathfrak{U}_n$ and $\mathfrak{U}_\infty$. These posets appear in the differentiation III of Zavadskij [12]. We follow the…

Representation Theory · Mathematics 2022-07-13 Raymundo Bautista Ramos , Verónica Cifuentes Vargas

We describe the structure of semi-regular Auslander-Reiten components of artin algebras without external short paths in the module category. As an application we give a complete description of self-injective artin algebras whose…

Representation Theory · Mathematics 2012-01-20 Alicja Jaworska , Piotr Malicki , Andrzej Skowroński

In this paper, we introduce and study relative Auslander--Gorenstein pairs. This consists of a finite-dimensional Gorenstein algebra together with a self-orthogonal module that provides a further homological feature of the algebra in terms…

Representation Theory · Mathematics 2024-04-16 Tiago Cruz , Chrysostomos Psaroudakis

In a k-linear triangulated category (where k is a field) we show that the existence of Auslander-Reiten triangles implies that objects are determined, up to shift, by knowing dimensions of homomorphisms between them. In most cases the…

Representation Theory · Mathematics 2023-06-05 Peter Webb

We show that if a connected, Hom-finite, Krull-Schmidt triangulated category has an Auslander-Reiten quiver component with Dynkin tree class then the category has Auslander-Reiten triangles and that component is the entire quiver. This is…

Representation Theory · Mathematics 2015-02-24 Kosmas Diveris , Marju Purin , Peter Webb

We show that Auslander algebras have a unique tilting and cotilting module which is generated and cogenerated by a projective-injective; its endomorphism ring is called the projective quotient algebra. For any representation-finite algebra,…

Representation Theory · Mathematics 2015-09-29 William Crawley-Boevey , Julia Sauter

The quiver Hecke algebra $R$ can be also understood as a generalization of the affine Hecke algebra of type $A$ in the context of the quantum affine Schur-Weyl duality by the results of Kang, Kashiwara and Kim. On the other hand, it is…

Representation Theory · Mathematics 2015-03-18 Se-jin Oh

Let Q be a strongly locally finite quiver and denote by rep(Q) the category of locally finite dimensional representations of Q over some fixed field k. The main purpose of this paper is to get a better understanding of rep(Q) by means of…

Representation Theory · Mathematics 2012-09-07 Charles Paquette

We describe the structure and homological properties of arbitrary generalized standard Auslander-Reiten components of artin algebras. In particular, we prove that for all but finitely many indecomposable modules in such components the Euler…

Representation Theory · Mathematics 2018-02-09 Piotr Malicki , Andrzej Skowroński
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