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Bulletin of the London Mathematical Society
Article . 1991 . Peer-reviewed
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Auslander-Reiten Quivers of Algebras whose Indecomposable Modules are Bricks

Auslander-Reiten quivers of algebras whose indecomposable modules are bricks
Authors: Dräxler, Peter;

Auslander-Reiten Quivers of Algebras whose Indecomposable Modules are Bricks

Abstract

Let \(A\) be a finite dimensional basic algebra over an algebraically closed field \(k\) and let \(1=\sum^ r_{i=1}e_ i\) be a decomposition of the unit element of \(A\) into primitive orthogonal idempotents. For given \(e_ i\) let \(\Gamma_ i\) be the full translation subquiver of the Auslander-Reiten quiver of \(A\) supported by all indecomposable \(A\)- modules \(M\) with the property \(e_ iM\neq 0\). The author proves that the following statements are equivalent: (a) For all \(i=1,\dots,r\) the quiver \(\Gamma_ i\) is the Auslander-Reiten quiver of a representation-finite poset. (b) For all \(i=1,\dots,r\) the quiver \(\Gamma_ i\) is finite and has no oriented cycles. (c) \(A\) is locally representation directed. (d) Every indecomposable \(A\)-module \(M\) is a brick, i.e. \(\dim_ k\text{End}(M)=1\).

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Keywords

brick, primitive orthogonal idempotents, Auslander-Reiten sequences (almost split sequences) and Auslander-Reiten quivers, Representations of quivers and partially ordered sets, Auslander-Reiten quiver, representation- finite poset, locally representation directed, finite dimensional basic algebra, indecomposable \(A\)-modules, Representation type (finite, tame, wild, etc.) of associative algebras

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average
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