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Auslander–Reiten translations in monomorphism categories

  • Bao-Lin Xiong EMAIL logo , Pu Zhang und Yue-Hui Zhang
Veröffentlicht/Copyright: 21. Februar 2012

Abstract.

We generalize Ringel and Schmidmeier's theory on the Auslander–Reiten translation of the submodule category 𝒮2(A) to the monomorphism category 𝒮n(A); the category consists of all chains of (n-1) composable monomorphisms of A-modules. As in the case of n=2, 𝒮n(A) has Auslander–Reiten sequences, and the Auslander–Reiten translation τ𝒮 of 𝒮n(A) can be explicitly formulated via τ of A-mod. Furthermore, if A is a selfinjective algebra, we study the periodicity of τ𝒮 on the objects of 𝒮n(A) and of the Serre functor F𝒮 on the objects of the stable monomorphism category 𝒮n(A)̲. In particular, τ𝒮2m(n+1)XX for X𝒮n(Λ(m,t)), and F𝒮m(n+1)XX for X𝒮n(Λ(m,t))̲, where Λ(m,t), m1, t2, are the selfinjective Nakayama algebras.

Funding source: NSF of China

Award Identifier / Grant number: 10725104

Funding source: STCSM

Award Identifier / Grant number: 09XD1402500

The authors sincerely thank the anonymous referee for carefully reading the manuscript, and for the valuable comments and suggestions, which improve the presentation.

Received: 2011-1-26
Revised: 2012-1-28
Published Online: 2012-2-21
Published in Print: 2014-5-1

© 2014 by Walter de Gruyter Berlin/Boston

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