Year: 2014
Author: Yulin Zhang, Hailou Yao
Communications in Mathematical Research , Vol. 30 (2014), Iss. 4 : pp. 369–378
Abstract
Let $A$ be a basic hereditary artin algebra and $R = A \ltimes Q$ be the trivial extension of $A$ by its minimal injective cogenerator $Q$. We construct some right (left) almost split morphisms and irreducible morphisms in mod$R$ through the corresponding morphisms in mod$A$. Furthermore, we can determine its almost split sequences in mod$R$.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.13447/j.1674-5647.2014.04.10
Communications in Mathematical Research , Vol. 30 (2014), Iss. 4 : pp. 369–378
Published online: 2014-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 10
Keywords: hereditary algebra trivial extension AR sequence irreducible morphism.