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一个代数的预投射分支和τ-预投射分支

Preprojective Components and τ-Preprojective Components of an Algebra
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摘要 设A是一个Artin代数,Γ_A是A的Auslander-Reiten箭图。我们得到:如果Γ是Γ_A的一个不包含有向循环的预投射分支,那么Γ是Γ_A的一个τ-预投射分支,且对一个拟倾斜代数A,Γ是Γ_A的一个预投射分支当且仅当Γ是Γ_A的一个,τ-预投射分支。 Let A be an Artin algebra, Γ_A be Auslander-Reiten quiver of A. We obtain that a preprojective component Γ of Γ_A is a τ-preprojective component of Γ_A if Γ contains no oriented cycles, and that Γ is a preprojective componeat of Γ_A if and only if Γ is a τ-preprojective component of Γ_A for a quasitilted algebra A.
出处 《数学学报(中文版)》 SCIE CSCD 北大核心 2004年第4期799-804,共6页 Acta Mathematica Sinica:Chinese Series
基金 国家自然科学基金 北京交通大学论文基金
关键词 预投射分支 τ-预投射分支 拟倾斜代数 Preprojective component τ-preprojective component Quasitilted algebra
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参考文献9

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