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幂等子代数上的支撑τ-倾斜模
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作者 胡永刚 周潘岳 《中国科学:数学》 CSCD 北大核心 2022年第5期493-504,共12页
设A是数域k上的有限维代数, e是A中的幂等元.本文证明了,如果A/AeA是左投射A-模,则有限生成右eAe-模T是支撑τ-倾斜模当且仅当T■eAe eA是A上的支撑τ-倾斜模.另一方面,如果A是遗传代数, T是支撑τ-倾斜A-模, A/AeA是右投射A-模,则Hom_(... 设A是数域k上的有限维代数, e是A中的幂等元.本文证明了,如果A/AeA是左投射A-模,则有限生成右eAe-模T是支撑τ-倾斜模当且仅当T■eAe eA是A上的支撑τ-倾斜模.另一方面,如果A是遗传代数, T是支撑τ-倾斜A-模, A/AeA是右投射A-模,则Hom_(A)(eA, T)是支撑τ-倾斜eAe-模.作为应用,本文证明了,若代数A是τ-倾斜有限的,则幂等子代数eAe也是τ-倾斜有限的. 展开更多
关键词 支撑τ-倾斜模 τ-倾斜有限 *-模 幂等子代数
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A direct product decomposition of QMV algebras
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作者 LU Xian 1 ,SHANG Yun 1,& LU RuQian 1,2 1 Institute of Mathematics,Academy of Mathematics and Systems Science,Beijing 100190,China 2 Key Laboratory of Intelligent Information Processing,Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100190,China 《Science China Mathematics》 SCIE 2012年第4期841-850,共10页
We study the direct product decomposition of quantum many-valued algebras (QMV algebras) which generalizes the decomposition theorem of ortholattices (orthomodular lattices).In detail,for an idempo- tent element of a ... We study the direct product decomposition of quantum many-valued algebras (QMV algebras) which generalizes the decomposition theorem of ortholattices (orthomodular lattices).In detail,for an idempo- tent element of a given QMV algebra,if it commutes with every element of the QMV algebra,it can induce a direct product decomposition of the QMV algebra.At the same time,we introduce the commutant C(S) of a set S in a QMV algebra,and prove that when S consists of idempotent elements,C(S) is a subalgebra of the QMV algebra.This also generalizes the cases of orthomodular lattices. 展开更多
关键词 QMV algebra COMMUTATIVITY IDEMPOTENT decomposition theorem
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