Orthogonal Dimensions and Ring Extensions

Orthogonal Dimensions and Ring Extensions
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DOI:
10.1080/00927870500542556
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发表时间:
2006-06
影响因子:
0.7
通讯作者:
Dexu Zhou
Dexu Zhou
中科院分区:
数学3区
文献类型:
--
作者:
Dexu Zhou

文献摘要

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令 𝒜、ℬ 为模类,我们通过模 𝒜 ⊥、⊥ ℬ 和 𝒜 T 的正交类引入并表征模和环的正交维数。对于几乎优秀的扩展 S ≥ R,我们给出了测试模和环的正交维度的一些恒等式的标准。作为推论,获得或扩展了一些已知的结果。
Let 𝒜, ℬ be classes of modules, we introduce and characterize orthogonal dimensions of modules and rings by the orthogonal classes of modules 𝒜 ⊥, ⊥ ℬ, and 𝒜 T . For an almost excellent extension S ≥ R, we give the criteria to test some identities of orthogonal dimensions of modules and rings. As corollaries, some known results are obtained or extended.