The Classification of Algebras by Dominant Dimension

The Classification of Algebras by Dominant Dimension
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DOI:
10.4153/cjm-1968-037-9
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发表时间:
1968
期刊:
Canadian Journal of Mathematics
影响因子:
--
通讯作者:
Bruno J. Mueller
Bruno J. Mueller
中科院分区:
其他
文献类型:
--
作者:
Bruno J. Mueller

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Nakayama建议根据域上的有限维代数R所允许的投射和内射R-R-双模Xi的精确序列的长度来对它们进行分类。他证明,如果存在一个无限序列的这种类型,那么R必须是拟弗罗贝纽斯;他证明了这一点时,R是广义unisonous(17)。
Nakayama proposed to classify finite-dimensional algebras R over a field according to how long an exact sequence of projective and injective R-R-bimodules Xi they allow. He conjectured that if there exists an infinite sequence of this type, then R must be quasi-Frobenius; and he proved this when R is generalized uniserial (17).