On the schur multiplier of augmented algebras

被引:1
|
作者
Abarbanel, J [1 ]
机构
[1] Tel Aviv Univ, Sch Math, IL-69978 Ramat Aviv, Israel
关键词
Associative Algebra; Free Algebra; Free Associative Algebra; Free Left; Hopf Formula;
D O I
10.1007/BF02780329
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let k be a field, and A a finitely generated k-algebra, with augmentation. Suppose there is a presentation of A 0 --> I --> R --> A --> 0 where R is a finitely generated free k-algebra and I is non-zero. If A is infinite dimensional over Ic, Lewin proved that R/I-2 is not finitely presented. A stronger statement would be that the 'Schur multiplier' of R/I-2 is not finite dimensional. In the case that A is an augmented domain, we prove this stronger statement, and some related statements.
引用
收藏
页码:197 / 202
页数:6
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