Rings derived from group rings
作者:
Jan Trlifaj,
期刊:
Communications in Algebra
(Taylor Available online 1992)
卷期:
Volume 20,
issue 8
页码: 2239-2252
ISSN:0092-7872
年代: 1992
DOI:10.1080/00927879208824460
出版商: Marcel Dekker, Inc.
关键词: group ring;von Neumann regular ring;tensor product.;1980 Mathematics subject classifications: 16S34, 16E50.
数据来源: Taylor
摘要:
The notion of a simple ring DGderived from a group ring KG is introduced in case K is a field and G is an infinite residually finite group. The close link between DGand KGis exploited in both directions: first, for a simple proof of the Kaplansky's conjecture concerning direct finiteness of KG. Second, to show that DGprovides counter-examples to some conjectures dealing with von Neumann regular rings and the rings all of whose one-sided ideals are generated by idempotents.
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