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![[parent]](http://images.planetmath.org:8080/images/uparrow.png) Viewing Correction to 'group ring'
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generalization by rmilson
Correction id: 446
Filed on: 2002-04-18 08:01:35
Status: Accepted on 2002-04-19 01:17:13
Type: Erratum
Correction text:
Shouldn't this be generalized to R[G], where R is any ring
or field?
Also add group algebra as a synonym
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Comment from object owner djao:
As I understand it, R[G] is the group algebra of G over R, and Z[G] is the group ring.
(This terminology does make sense. While R[G] is a ring, it is more precisely characterized as an algebra over R. And Z[G] is not in general an algebra over R, so the most that you can call it is a ring.)
I will add this material to the entry. |
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