Idempotents in group rings (Ex)

Revision as of 14:40, 12 August 2013

Let $<wikitex>; Let $p$ be a prime. Find all the idempotents in the group rings $R[\Zz/p|$ for $R = \Zz$, $R = \Cc$ and $R = \mathbb{F}_p$. </wikitex> == References == {{#RefList:}} [[Category:Exercises]] [[Category:Exercises without solution]]p$ be a prime. Find all the idempotents in the group rings $R[\Zz/p|$ for $R = \Zz$, $R = \Cc$ and $R = \mathbb{F}_p$.

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