JP Journal of Algebra, Number Theory and Applications
Volume 2, Issue 1, Pages 1 - 3
(April 2002)
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A NOTE ON IDEMPOTENTS IN GROUP RINGS
Young Chan Lee (Korea) and Chang Kyu Hur (Korea)
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Abstract: When R is a ring with
an identity and the characteristic of R is
pi, where p is prime, and all
idempotents of R are central, then if G
is a locally finite p-group, we show that
the only idempotents of R[G] are the
idempotents of R. |
Keywords and phrases: group ring, idempotent. |
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