Abstract
In the search for central units of a group algebra, we look at the class sums of the group algebra of the symmetric group S n in characteristic zero, and we show that they are units in very special instances.
2000 Mathematics Subject Classification:
ACKNOWLEDGMENT
The first author was partially supported by MURST of Italy; the second author was partially supported by CNPq of Brazil.
Notes
Communicated by S. Sehgal.