Is it necessarily true that if is a ring and . (i.e., the only automorphism of R, is for all ), then is commutative?
Follow Math Help Forum on Facebook and Google+
EDIT: Mistake of mine
Last edited by ModusPonens; December 2nd 2011 at 05:17 PM.
View Tag Cloud
LinkBack URL
About LinkBacksis a ring and
. (i.e., the only automorphism of R, is
for all
), then
