Show that the Frobenius mapping : GF( pn) GF( pn), given
Chapter 22, Problem 11E(choose chapter or problem)
Show that the Frobenius mapping ?: GF( pn) ?GF( pn), given by a ? ap, is a ring automorphism of order n (that is, ?n is the identity mapping). (This exercise is referred to in Chapter 32.)
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