Notation question.

1. Nov 13, 2008

futurebird

K is a field and it has characteristic $$p \neq 0$$. What is the meaning of $$K^{p}=K$$ -- ?

2. Nov 14, 2008

morphism

K^p = { k^p : k in K }. So K^p = K means that every element in K has a pth root.

3. Nov 14, 2008

Thanks!