Sunday, 6 July 2014

Automorphisms of Finite Field Extension

Let KL finite (therefore algebraic) field extension. So not neccessary Galois. How to see that for automorphisms following inequility holds:



|Aut(L/K)||L/K|?

No comments:

Post a Comment

real analysis - How to find limhrightarrow0fracsin(ha)h

How to find lim without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...