If there exists a one-to-one correspondence between two subgroups and subfields such that
(1)
| |||
(2)
|
then is said to have a Galois theory.
A Galois correspondence can also be defined for more general categories.
If there exists a one-to-one correspondence between two subgroups and subfields such that
(1)
| |||
(2)
|
then is said to have a Galois theory.
A Galois correspondence can also be defined for more general categories.
Weisstein, Eric W. "Galois Theory." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/GaloisTheory.html