Quora: Galois Field Automorphism for 15/16 year-old kids

3 common Fields: \mathbb{R, Q, C} with 4 operations : {+ – × ÷}

Automorphism = “self”  isomorphism (Analogy:  look into mirror of yourself,  image is you <=> Automorphism of yourself).

The trivial Field Automorphism of : \mathbb{R, Q} is none other than Identity Automorphism (mirror image of itself).

Best example for Field Automorphism: \mathbb{C} and its conjugate. (a+ib) conjugate with (a-ib)
 

Field automorphisms using terms a 15/16/ year old would understand? by David Joyce

 

What interesting results are there regarding automorphisms of fields? by Henning Breede 

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