Frobenius endomorphism

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What Wikipedia says

In commutative algebra and field theory, the Frobenius endomorphism (after Ferdinand Georg Frobenius) is a special endomorphism of commutative rings with prime characteristic p, an important class that includes finite fields. The endomorphism maps every element to its pth power.

Excerpt from the Wikipedia article “Frobenius endomorphism”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

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