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edited formatting

edited Jun 5, 2015 at 11:23

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When is $f(x^d)$ irreducible?

Let $f(x)$ be an irreducible polynomial of degree $n$ over a finite field $\mathbb F_p$. What can we say about $f(x^d)$? When is it irreducible ?

polynomials finite-fields

asked Jun 5, 2015 at 11:00

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