The Number of Permutation Polynomials of
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Pinaki Das
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Article
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2002
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Elsevier Science
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English
โ 139 KB
We relate the number of permutation polynomials in F q ยฝx of degree d q ร 2 to the solutions รฐx 1 ; x 2 ; . . . ; x q ร of a system of linear equations over F q , with the added restriction that x i =0 and x i =x j whenever i=j. Using this we find an expression for the number of permutation polynomi