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Displaying similar documents to “Quadratic residues and Tchebycheff polynomials”

Dickson Polynomials that are Permutations

Cipu, Mihai (2004)

Serdica Mathematical Journal

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2000 Mathematics Subject Classification: 11T06, 13P10. A theorem of S.D. Cohen gives a characterization for Dickson polynomials of the second kind that permutes the elements of a finite field of cardinality the square of the characteristic. Here, a different proof is presented for this result. Research supported by the CERES program of the Ministry of Education, Research and Youth, contract nr. 39/2002.