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A note on the coefficients of inverse polynomials. (English) Zbl 1167.11044
Summary: We describe some relations on the coefficients of a polynomial in terms of the map that induces and use them to characterize the coefficients of the inverse polynomials of some special classes of permutation polynomials.

11T06 Polynomials over finite fields
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[1] Lidl, R.; Niderraĭter, G., Конечные поля. том 2, (1988), Mir Moscow, pp. 433-822 (in Russian). Translated from the English by A.E. Zhukov and V.I. Petrov. Translation edited by V.I. Nechaev
[2] G.L. Mullen, Permutation polynomials over finite fields, in: Finite Fields, Coding Theory, and Advances in Communication and Computing, Las Vegas, NY, 1991, pp. 131-151
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