Enumerating permutation polynomials over finite fields by degree II

  • Authors:
  • Sergei Konyagin;Francesco Pappalardi

  • Affiliations:
  • Department of Mechanics and Mathematics, Moscow State University, Vorobjovy Gory, 119992 Moscow, Russia;Dipartimento di Matematica, Università Degli Studi Roma Tre, Largo S.L. Murialdo, 1, I-00146 Roma, Italy

  • Venue:
  • Finite Fields and Their Applications
  • Year:
  • 2006

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Abstract

This note is a continuation of a paper by the same authors that appeared in 2002 in the same journal. First we extend the method of the previous paper proving an asymptotic formula for the number of permutations for which the associated permutation polynomial has d coefficients in specified fixed positions equal to 0. This also applies to the function N"q","d that counts the number of permutations for which the associated permutation polynomial has degree