Displaying similar documents to “Approximation of the discrete logarithm in finite fields of even characteristic by real polynomials”

Quasi-permutation polynomials

Vichian Laohakosol, Suphawan Janphaisaeng (2010)

Czechoslovak Mathematical Journal

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A quasi-permutation polynomial is a polynomial which is a bijection from one subset of a finite field onto another with the same number of elements. This is a natural generalization of the familiar permutation polynomials. Basic properties of quasi-permutation polynomials are derived. General criteria for a quasi-permutation polynomial extending the well-known Hermite's criterion for permutation polynomials as well as a number of other criteria depending on the permuted domain and range...

On a decomposition of polynomials in several variables

Andrzej Schinzel (2002)

Journal de théorie des nombres de Bordeaux

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One considers representation of a polynomial in several variables as the sum of values of univariate polynomials taken at linear combinations of the variables.