On inverses of some permutation polynomials over finite fields of characteristic three

Yanbin Zheng; Fu Wang; Libo Wang; Wenhong Wei

doi:10.1016/j.ffa.2020.101670

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arXiv · 1904.03029

On inverses of some permutation polynomials over finite fields of characteristic three

Yanbin Zheng·Fu Wang·Libo Wang·Wenhong Wei

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Abstract

By using the piecewise method, Lagrange interpolation formula and Lucas' theorem, we determine explicit expressions of the inverses of a class of reversed Dickson permutation polynomials and some classes of generalized cyclotomic mapping permutation polynomials over finite fields of characteristic three.

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Yanbin Zheng, Fu Wang, Libo Wang, Wenhong Wei. 2019-04-05. On inverses of some permutation polynomials over finite fields of characteristic three. https://doi.org/10.1016/j.ffa.2020.101670

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