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arXiv · 2510.08760

Further Investigation on Cyclotomic Mapping Permutation Polynomials over Finite Fields

Suman Mondal
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Abstract

We explore the connection between cyclotomic mapping permutation polynomials and permutation polynomials of the form $x^rf(x^{\frac{q-1}{l}})$ over finite fields. We present a new necessary and a new sufficient condition to verify permutation behavior of such polynomials over finite field. As its application, for particular values of $r$, we point out some permutation trinomials of the form $P(x)=2x^{r+8}+x^{r+4}+2x^r \in \mathbb{F}_{13}[x]$, and work on few classes of permutation binomials.

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Suman Mondal. 2025-10-09. Further Investigation on Cyclotomic Mapping Permutation Polynomials over Finite Fields. https://arxiv.org/abs/2510.08760

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