Polynomial endomorphisms over finite fields: experimental results

Abstract

Given a finite field $\F_q$ and $n\in {\mathbb{N}}^{\ast }$, one could try to compute all polynomial endomorphisms $\F_q^n\lp \F_q^n$ up to a certain degree with a specific property. We consider the case $n=3$. If the degree is low (like 2,3, or 4) and the finite field is small ($q\le 7$) then some of the computations are still feasible. In this article we study the following properties of endomorphisms: being a bijection of $\F_q^n\lp \F_q^n$, being a polynomial automorphism, being a {\em Mock automorphism}, and being a locally finite polynomial automorphism. In the resulting tables, we point out a few interesting objects, and pose some interesting conjectures which surfaced through our computations.

15 pages

References in corpus (2)

• A problem on polynomial maps over finite fields
• Polynomial automorphisms over finite fields: Mimicking non-tame and tame maps by the Derksen group

Cited by in corpus (1)

• Triangular polynomial maps in characteristic $p$