On the difference between permutation polynomials over finite fields

Nurdagül Anbar, Almasa Oduzak, Vandita Patel +3

The well-known Chowla and Zassenhaus conjecture, proven by Cohen in 1990, states that if $p>(d^2-3d+4{)}^2$, then there is no complete mapping polynomial $f$ in $\Fp[x]$ of degree $d…