On the inverses of permutation polynomials of the form h(ψ(x))φ(x)+g(ψ(x)) over finite fields
Danyao WuPingzhi YuanXuan Pang
所有作者
Danyao WuPingzhi YuanXuan Pang
文献摘要
In this paper, we investigate the compositional inverses of permutation polynomials of the form F(x)=h(ψ(x))φ(x)+g(ψ(x))∈Fqn[x], where ψ(x),φ(x)∈Fqn[x] are additive polynomials, h(x),g(x)∈Fqn[x] satisfy h(ψ(Fqn))⊆Fq∗, and there exists a polynomial ψˉ(x)∈Fqn[x] such that ψˉ(F(x))=ψ(x).