数学物理学报(英文版) ›› 1997, Vol. 17 ›› Issue (3): 250-254.
June Bok Lee1, Young Ho Park2
June Bok Lee1, Young Ho Park2
摘要: Trinomial permutation polynomials of the form xr(ax2s + bxs + c) over Fq have been studied where 3|q-1 and s=(q-1)/3. We derive some necessary and sufficient conditions for these trinomials to be permutation polynomials, and construct some examples. Moreover, we discuss the relationship between permutation trinomials of the given type over a tower of finite fields.